* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-quota-2.6: (27 commits)
ext2: Zero our b_size in ext2_quota_read()
trivial: fix typos/grammar errors in fs/Kconfig
quota: Coding style fixes
quota: Remove superfluous inlines
quota: Remove uppercase aliases for quota functions.
nfsd: Use lowercase names of quota functions
jfs: Use lowercase names of quota functions
udf: Use lowercase names of quota functions
ufs: Use lowercase names of quota functions
reiserfs: Use lowercase names of quota functions
ext4: Use lowercase names of quota functions
ext3: Use lowercase names of quota functions
ext2: Use lowercase names of quota functions
ramfs: Remove quota call
vfs: Use lowercase names of quota functions
quota: Remove dqbuf_t and other cleanups
quota: Remove NODQUOT macro
quota: Make global quota locks cacheline aligned
quota: Move quota files into separate directory
ext4: quota reservation for delayed allocation
...
source "fs/notify/Kconfig"
-config QUOTA
- bool "Quota support"
- help
- If you say Y here, you will be able to set per user limits for disk
- usage (also called disk quotas). Currently, it works for the
- ext2, ext3, and reiserfs file system. ext3 also supports journalled
- quotas for which you don't need to run quotacheck(8) after an unclean
- shutdown.
- For further details, read the Quota mini-HOWTO, available from
- <http://www.tldp.org/docs.html#howto>, or the documentation provided
- with the quota tools. Probably the quota support is only useful for
- multi user systems. If unsure, say N.
-
-config QUOTA_NETLINK_INTERFACE
- bool "Report quota messages through netlink interface"
- depends on QUOTA && NET
- help
- If you say Y here, quota warnings (about exceeding softlimit, reaching
- hardlimit, etc.) will be reported through netlink interface. If unsure,
- say Y.
-
-config PRINT_QUOTA_WARNING
- bool "Print quota warnings to console (OBSOLETE)"
- depends on QUOTA
- default y
- help
- If you say Y here, quota warnings (about exceeding softlimit, reaching
- hardlimit, etc.) will be printed to the process' controlling terminal.
- Note that this behavior is currently deprecated and may go away in
- future. Please use notification via netlink socket instead.
-
-# Generic support for tree structured quota files. Seleted when needed.
-config QUOTA_TREE
- tristate
-
-config QFMT_V1
- tristate "Old quota format support"
- depends on QUOTA
- help
- This quota format was (is) used by kernels earlier than 2.4.22. If
- you have quota working and you don't want to convert to new quota
- format say Y here.
-
-config QFMT_V2
- tristate "Quota format v2 support"
- depends on QUOTA
- select QUOTA_TREE
- help
- This quota format allows using quotas with 32-bit UIDs/GIDs. If you
- need this functionality say Y here.
-
-config QUOTACTL
- bool
- depends on XFS_QUOTA || QUOTA
- default y
+source "fs/quota/Kconfig"
source "fs/autofs/Kconfig"
source "fs/autofs4/Kconfig"
obj-$(CONFIG_NFS_COMMON) += nfs_common/
obj-$(CONFIG_GENERIC_ACL) += generic_acl.o
-obj-$(CONFIG_QUOTA) += dquot.o
-obj-$(CONFIG_QFMT_V1) += quota_v1.o
-obj-$(CONFIG_QFMT_V2) += quota_v2.o
-obj-$(CONFIG_QUOTA_TREE) += quota_tree.o
-obj-$(CONFIG_QUOTACTL) += quota.o
+obj-y += quota/
obj-$(CONFIG_PROC_FS) += proc/
obj-y += partitions/
if (!error) {
if ((ia_valid & ATTR_UID && attr->ia_uid != inode->i_uid) ||
(ia_valid & ATTR_GID && attr->ia_gid != inode->i_gid))
- error = DQUOT_TRANSFER(inode, attr) ? -EDQUOT : 0;
+ error = vfs_dq_transfer(inode, attr) ?
+ -EDQUOT : 0;
if (!error)
error = inode_setattr(inode, attr);
}
error_return:
brelse(bitmap_bh);
release_blocks(sb, freed);
- DQUOT_FREE_BLOCK(inode, freed);
+ vfs_dq_free_block(inode, freed);
}
/**
/*
* Check quota for allocation of this block.
*/
- if (DQUOT_ALLOC_BLOCK(inode, num)) {
+ if (vfs_dq_alloc_block(inode, num)) {
*errp = -EDQUOT;
return 0;
}
*errp = 0;
brelse(bitmap_bh);
- DQUOT_FREE_BLOCK(inode, *count-num);
+ vfs_dq_free_block(inode, *count-num);
*count = num;
return ret_block;
* Undo the block allocation
*/
if (!performed_allocation)
- DQUOT_FREE_BLOCK(inode, *count);
+ vfs_dq_free_block(inode, *count);
brelse(bitmap_bh);
return 0;
}
if (!is_bad_inode(inode)) {
/* Quota is already initialized in iput() */
ext2_xattr_delete_inode(inode);
- DQUOT_FREE_INODE(inode);
- DQUOT_DROP(inode);
+ vfs_dq_free_inode(inode);
+ vfs_dq_drop(inode);
}
es = EXT2_SB(sb)->s_es;
goto fail_drop;
}
- if (DQUOT_ALLOC_INODE(inode)) {
+ if (vfs_dq_alloc_inode(inode)) {
err = -EDQUOT;
goto fail_drop;
}
return inode;
fail_free_drop:
- DQUOT_FREE_INODE(inode);
+ vfs_dq_free_inode(inode);
fail_drop:
- DQUOT_DROP(inode);
+ vfs_dq_drop(inode);
inode->i_flags |= S_NOQUOTA;
inode->i_nlink = 0;
unlock_new_inode(inode);
return error;
if ((iattr->ia_valid & ATTR_UID && iattr->ia_uid != inode->i_uid) ||
(iattr->ia_valid & ATTR_GID && iattr->ia_gid != inode->i_gid)) {
- error = DQUOT_TRANSFER(inode, iattr) ? -EDQUOT : 0;
+ error = vfs_dq_transfer(inode, iattr) ? -EDQUOT : 0;
if (error)
return error;
}
sb->s_blocksize - offset : toread;
tmp_bh.b_state = 0;
+ tmp_bh.b_size = sb->s_blocksize;
err = ext2_get_block(inode, blk, &tmp_bh, 0);
if (err < 0)
return err;
ea_bdebug(new_bh, "reusing block");
error = -EDQUOT;
- if (DQUOT_ALLOC_BLOCK(inode, 1)) {
+ if (vfs_dq_alloc_block(inode, 1)) {
unlock_buffer(new_bh);
goto cleanup;
}
* as if nothing happened and cleanup the unused block */
if (error && error != -ENOSPC) {
if (new_bh && new_bh != old_bh)
- DQUOT_FREE_BLOCK(inode, 1);
+ vfs_dq_free_block(inode, 1);
goto cleanup;
}
} else
le32_add_cpu(&HDR(old_bh)->h_refcount, -1);
if (ce)
mb_cache_entry_release(ce);
- DQUOT_FREE_BLOCK(inode, 1);
+ vfs_dq_free_block(inode, 1);
mark_buffer_dirty(old_bh);
ea_bdebug(old_bh, "refcount now=%d",
le32_to_cpu(HDR(old_bh)->h_refcount));
mark_buffer_dirty(bh);
if (IS_SYNC(inode))
sync_dirty_buffer(bh);
- DQUOT_FREE_BLOCK(inode, 1);
+ vfs_dq_free_block(inode, 1);
}
EXT2_I(inode)->i_file_acl = 0;
}
ext3_free_blocks_sb(handle, sb, block, count, &dquot_freed_blocks);
if (dquot_freed_blocks)
- DQUOT_FREE_BLOCK(inode, dquot_freed_blocks);
+ vfs_dq_free_block(inode, dquot_freed_blocks);
return;
}
/*
* Check quota for allocation of this block.
*/
- if (DQUOT_ALLOC_BLOCK(inode, num)) {
+ if (vfs_dq_alloc_block(inode, num)) {
*errp = -EDQUOT;
return 0;
}
*errp = 0;
brelse(bitmap_bh);
- DQUOT_FREE_BLOCK(inode, *count-num);
+ vfs_dq_free_block(inode, *count-num);
*count = num;
return ret_block;
* Undo the block allocation
*/
if (!performed_allocation)
- DQUOT_FREE_BLOCK(inode, *count);
+ vfs_dq_free_block(inode, *count);
brelse(bitmap_bh);
return 0;
}
* Note: we must free any quota before locking the superblock,
* as writing the quota to disk may need the lock as well.
*/
- DQUOT_INIT(inode);
+ vfs_dq_init(inode);
ext3_xattr_delete_inode(handle, inode);
- DQUOT_FREE_INODE(inode);
- DQUOT_DROP(inode);
+ vfs_dq_free_inode(inode);
+ vfs_dq_drop(inode);
is_directory = S_ISDIR(inode->i_mode);
sizeof(struct ext3_inode) - EXT3_GOOD_OLD_INODE_SIZE : 0;
ret = inode;
- if(DQUOT_ALLOC_INODE(inode)) {
+ if (vfs_dq_alloc_inode(inode)) {
err = -EDQUOT;
goto fail_drop;
}
return ret;
fail_free_drop:
- DQUOT_FREE_INODE(inode);
+ vfs_dq_free_inode(inode);
fail_drop:
- DQUOT_DROP(inode);
+ vfs_dq_drop(inode);
inode->i_flags |= S_NOQUOTA;
inode->i_nlink = 0;
unlock_new_inode(inode);
error = PTR_ERR(handle);
goto err_out;
}
- error = DQUOT_TRANSFER(inode, attr) ? -EDQUOT : 0;
+ error = vfs_dq_transfer(inode, attr) ? -EDQUOT : 0;
if (error) {
ext3_journal_stop(handle);
return error;
ret = 2 * (bpp + indirects) + 2;
#ifdef CONFIG_QUOTA
- /* We know that structure was already allocated during DQUOT_INIT so
+ /* We know that structure was already allocated during vfs_dq_init so
* we will be updating only the data blocks + inodes */
ret += 2*EXT3_QUOTA_TRANS_BLOCKS(inode->i_sb);
#endif
* i_size has been changed by generic_commit_write() and we thus need
* to include the updated inode in the current transaction.
*
- * Also, DQUOT_ALLOC_SPACE() will always dirty the inode when blocks
+ * Also, vfs_dq_alloc_space() will always dirty the inode when blocks
* are allocated to the file.
*
* If the inode is marked synchronous, we don't honour that here - doing
/* Initialize quotas before so that eventual writes go in
* separate transaction */
- DQUOT_INIT(dentry->d_inode);
+ vfs_dq_init(dentry->d_inode);
handle = ext3_journal_start(dir, EXT3_DELETE_TRANS_BLOCKS(dir->i_sb));
if (IS_ERR(handle))
return PTR_ERR(handle);
/* Initialize quotas before so that eventual writes go
* in separate transaction */
- DQUOT_INIT(dentry->d_inode);
+ vfs_dq_init(dentry->d_inode);
handle = ext3_journal_start(dir, EXT3_DELETE_TRANS_BLOCKS(dir->i_sb));
if (IS_ERR(handle))
return PTR_ERR(handle);
/* Initialize quotas before so that eventual writes go
* in separate transaction */
if (new_dentry->d_inode)
- DQUOT_INIT(new_dentry->d_inode);
+ vfs_dq_init(new_dentry->d_inode);
handle = ext3_journal_start(old_dir, 2 *
EXT3_DATA_TRANS_BLOCKS(old_dir->i_sb) +
EXT3_INDEX_EXTRA_TRANS_BLOCKS + 2);
#define QTYPE2NAME(t) ((t)==USRQUOTA?"user":"group")
#define QTYPE2MOPT(on, t) ((t)==USRQUOTA?((on)##USRJQUOTA):((on)##GRPJQUOTA))
-static int ext3_dquot_initialize(struct inode *inode, int type);
-static int ext3_dquot_drop(struct inode *inode);
static int ext3_write_dquot(struct dquot *dquot);
static int ext3_acquire_dquot(struct dquot *dquot);
static int ext3_release_dquot(struct dquot *dquot);
const char *data, size_t len, loff_t off);
static struct dquot_operations ext3_quota_operations = {
- .initialize = ext3_dquot_initialize,
- .drop = ext3_dquot_drop,
+ .initialize = dquot_initialize,
+ .drop = dquot_drop,
.alloc_space = dquot_alloc_space,
.alloc_inode = dquot_alloc_inode,
.free_space = dquot_free_space,
}
list_add(&EXT3_I(inode)->i_orphan, &EXT3_SB(sb)->s_orphan);
- DQUOT_INIT(inode);
+ vfs_dq_init(inode);
if (inode->i_nlink) {
printk(KERN_DEBUG
"%s: truncating inode %lu to %Ld bytes\n",
* Process 1 Process 2
* ext3_create() quota_sync()
* journal_start() write_dquot()
- * DQUOT_INIT() down(dqio_mutex)
+ * vfs_dq_init() down(dqio_mutex)
* down(dqio_mutex) journal_start()
*
*/
return sb_dqopt(dquot->dq_sb)->files[dquot->dq_type];
}
-static int ext3_dquot_initialize(struct inode *inode, int type)
-{
- handle_t *handle;
- int ret, err;
-
- /* We may create quota structure so we need to reserve enough blocks */
- handle = ext3_journal_start(inode, 2*EXT3_QUOTA_INIT_BLOCKS(inode->i_sb));
- if (IS_ERR(handle))
- return PTR_ERR(handle);
- ret = dquot_initialize(inode, type);
- err = ext3_journal_stop(handle);
- if (!ret)
- ret = err;
- return ret;
-}
-
-static int ext3_dquot_drop(struct inode *inode)
-{
- handle_t *handle;
- int ret, err;
-
- /* We may delete quota structure so we need to reserve enough blocks */
- handle = ext3_journal_start(inode, 2*EXT3_QUOTA_DEL_BLOCKS(inode->i_sb));
- if (IS_ERR(handle)) {
- /*
- * We call dquot_drop() anyway to at least release references
- * to quota structures so that umount does not hang.
- */
- dquot_drop(inode);
- return PTR_ERR(handle);
- }
- ret = dquot_drop(inode);
- err = ext3_journal_stop(handle);
- if (!ret)
- ret = err;
- return ret;
-}
-
static int ext3_write_dquot(struct dquot *dquot)
{
int ret, err;
error = ext3_journal_dirty_metadata(handle, bh);
if (IS_SYNC(inode))
handle->h_sync = 1;
- DQUOT_FREE_BLOCK(inode, 1);
+ vfs_dq_free_block(inode, 1);
ea_bdebug(bh, "refcount now=%d; releasing",
le32_to_cpu(BHDR(bh)->h_refcount));
if (ce)
/* The old block is released after updating
the inode. */
error = -EDQUOT;
- if (DQUOT_ALLOC_BLOCK(inode, 1))
+ if (vfs_dq_alloc_block(inode, 1))
goto cleanup;
error = ext3_journal_get_write_access(handle,
new_bh);
return error;
cleanup_dquot:
- DQUOT_FREE_BLOCK(inode, 1);
+ vfs_dq_free_block(inode, 1);
goto cleanup;
bad_block:
ext4_mb_free_blocks(handle, inode, block, count,
metadata, &dquot_freed_blocks);
if (dquot_freed_blocks)
- DQUOT_FREE_BLOCK(inode, dquot_freed_blocks);
+ vfs_dq_free_block(inode, dquot_freed_blocks);
return;
}
#include <linux/blkdev.h>
#include <linux/magic.h>
#include <linux/jbd2.h>
+#include <linux/quota.h>
#include "ext4_i.h"
/*
extern int ext4_block_truncate_page(handle_t *handle,
struct address_space *mapping, loff_t from);
extern int ext4_page_mkwrite(struct vm_area_struct *vma, struct page *page);
+extern qsize_t ext4_get_reserved_space(struct inode *inode);
/* ioctl.c */
extern long ext4_ioctl(struct file *, unsigned int, unsigned long);
* Note: we must free any quota before locking the superblock,
* as writing the quota to disk may need the lock as well.
*/
- DQUOT_INIT(inode);
+ vfs_dq_init(inode);
ext4_xattr_delete_inode(handle, inode);
- DQUOT_FREE_INODE(inode);
- DQUOT_DROP(inode);
+ vfs_dq_free_inode(inode);
+ vfs_dq_drop(inode);
is_directory = S_ISDIR(inode->i_mode);
ei->i_extra_isize = EXT4_SB(sb)->s_want_extra_isize;
ret = inode;
- if (DQUOT_ALLOC_INODE(inode)) {
+ if (vfs_dq_alloc_inode(inode)) {
err = -EDQUOT;
goto fail_drop;
}
return ret;
fail_free_drop:
- DQUOT_FREE_INODE(inode);
+ vfs_dq_free_inode(inode);
fail_drop:
- DQUOT_DROP(inode);
+ vfs_dq_drop(inode);
inode->i_flags |= S_NOQUOTA;
inode->i_nlink = 0;
unlock_new_inode(inode);
return err;
}
+qsize_t ext4_get_reserved_space(struct inode *inode)
+{
+ unsigned long long total;
+
+ spin_lock(&EXT4_I(inode)->i_block_reservation_lock);
+ total = EXT4_I(inode)->i_reserved_data_blocks +
+ EXT4_I(inode)->i_reserved_meta_blocks;
+ spin_unlock(&EXT4_I(inode)->i_block_reservation_lock);
+
+ return total;
+}
/*
* Calculate the number of metadata blocks need to reserve
* to allocate @blocks for non extent file based file
/* update per-inode reservations */
BUG_ON(used > EXT4_I(inode)->i_reserved_data_blocks);
EXT4_I(inode)->i_reserved_data_blocks -= used;
-
spin_unlock(&EXT4_I(inode)->i_block_reservation_lock);
+
+ /*
+ * free those over-booking quota for metadata blocks
+ */
+
+ if (mdb_free)
+ vfs_dq_release_reservation_block(inode, mdb_free);
}
/*
static int ext4_da_reserve_space(struct inode *inode, int nrblocks)
{
int retries = 0;
- struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb);
- unsigned long md_needed, mdblocks, total = 0;
+ struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb);
+ unsigned long md_needed, mdblocks, total = 0;
/*
* recalculate the amount of metadata blocks to reserve
md_needed = mdblocks - EXT4_I(inode)->i_reserved_meta_blocks;
total = md_needed + nrblocks;
+ /*
+ * Make quota reservation here to prevent quota overflow
+ * later. Real quota accounting is done at pages writeout
+ * time.
+ */
+ if (vfs_dq_reserve_block(inode, total)) {
+ spin_unlock(&EXT4_I(inode)->i_block_reservation_lock);
+ return -EDQUOT;
+ }
+
if (ext4_claim_free_blocks(sbi, total)) {
spin_unlock(&EXT4_I(inode)->i_block_reservation_lock);
if (ext4_should_retry_alloc(inode->i_sb, &retries)) {
yield();
goto repeat;
}
+ vfs_dq_release_reservation_block(inode, total);
return -ENOSPC;
}
EXT4_I(inode)->i_reserved_data_blocks += nrblocks;
BUG_ON(mdb > EXT4_I(inode)->i_reserved_meta_blocks);
EXT4_I(inode)->i_reserved_meta_blocks = mdb;
spin_unlock(&EXT4_I(inode)->i_block_reservation_lock);
+
+ vfs_dq_release_reservation_block(inode, release);
}
static void ext4_da_page_release_reservation(struct page *page,
error = PTR_ERR(handle);
goto err_out;
}
- error = DQUOT_TRANSFER(inode, attr) ? -EDQUOT : 0;
+ error = vfs_dq_transfer(inode, attr) ? -EDQUOT : 0;
if (error) {
ext4_journal_stop(handle);
return error;
* i_size has been changed by generic_commit_write() and we thus need
* to include the updated inode in the current transaction.
*
- * Also, DQUOT_ALLOC_SPACE() will always dirty the inode when blocks
+ * Also, vfs_dq_alloc_block() will always dirty the inode when blocks
* are allocated to the file.
*
* If the inode is marked synchronous, we don't honour that here - doing
if (!(ac->ac_flags & EXT4_MB_DELALLOC_RESERVED))
/* release all the reserved blocks if non delalloc */
percpu_counter_sub(&sbi->s_dirtyblocks_counter, reserv_blks);
- else
+ else {
percpu_counter_sub(&sbi->s_dirtyblocks_counter,
ac->ac_b_ex.fe_len);
+ /* convert reserved quota blocks to real quota blocks */
+ vfs_dq_claim_block(ac->ac_inode, ac->ac_b_ex.fe_len);
+ }
if (sbi->s_log_groups_per_flex) {
ext4_group_t flex_group = ext4_flex_group(sbi,
struct ext4_sb_info *sbi;
struct super_block *sb;
ext4_fsblk_t block = 0;
- unsigned int inquota;
+ unsigned int inquota = 0;
unsigned int reserv_blks = 0;
sb = ar->inode->i_sb;
(unsigned long long) ar->pleft,
(unsigned long long) ar->pright);
- if (!EXT4_I(ar->inode)->i_delalloc_reserved_flag) {
- /*
- * With delalloc we already reserved the blocks
+ /*
+ * For delayed allocation, we could skip the ENOSPC and
+ * EDQUOT check, as blocks and quotas have been already
+ * reserved when data being copied into pagecache.
+ */
+ if (EXT4_I(ar->inode)->i_delalloc_reserved_flag)
+ ar->flags |= EXT4_MB_DELALLOC_RESERVED;
+ else {
+ /* Without delayed allocation we need to verify
+ * there is enough free blocks to do block allocation
+ * and verify allocation doesn't exceed the quota limits.
*/
while (ar->len && ext4_claim_free_blocks(sbi, ar->len)) {
/* let others to free the space */
return 0;
}
reserv_blks = ar->len;
+ while (ar->len && vfs_dq_alloc_block(ar->inode, ar->len)) {
+ ar->flags |= EXT4_MB_HINT_NOPREALLOC;
+ ar->len--;
+ }
+ inquota = ar->len;
+ if (ar->len == 0) {
+ *errp = -EDQUOT;
+ goto out3;
+ }
}
- while (ar->len && DQUOT_ALLOC_BLOCK(ar->inode, ar->len)) {
- ar->flags |= EXT4_MB_HINT_NOPREALLOC;
- ar->len--;
- }
- if (ar->len == 0) {
- *errp = -EDQUOT;
- goto out3;
- }
- inquota = ar->len;
-
- if (EXT4_I(ar->inode)->i_delalloc_reserved_flag)
- ar->flags |= EXT4_MB_DELALLOC_RESERVED;
ac = kmem_cache_alloc(ext4_ac_cachep, GFP_NOFS);
if (!ac) {
out2:
kmem_cache_free(ext4_ac_cachep, ac);
out1:
- if (ar->len < inquota)
- DQUOT_FREE_BLOCK(ar->inode, inquota - ar->len);
+ if (inquota && ar->len < inquota)
+ vfs_dq_free_block(ar->inode, inquota - ar->len);
out3:
if (!ar->len) {
if (!EXT4_I(ar->inode)->i_delalloc_reserved_flag)
/* Initialize quotas before so that eventual writes go in
* separate transaction */
- DQUOT_INIT(dentry->d_inode);
+ vfs_dq_init(dentry->d_inode);
handle = ext4_journal_start(dir, EXT4_DELETE_TRANS_BLOCKS(dir->i_sb));
if (IS_ERR(handle))
return PTR_ERR(handle);
/* Initialize quotas before so that eventual writes go
* in separate transaction */
- DQUOT_INIT(dentry->d_inode);
+ vfs_dq_init(dentry->d_inode);
handle = ext4_journal_start(dir, EXT4_DELETE_TRANS_BLOCKS(dir->i_sb));
if (IS_ERR(handle))
return PTR_ERR(handle);
/* Initialize quotas before so that eventual writes go
* in separate transaction */
if (new_dentry->d_inode)
- DQUOT_INIT(new_dentry->d_inode);
+ vfs_dq_init(new_dentry->d_inode);
handle = ext4_journal_start(old_dir, 2 *
EXT4_DATA_TRANS_BLOCKS(old_dir->i_sb) +
EXT4_INDEX_EXTRA_TRANS_BLOCKS + 2);
#define QTYPE2NAME(t) ((t) == USRQUOTA ? "user" : "group")
#define QTYPE2MOPT(on, t) ((t) == USRQUOTA?((on)##USRJQUOTA):((on)##GRPJQUOTA))
-static int ext4_dquot_initialize(struct inode *inode, int type);
-static int ext4_dquot_drop(struct inode *inode);
static int ext4_write_dquot(struct dquot *dquot);
static int ext4_acquire_dquot(struct dquot *dquot);
static int ext4_release_dquot(struct dquot *dquot);
const char *data, size_t len, loff_t off);
static struct dquot_operations ext4_quota_operations = {
- .initialize = ext4_dquot_initialize,
- .drop = ext4_dquot_drop,
+ .initialize = dquot_initialize,
+ .drop = dquot_drop,
.alloc_space = dquot_alloc_space,
+ .reserve_space = dquot_reserve_space,
+ .claim_space = dquot_claim_space,
+ .release_rsv = dquot_release_reserved_space,
+ .get_reserved_space = ext4_get_reserved_space,
.alloc_inode = dquot_alloc_inode,
.free_space = dquot_free_space,
.free_inode = dquot_free_inode,
}
list_add(&EXT4_I(inode)->i_orphan, &EXT4_SB(sb)->s_orphan);
- DQUOT_INIT(inode);
+ vfs_dq_init(inode);
if (inode->i_nlink) {
printk(KERN_DEBUG
"%s: truncating inode %lu to %lld bytes\n",
* is locked for write. Otherwise the are possible deadlocks:
* Process 1 Process 2
* ext4_create() quota_sync()
- * jbd2_journal_start() write_dquot()
- * DQUOT_INIT() down(dqio_mutex)
+ * jbd2_journal_start() write_dquot()
+ * vfs_dq_init() down(dqio_mutex)
* down(dqio_mutex) jbd2_journal_start()
*
*/
return sb_dqopt(dquot->dq_sb)->files[dquot->dq_type];
}
-static int ext4_dquot_initialize(struct inode *inode, int type)
-{
- handle_t *handle;
- int ret, err;
-
- /* We may create quota structure so we need to reserve enough blocks */
- handle = ext4_journal_start(inode, 2*EXT4_QUOTA_INIT_BLOCKS(inode->i_sb));
- if (IS_ERR(handle))
- return PTR_ERR(handle);
- ret = dquot_initialize(inode, type);
- err = ext4_journal_stop(handle);
- if (!ret)
- ret = err;
- return ret;
-}
-
-static int ext4_dquot_drop(struct inode *inode)
-{
- handle_t *handle;
- int ret, err;
-
- /* We may delete quota structure so we need to reserve enough blocks */
- handle = ext4_journal_start(inode, 2*EXT4_QUOTA_DEL_BLOCKS(inode->i_sb));
- if (IS_ERR(handle)) {
- /*
- * We call dquot_drop() anyway to at least release references
- * to quota structures so that umount does not hang.
- */
- dquot_drop(inode);
- return PTR_ERR(handle);
- }
- ret = dquot_drop(inode);
- err = ext4_journal_stop(handle);
- if (!ret)
- ret = err;
- return ret;
-}
-
static int ext4_write_dquot(struct dquot *dquot)
{
int ret, err;
error = ext4_handle_dirty_metadata(handle, inode, bh);
if (IS_SYNC(inode))
ext4_handle_sync(handle);
- DQUOT_FREE_BLOCK(inode, 1);
+ vfs_dq_free_block(inode, 1);
ea_bdebug(bh, "refcount now=%d; releasing",
le32_to_cpu(BHDR(bh)->h_refcount));
if (ce)
/* The old block is released after updating
the inode. */
error = -EDQUOT;
- if (DQUOT_ALLOC_BLOCK(inode, 1))
+ if (vfs_dq_alloc_block(inode, 1))
goto cleanup;
error = ext4_journal_get_write_access(handle,
new_bh);
return error;
cleanup_dquot:
- DQUOT_FREE_BLOCK(inode, 1);
+ vfs_dq_free_block(inode, 1);
goto cleanup;
bad_block:
BUG_ON(!(inode->i_state & I_FREEING));
BUG_ON(inode->i_state & I_CLEAR);
inode_sync_wait(inode);
- DQUOT_DROP(inode);
+ vfs_dq_drop(inode);
if (inode->i_sb->s_op->clear_inode)
inode->i_sb->s_op->clear_inode(inode);
if (S_ISBLK(inode->i_mode) && inode->i_bdev)
if (op->delete_inode) {
void (*delete)(struct inode *) = op->delete_inode;
if (!is_bad_inode(inode))
- DQUOT_INIT(inode);
+ vfs_dq_init(inode);
/* Filesystems implementing their own
* s_op->delete_inode are required to call
* truncate_inode_pages and clear_inode()
if ((iattr->ia_valid & ATTR_UID && iattr->ia_uid != inode->i_uid) ||
(iattr->ia_valid & ATTR_GID && iattr->ia_gid != inode->i_gid)) {
- if (DQUOT_TRANSFER(inode, iattr))
+ if (vfs_dq_transfer(inode, iattr))
return -EDQUOT;
}
/*
* Free the inode from the quota allocation.
*/
- DQUOT_INIT(inode);
- DQUOT_FREE_INODE(inode);
- DQUOT_DROP(inode);
+ vfs_dq_init(inode);
+ vfs_dq_free_inode(inode);
+ vfs_dq_drop(inode);
}
clear_inode(inode);
* It's time to move the inline table to an external
* page and begin to build the xtree
*/
- if (DQUOT_ALLOC_BLOCK(ip, sbi->nbperpage))
+ if (vfs_dq_alloc_block(ip, sbi->nbperpage))
goto clean_up;
if (dbAlloc(ip, 0, sbi->nbperpage, &xaddr)) {
- DQUOT_FREE_BLOCK(ip, sbi->nbperpage);
+ vfs_dq_free_block(ip, sbi->nbperpage);
goto clean_up;
}
memcpy(&jfs_ip->i_dirtable, temp_table,
sizeof (temp_table));
dbFree(ip, xaddr, sbi->nbperpage);
- DQUOT_FREE_BLOCK(ip, sbi->nbperpage);
+ vfs_dq_free_block(ip, sbi->nbperpage);
goto clean_up;
}
ip->i_size = PSIZE;
n = xlen;
/* Allocate blocks to quota. */
- if (DQUOT_ALLOC_BLOCK(ip, n)) {
+ if (vfs_dq_alloc_block(ip, n)) {
rc = -EDQUOT;
goto extendOut;
}
/* Rollback quota allocation */
if (rc && quota_allocation)
- DQUOT_FREE_BLOCK(ip, quota_allocation);
+ vfs_dq_free_block(ip, quota_allocation);
dtSplitUp_Exit:
return -EIO;
/* Allocate blocks to quota. */
- if (DQUOT_ALLOC_BLOCK(ip, lengthPXD(pxd))) {
+ if (vfs_dq_alloc_block(ip, lengthPXD(pxd))) {
release_metapage(rmp);
return -EDQUOT;
}
rp = rmp->data;
/* Allocate blocks to quota. */
- if (DQUOT_ALLOC_BLOCK(ip, lengthPXD(pxd))) {
+ if (vfs_dq_alloc_block(ip, lengthPXD(pxd))) {
release_metapage(rmp);
return -EDQUOT;
}
xlen = lengthPXD(&fp->header.self);
/* Free quota allocation. */
- DQUOT_FREE_BLOCK(ip, xlen);
+ vfs_dq_free_block(ip, xlen);
/* free/invalidate its buffer page */
discard_metapage(fmp);
xlen = lengthPXD(&p->header.self);
/* Free quota allocation */
- DQUOT_FREE_BLOCK(ip, xlen);
+ vfs_dq_free_block(ip, xlen);
/* free/invalidate its buffer page */
discard_metapage(mp);
}
/* Allocate blocks to quota. */
- if (DQUOT_ALLOC_BLOCK(ip, nxlen)) {
+ if (vfs_dq_alloc_block(ip, nxlen)) {
dbFree(ip, nxaddr, (s64) nxlen);
mutex_unlock(&JFS_IP(ip)->commit_mutex);
return -EDQUOT;
*/
if (rc) {
dbFree(ip, nxaddr, nxlen);
- DQUOT_FREE_BLOCK(ip, nxlen);
+ vfs_dq_free_block(ip, nxlen);
mutex_unlock(&JFS_IP(ip)->commit_mutex);
return (rc);
}
goto exit;
/* Allocat blocks to quota. */
- if (DQUOT_ALLOC_BLOCK(ip, nxlen)) {
+ if (vfs_dq_alloc_block(ip, nxlen)) {
dbFree(ip, nxaddr, (s64) nxlen);
mutex_unlock(&JFS_IP(ip)->commit_mutex);
return -EDQUOT;
/* extend the extent */
if ((rc = xtExtend(0, ip, xoff + xlen, (int) nextend, 0))) {
dbFree(ip, xaddr + xlen, delta);
- DQUOT_FREE_BLOCK(ip, nxlen);
+ vfs_dq_free_block(ip, nxlen);
goto exit;
}
} else {
*/
if ((rc = xtTailgate(0, ip, xoff, (int) ntail, nxaddr, 0))) {
dbFree(ip, nxaddr, nxlen);
- DQUOT_FREE_BLOCK(ip, nxlen);
+ vfs_dq_free_block(ip, nxlen);
goto exit;
}
}
/*
* Allocate inode to quota.
*/
- if (DQUOT_ALLOC_INODE(inode)) {
+ if (vfs_dq_alloc_inode(inode)) {
rc = -EDQUOT;
goto fail_drop;
}
return inode;
fail_drop:
- DQUOT_DROP(inode);
+ vfs_dq_drop(inode);
inode->i_flags |= S_NOQUOTA;
fail_unlock:
inode->i_nlink = 0;
hint = addressXAD(xad) + lengthXAD(xad) - 1;
} else
hint = 0;
- if ((rc = DQUOT_ALLOC_BLOCK(ip, xlen)))
+ if ((rc = vfs_dq_alloc_block(ip, xlen)))
goto out;
if ((rc = dbAlloc(ip, hint, (s64) xlen, &xaddr))) {
- DQUOT_FREE_BLOCK(ip, xlen);
+ vfs_dq_free_block(ip, xlen);
goto out;
}
}
/* undo data extent allocation */
if (*xaddrp == 0) {
dbFree(ip, xaddr, (s64) xlen);
- DQUOT_FREE_BLOCK(ip, xlen);
+ vfs_dq_free_block(ip, xlen);
}
return rc;
}
rbn = addressPXD(pxd);
/* Allocate blocks to quota. */
- if (DQUOT_ALLOC_BLOCK(ip, lengthPXD(pxd))) {
+ if (vfs_dq_alloc_block(ip, lengthPXD(pxd))) {
rc = -EDQUOT;
goto clean_up;
}
/* Rollback quota allocation. */
if (quota_allocation)
- DQUOT_FREE_BLOCK(ip, quota_allocation);
+ vfs_dq_free_block(ip, quota_allocation);
return (rc);
}
return -EIO;
/* Allocate blocks to quota. */
- if (DQUOT_ALLOC_BLOCK(ip, lengthPXD(pxd))) {
+ if (vfs_dq_alloc_block(ip, lengthPXD(pxd))) {
release_metapage(rmp);
return -EDQUOT;
}
ip->i_size = newsize;
/* update quota allocation to reflect freed blocks */
- DQUOT_FREE_BLOCK(ip, nfreed);
+ vfs_dq_free_block(ip, nfreed);
/*
* free tlock of invalidated pages
jfs_info("jfs_rmdir: dip:0x%p name:%s", dip, dentry->d_name.name);
/* Init inode for quota operations. */
- DQUOT_INIT(ip);
+ vfs_dq_init(ip);
/* directory must be empty to be removed */
if (!dtEmpty(ip)) {
jfs_info("jfs_unlink: dip:0x%p name:%s", dip, dentry->d_name.name);
/* Init inode for quota operations. */
- DQUOT_INIT(ip);
+ vfs_dq_init(ip);
if ((rc = get_UCSname(&dname, dentry)))
goto out;
} else if (new_ip) {
IWRITE_LOCK(new_ip, RDWRLOCK_NORMAL);
/* Init inode for quota operations. */
- DQUOT_INIT(new_ip);
+ vfs_dq_init(new_ip);
}
/*
nblocks = (size + (sb->s_blocksize - 1)) >> sb->s_blocksize_bits;
/* Allocate new blocks to quota. */
- if (DQUOT_ALLOC_BLOCK(ip, nblocks)) {
+ if (vfs_dq_alloc_block(ip, nblocks)) {
return -EDQUOT;
}
rc = dbAlloc(ip, INOHINT(ip), nblocks, &blkno);
if (rc) {
/*Rollback quota allocation. */
- DQUOT_FREE_BLOCK(ip, nblocks);
+ vfs_dq_free_block(ip, nblocks);
return rc;
}
failed:
/* Rollback quota allocation. */
- DQUOT_FREE_BLOCK(ip, nblocks);
+ vfs_dq_free_block(ip, nblocks);
dbFree(ip, blkno, nblocks);
return rc;
if (blocks_needed > current_blocks) {
/* Allocate new blocks to quota. */
- if (DQUOT_ALLOC_BLOCK(inode, blocks_needed))
+ if (vfs_dq_alloc_block(inode, blocks_needed))
return -EDQUOT;
quota_allocation = blocks_needed;
clean_up:
/* Rollback quota allocation */
if (quota_allocation)
- DQUOT_FREE_BLOCK(inode, quota_allocation);
+ vfs_dq_free_block(inode, quota_allocation);
return (rc);
}
/* If old blocks exist, they must be removed from quota allocation. */
if (old_blocks)
- DQUOT_FREE_BLOCK(inode, old_blocks);
+ vfs_dq_free_block(inode, old_blocks);
inode->i_ctime = CURRENT_TIME;
error = security_inode_create(dir, dentry, mode);
if (error)
return error;
- DQUOT_INIT(dir);
+ vfs_dq_init(dir);
error = dir->i_op->create(dir, dentry, mode, nd);
if (!error)
fsnotify_create(dir, dentry);
error = security_path_truncate(path, 0,
ATTR_MTIME|ATTR_CTIME|ATTR_OPEN);
if (!error) {
- DQUOT_INIT(inode);
+ vfs_dq_init(inode);
error = do_truncate(dentry, 0,
ATTR_MTIME|ATTR_CTIME|ATTR_OPEN,
return error;
} else
if (flag & FMODE_WRITE)
- DQUOT_INIT(inode);
+ vfs_dq_init(inode);
return 0;
}
if (error)
return error;
- DQUOT_INIT(dir);
+ vfs_dq_init(dir);
error = dir->i_op->mknod(dir, dentry, mode, dev);
if (!error)
fsnotify_create(dir, dentry);
if (error)
return error;
- DQUOT_INIT(dir);
+ vfs_dq_init(dir);
error = dir->i_op->mkdir(dir, dentry, mode);
if (!error)
fsnotify_mkdir(dir, dentry);
if (!dir->i_op->rmdir)
return -EPERM;
- DQUOT_INIT(dir);
+ vfs_dq_init(dir);
mutex_lock(&dentry->d_inode->i_mutex);
dentry_unhash(dentry);
if (!dir->i_op->unlink)
return -EPERM;
- DQUOT_INIT(dir);
+ vfs_dq_init(dir);
mutex_lock(&dentry->d_inode->i_mutex);
if (d_mountpoint(dentry))
if (error)
return error;
- DQUOT_INIT(dir);
+ vfs_dq_init(dir);
error = dir->i_op->symlink(dir, dentry, oldname);
if (!error)
fsnotify_create(dir, dentry);
return error;
mutex_lock(&inode->i_mutex);
- DQUOT_INIT(dir);
+ vfs_dq_init(dir);
error = dir->i_op->link(old_dentry, dir, new_dentry);
mutex_unlock(&inode->i_mutex);
if (!error)
if (!old_dir->i_op->rename)
return -EPERM;
- DQUOT_INIT(old_dir);
- DQUOT_INIT(new_dir);
+ vfs_dq_init(old_dir);
+ vfs_dq_init(new_dir);
old_name = fsnotify_oldname_init(old_dentry->d_name.name);
put_write_access(inode);
goto out_nfserr;
}
- DQUOT_INIT(inode);
+ vfs_dq_init(inode);
}
/* sanitize the mode change */
else
flags = O_WRONLY|O_LARGEFILE;
- DQUOT_INIT(inode);
+ vfs_dq_init(inode);
}
*filp = dentry_open(dget(dentry), mntget(fhp->fh_export->ex_path.mnt),
flags, cred);
if (!error)
error = security_path_truncate(&path, length, 0);
if (!error) {
- DQUOT_INIT(inode);
+ vfs_dq_init(inode);
error = do_truncate(path.dentry, length, 0, NULL);
}
--- /dev/null
+#
+# Quota configuration
+#
+
+config QUOTA
+ bool "Quota support"
+ help
+ If you say Y here, you will be able to set per user limits for disk
+ usage (also called disk quotas). Currently, it works for the
+ ext2, ext3, and reiserfs file system. ext3 also supports journalled
+ quotas for which you don't need to run quotacheck(8) after an unclean
+ shutdown.
+ For further details, read the Quota mini-HOWTO, available from
+ <http://www.tldp.org/docs.html#howto>, or the documentation provided
+ with the quota tools. Probably the quota support is only useful for
+ multi user systems. If unsure, say N.
+
+config QUOTA_NETLINK_INTERFACE
+ bool "Report quota messages through netlink interface"
+ depends on QUOTA && NET
+ help
+ If you say Y here, quota warnings (about exceeding softlimit, reaching
+ hardlimit, etc.) will be reported through netlink interface. If unsure,
+ say Y.
+
+config PRINT_QUOTA_WARNING
+ bool "Print quota warnings to console (OBSOLETE)"
+ depends on QUOTA
+ default y
+ help
+ If you say Y here, quota warnings (about exceeding softlimit, reaching
+ hardlimit, etc.) will be printed to the process' controlling terminal.
+ Note that this behavior is currently deprecated and may go away in
+ future. Please use notification via netlink socket instead.
+
+# Generic support for tree structured quota files. Selected when needed.
+config QUOTA_TREE
+ tristate
+
+config QFMT_V1
+ tristate "Old quota format support"
+ depends on QUOTA
+ help
+ This quota format was (is) used by kernels earlier than 2.4.22. If
+ you have quota working and you don't want to convert to new quota
+ format say Y here.
+
+config QFMT_V2
+ tristate "Quota format v2 support"
+ depends on QUOTA
+ select QUOTA_TREE
+ help
+ This quota format allows using quotas with 32-bit UIDs/GIDs. If you
+ need this functionality say Y here.
+
+config QUOTACTL
+ bool
+ depends on XFS_QUOTA || QUOTA
+ default y
--- /dev/null
+#
+# Makefile for the Linux filesystems.
+#
+# 14 Sep 2000, Christoph Hellwig <hch@infradead.org>
+# Rewritten to use lists instead of if-statements.
+#
+
+obj-y :=
+
+obj-$(CONFIG_QUOTA) += dquot.o
+obj-$(CONFIG_QFMT_V1) += quota_v1.o
+obj-$(CONFIG_QFMT_V2) += quota_v2.o
+obj-$(CONFIG_QUOTA_TREE) += quota_tree.o
+obj-$(CONFIG_QUOTACTL) += quota.o
* i_mutex on quota files is special (it's below dqio_mutex)
*/
-static DEFINE_SPINLOCK(dq_list_lock);
-static DEFINE_SPINLOCK(dq_state_lock);
-DEFINE_SPINLOCK(dq_data_lock);
+static __cacheline_aligned_in_smp DEFINE_SPINLOCK(dq_list_lock);
+static __cacheline_aligned_in_smp DEFINE_SPINLOCK(dq_state_lock);
+__cacheline_aligned_in_smp DEFINE_SPINLOCK(dq_data_lock);
+EXPORT_SYMBOL(dq_data_lock);
static char *quotatypes[] = INITQFNAMES;
static struct quota_format_type *quota_formats; /* List of registered formats */
spin_unlock(&dq_list_lock);
return 0;
}
+EXPORT_SYMBOL(register_quota_format);
void unregister_quota_format(struct quota_format_type *fmt)
{
struct quota_format_type **actqf;
spin_lock(&dq_list_lock);
- for (actqf = "a_formats; *actqf && *actqf != fmt; actqf = &(*actqf)->qf_next);
+ for (actqf = "a_formats; *actqf && *actqf != fmt;
+ actqf = &(*actqf)->qf_next)
+ ;
if (*actqf)
*actqf = (*actqf)->qf_next;
spin_unlock(&dq_list_lock);
}
+EXPORT_SYMBOL(unregister_quota_format);
static struct quota_format_type *find_quota_format(int id)
{
struct quota_format_type *actqf;
spin_lock(&dq_list_lock);
- for (actqf = quota_formats; actqf && actqf->qf_fmt_id != id; actqf = actqf->qf_next);
+ for (actqf = quota_formats; actqf && actqf->qf_fmt_id != id;
+ actqf = actqf->qf_next)
+ ;
if (!actqf || !try_module_get(actqf->qf_owner)) {
int qm;
spin_unlock(&dq_list_lock);
- for (qm = 0; module_names[qm].qm_fmt_id && module_names[qm].qm_fmt_id != id; qm++);
- if (!module_names[qm].qm_fmt_id || request_module(module_names[qm].qm_mod_name))
+ for (qm = 0; module_names[qm].qm_fmt_id &&
+ module_names[qm].qm_fmt_id != id; qm++)
+ ;
+ if (!module_names[qm].qm_fmt_id ||
+ request_module(module_names[qm].qm_mod_name))
return NULL;
spin_lock(&dq_list_lock);
- for (actqf = quota_formats; actqf && actqf->qf_fmt_id != id; actqf = actqf->qf_next);
+ for (actqf = quota_formats; actqf && actqf->qf_fmt_id != id;
+ actqf = actqf->qf_next)
+ ;
if (actqf && !try_module_get(actqf->qf_owner))
actqf = NULL;
}
static struct hlist_head *dquot_hash;
struct dqstats dqstats;
+EXPORT_SYMBOL(dqstats);
static inline unsigned int
hashfn(const struct super_block *sb, unsigned int id, int type)
*/
static inline void insert_dquot_hash(struct dquot *dquot)
{
- struct hlist_head *head = dquot_hash + hashfn(dquot->dq_sb, dquot->dq_id, dquot->dq_type);
+ struct hlist_head *head;
+ head = dquot_hash + hashfn(dquot->dq_sb, dquot->dq_id, dquot->dq_type);
hlist_add_head(&dquot->dq_hash, head);
}
hlist_del_init(&dquot->dq_hash);
}
-static inline struct dquot *find_dquot(unsigned int hashent, struct super_block *sb, unsigned int id, int type)
+static struct dquot *find_dquot(unsigned int hashent, struct super_block *sb,
+ unsigned int id, int type)
{
struct hlist_node *node;
struct dquot *dquot;
hlist_for_each (node, dquot_hash+hashent) {
dquot = hlist_entry(node, struct dquot, dq_hash);
- if (dquot->dq_sb == sb && dquot->dq_id == id && dquot->dq_type == type)
+ if (dquot->dq_sb == sb && dquot->dq_id == id &&
+ dquot->dq_type == type)
return dquot;
}
- return NODQUOT;
+ return NULL;
}
/* Add a dquot to the tail of the free list */
spin_unlock(&dq_list_lock);
return 0;
}
+EXPORT_SYMBOL(dquot_mark_dquot_dirty);
/* This function needs dq_list_lock */
static inline int clear_dquot_dirty(struct dquot *dquot)
if (!test_bit(DQ_ACTIVE_B, &dquot->dq_flags) && !dquot->dq_off) {
ret = dqopt->ops[dquot->dq_type]->commit_dqblk(dquot);
/* Write the info if needed */
- if (info_dirty(&dqopt->info[dquot->dq_type]))
- ret2 = dqopt->ops[dquot->dq_type]->write_file_info(dquot->dq_sb, dquot->dq_type);
+ if (info_dirty(&dqopt->info[dquot->dq_type])) {
+ ret2 = dqopt->ops[dquot->dq_type]->write_file_info(
+ dquot->dq_sb, dquot->dq_type);
+ }
if (ret < 0)
goto out_iolock;
if (ret2 < 0) {
mutex_unlock(&dquot->dq_lock);
return ret;
}
+EXPORT_SYMBOL(dquot_acquire);
/*
* Write dquot to disk
* => we have better not writing it */
if (test_bit(DQ_ACTIVE_B, &dquot->dq_flags)) {
ret = dqopt->ops[dquot->dq_type]->commit_dqblk(dquot);
- if (info_dirty(&dqopt->info[dquot->dq_type]))
- ret2 = dqopt->ops[dquot->dq_type]->write_file_info(dquot->dq_sb, dquot->dq_type);
+ if (info_dirty(&dqopt->info[dquot->dq_type])) {
+ ret2 = dqopt->ops[dquot->dq_type]->write_file_info(
+ dquot->dq_sb, dquot->dq_type);
+ }
if (ret >= 0)
ret = ret2;
}
mutex_unlock(&dqopt->dqio_mutex);
return ret;
}
+EXPORT_SYMBOL(dquot_commit);
/*
* Release dquot
if (dqopt->ops[dquot->dq_type]->release_dqblk) {
ret = dqopt->ops[dquot->dq_type]->release_dqblk(dquot);
/* Write the info */
- if (info_dirty(&dqopt->info[dquot->dq_type]))
- ret2 = dqopt->ops[dquot->dq_type]->write_file_info(dquot->dq_sb, dquot->dq_type);
+ if (info_dirty(&dqopt->info[dquot->dq_type])) {
+ ret2 = dqopt->ops[dquot->dq_type]->write_file_info(
+ dquot->dq_sb, dquot->dq_type);
+ }
if (ret >= 0)
ret = ret2;
}
mutex_unlock(&dquot->dq_lock);
return ret;
}
+EXPORT_SYMBOL(dquot_release);
void dquot_destroy(struct dquot *dquot)
{
mutex_unlock(&sb_dqopt(sb)->dqonoff_mutex);
return ret;
}
+EXPORT_SYMBOL(dquot_scan_active);
int vfs_quota_sync(struct super_block *sb, int type)
{
spin_lock(&dq_list_lock);
dirty = &dqopt->info[cnt].dqi_dirty_list;
while (!list_empty(dirty)) {
- dquot = list_first_entry(dirty, struct dquot, dq_dirty);
+ dquot = list_first_entry(dirty, struct dquot,
+ dq_dirty);
/* Dirty and inactive can be only bad dquot... */
if (!test_bit(DQ_ACTIVE_B, &dquot->dq_flags)) {
clear_dquot_dirty(dquot);
return 0;
}
+EXPORT_SYMBOL(vfs_quota_sync);
/* Free unused dquots from cache */
static void prune_dqcache(int count)
put_dquot_last(dquot);
spin_unlock(&dq_list_lock);
}
+EXPORT_SYMBOL(dqput);
struct dquot *dquot_alloc(struct super_block *sb, int type)
{
dquot = sb->dq_op->alloc_dquot(sb, type);
if(!dquot)
- return NODQUOT;
+ return NULL;
mutex_init(&dquot->dq_lock);
INIT_LIST_HEAD(&dquot->dq_free);
struct dquot *dqget(struct super_block *sb, unsigned int id, int type)
{
unsigned int hashent = hashfn(sb, id, type);
- struct dquot *dquot = NODQUOT, *empty = NODQUOT;
+ struct dquot *dquot = NULL, *empty = NULL;
if (!sb_has_quota_active(sb, type))
- return NODQUOT;
+ return NULL;
we_slept:
spin_lock(&dq_list_lock);
spin_lock(&dq_state_lock);
}
spin_unlock(&dq_state_lock);
- if ((dquot = find_dquot(hashent, sb, id, type)) == NODQUOT) {
- if (empty == NODQUOT) {
+ dquot = find_dquot(hashent, sb, id, type);
+ if (!dquot) {
+ if (!empty) {
spin_unlock(&dq_list_lock);
- if ((empty = get_empty_dquot(sb, type)) == NODQUOT)
+ empty = get_empty_dquot(sb, type);
+ if (!empty)
schedule(); /* Try to wait for a moment... */
goto we_slept;
}
dquot = empty;
- empty = NODQUOT;
+ empty = NULL;
dquot->dq_id = id;
/* all dquots go on the inuse_list */
put_inuse(dquot);
dqstats.lookups++;
spin_unlock(&dq_list_lock);
}
- /* Wait for dq_lock - after this we know that either dquot_release() is already
- * finished or it will be canceled due to dq_count > 1 test */
+ /* Wait for dq_lock - after this we know that either dquot_release() is
+ * already finished or it will be canceled due to dq_count > 1 test */
wait_on_dquot(dquot);
- /* Read the dquot and instantiate it (everything done only if needed) */
- if (!test_bit(DQ_ACTIVE_B, &dquot->dq_flags) && sb->dq_op->acquire_dquot(dquot) < 0) {
+ /* Read the dquot / allocate space in quota file */
+ if (!test_bit(DQ_ACTIVE_B, &dquot->dq_flags) &&
+ sb->dq_op->acquire_dquot(dquot) < 0) {
dqput(dquot);
- dquot = NODQUOT;
+ dquot = NULL;
goto out;
}
#ifdef __DQUOT_PARANOIA
return dquot;
}
+EXPORT_SYMBOL(dqget);
static int dqinit_needed(struct inode *inode, int type)
{
if (IS_NOQUOTA(inode))
return 0;
if (type != -1)
- return inode->i_dquot[type] == NODQUOT;
+ return !inode->i_dquot[type];
for (cnt = 0; cnt < MAXQUOTAS; cnt++)
- if (inode->i_dquot[cnt] == NODQUOT)
+ if (!inode->i_dquot[cnt])
return 1;
return 0;
}
iput(old_inode);
}
-/* Return 0 if dqput() won't block (note that 1 doesn't necessarily mean blocking) */
+/*
+ * Return 0 if dqput() won't block.
+ * (note that 1 doesn't necessarily mean blocking)
+ */
static inline int dqput_blocks(struct dquot *dquot)
{
if (atomic_read(&dquot->dq_count) <= 1)
return 0;
}
-/* Remove references to dquots from inode - add dquot to list for freeing if needed */
-/* We can't race with anybody because we hold dqptr_sem for writing... */
+/*
+ * Remove references to dquots from inode and add dquot to list for freeing
+ * if we have the last referece to dquot
+ * We can't race with anybody because we hold dqptr_sem for writing...
+ */
static int remove_inode_dquot_ref(struct inode *inode, int type,
struct list_head *tofree_head)
{
struct dquot *dquot = inode->i_dquot[type];
- inode->i_dquot[type] = NODQUOT;
- if (dquot != NODQUOT) {
+ inode->i_dquot[type] = NULL;
+ if (dquot) {
if (dqput_blocks(dquot)) {
#ifdef __DQUOT_PARANOIA
if (atomic_read(&dquot->dq_count) != 1)
printk(KERN_WARNING "VFS: Adding dquot with dq_count %d to dispose list.\n", atomic_read(&dquot->dq_count));
#endif
spin_lock(&dq_list_lock);
- list_add(&dquot->dq_free, tofree_head); /* As dquot must have currently users it can't be on the free list... */
+ /* As dquot must have currently users it can't be on
+ * the free list... */
+ list_add(&dquot->dq_free, tofree_head);
spin_unlock(&dq_list_lock);
return 1;
}
return 0;
}
-/* Free list of dquots - called from inode.c */
-/* dquots are removed from inodes, no new references can be got so we are the only ones holding reference */
+/*
+ * Free list of dquots
+ * Dquots are removed from inodes and no new references can be got so we are
+ * the only ones holding reference
+ */
static void put_dquot_list(struct list_head *tofree_head)
{
struct list_head *act_head;
struct dquot *dquot;
act_head = tofree_head->next;
- /* So now we have dquots on the list... Just free them */
while (act_head != tofree_head) {
dquot = list_entry(act_head, struct dquot, dq_free);
act_head = act_head->next;
- list_del_init(&dquot->dq_free); /* Remove dquot from the list so we won't have problems... */
+ /* Remove dquot from the list so we won't have problems... */
+ list_del_init(&dquot->dq_free);
dqput(dquot);
}
}
dquot->dq_dqb.dqb_curspace += number;
}
-static inline void dquot_decr_inodes(struct dquot *dquot, qsize_t number)
+static inline void dquot_resv_space(struct dquot *dquot, qsize_t number)
+{
+ dquot->dq_dqb.dqb_rsvspace += number;
+}
+
+/*
+ * Claim reserved quota space
+ */
+static void dquot_claim_reserved_space(struct dquot *dquot,
+ qsize_t number)
+{
+ WARN_ON(dquot->dq_dqb.dqb_rsvspace < number);
+ dquot->dq_dqb.dqb_curspace += number;
+ dquot->dq_dqb.dqb_rsvspace -= number;
+}
+
+static inline
+void dquot_free_reserved_space(struct dquot *dquot, qsize_t number)
+{
+ dquot->dq_dqb.dqb_rsvspace -= number;
+}
+
+static void dquot_decr_inodes(struct dquot *dquot, qsize_t number)
{
if (sb_dqopt(dquot->dq_sb)->flags & DQUOT_NEGATIVE_USAGE ||
dquot->dq_dqb.dqb_curinodes >= number)
clear_bit(DQ_INODES_B, &dquot->dq_flags);
}
-static inline void dquot_decr_space(struct dquot *dquot, qsize_t number)
+static void dquot_decr_space(struct dquot *dquot, qsize_t number)
{
if (sb_dqopt(dquot->dq_sb)->flags & DQUOT_NEGATIVE_USAGE ||
dquot->dq_dqb.dqb_curspace >= number)
#ifdef CONFIG_PRINT_QUOTA_WARNING
static int flag_print_warnings = 1;
-static inline int need_print_warning(struct dquot *dquot)
+static int need_print_warning(struct dquot *dquot)
{
if (!flag_print_warnings)
return 0;
kfree_skb(skb);
}
#endif
-
-static inline void flush_warnings(struct dquot * const *dquots, char *warntype)
+/*
+ * Write warnings to the console and send warning messages over netlink.
+ *
+ * Note that this function can sleep.
+ */
+static void flush_warnings(struct dquot *const *dquots, char *warntype)
{
int i;
for (i = 0; i < MAXQUOTAS; i++)
- if (dquots[i] != NODQUOT && warntype[i] != QUOTA_NL_NOWARN &&
+ if (dquots[i] && warntype[i] != QUOTA_NL_NOWARN &&
!warning_issued(dquots[i], warntype[i])) {
#ifdef CONFIG_PRINT_QUOTA_WARNING
print_warning(dquots[i], warntype[i]);
}
}
-static inline char ignore_hardlimit(struct dquot *dquot)
+static int ignore_hardlimit(struct dquot *dquot)
{
struct mem_dqinfo *info = &sb_dqopt(dquot->dq_sb)->info[dquot->dq_type];
return capable(CAP_SYS_RESOURCE) &&
- (info->dqi_format->qf_fmt_id != QFMT_VFS_OLD || !(info->dqi_flags & V1_DQF_RSQUASH));
+ (info->dqi_format->qf_fmt_id != QFMT_VFS_OLD ||
+ !(info->dqi_flags & V1_DQF_RSQUASH));
}
/* needs dq_data_lock */
static int check_idq(struct dquot *dquot, qsize_t inodes, char *warntype)
{
+ qsize_t newinodes = dquot->dq_dqb.dqb_curinodes + inodes;
+
*warntype = QUOTA_NL_NOWARN;
if (!sb_has_quota_limits_enabled(dquot->dq_sb, dquot->dq_type) ||
test_bit(DQ_FAKE_B, &dquot->dq_flags))
return QUOTA_OK;
if (dquot->dq_dqb.dqb_ihardlimit &&
- (dquot->dq_dqb.dqb_curinodes + inodes) > dquot->dq_dqb.dqb_ihardlimit &&
+ newinodes > dquot->dq_dqb.dqb_ihardlimit &&
!ignore_hardlimit(dquot)) {
*warntype = QUOTA_NL_IHARDWARN;
return NO_QUOTA;
}
if (dquot->dq_dqb.dqb_isoftlimit &&
- (dquot->dq_dqb.dqb_curinodes + inodes) > dquot->dq_dqb.dqb_isoftlimit &&
- dquot->dq_dqb.dqb_itime && get_seconds() >= dquot->dq_dqb.dqb_itime &&
+ newinodes > dquot->dq_dqb.dqb_isoftlimit &&
+ dquot->dq_dqb.dqb_itime &&
+ get_seconds() >= dquot->dq_dqb.dqb_itime &&
!ignore_hardlimit(dquot)) {
*warntype = QUOTA_NL_ISOFTLONGWARN;
return NO_QUOTA;
}
if (dquot->dq_dqb.dqb_isoftlimit &&
- (dquot->dq_dqb.dqb_curinodes + inodes) > dquot->dq_dqb.dqb_isoftlimit &&
+ newinodes > dquot->dq_dqb.dqb_isoftlimit &&
dquot->dq_dqb.dqb_itime == 0) {
*warntype = QUOTA_NL_ISOFTWARN;
- dquot->dq_dqb.dqb_itime = get_seconds() + sb_dqopt(dquot->dq_sb)->info[dquot->dq_type].dqi_igrace;
+ dquot->dq_dqb.dqb_itime = get_seconds() +
+ sb_dqopt(dquot->dq_sb)->info[dquot->dq_type].dqi_igrace;
}
return QUOTA_OK;
/* needs dq_data_lock */
static int check_bdq(struct dquot *dquot, qsize_t space, int prealloc, char *warntype)
{
+ qsize_t tspace;
+ struct super_block *sb = dquot->dq_sb;
+
*warntype = QUOTA_NL_NOWARN;
- if (!sb_has_quota_limits_enabled(dquot->dq_sb, dquot->dq_type) ||
+ if (!sb_has_quota_limits_enabled(sb, dquot->dq_type) ||
test_bit(DQ_FAKE_B, &dquot->dq_flags))
return QUOTA_OK;
+ tspace = dquot->dq_dqb.dqb_curspace + dquot->dq_dqb.dqb_rsvspace
+ + space;
+
if (dquot->dq_dqb.dqb_bhardlimit &&
- dquot->dq_dqb.dqb_curspace + space > dquot->dq_dqb.dqb_bhardlimit &&
+ tspace > dquot->dq_dqb.dqb_bhardlimit &&
!ignore_hardlimit(dquot)) {
if (!prealloc)
*warntype = QUOTA_NL_BHARDWARN;
}
if (dquot->dq_dqb.dqb_bsoftlimit &&
- dquot->dq_dqb.dqb_curspace + space > dquot->dq_dqb.dqb_bsoftlimit &&
- dquot->dq_dqb.dqb_btime && get_seconds() >= dquot->dq_dqb.dqb_btime &&
+ tspace > dquot->dq_dqb.dqb_bsoftlimit &&
+ dquot->dq_dqb.dqb_btime &&
+ get_seconds() >= dquot->dq_dqb.dqb_btime &&
!ignore_hardlimit(dquot)) {
if (!prealloc)
*warntype = QUOTA_NL_BSOFTLONGWARN;
}
if (dquot->dq_dqb.dqb_bsoftlimit &&
- dquot->dq_dqb.dqb_curspace + space > dquot->dq_dqb.dqb_bsoftlimit &&
+ tspace > dquot->dq_dqb.dqb_bsoftlimit &&
dquot->dq_dqb.dqb_btime == 0) {
if (!prealloc) {
*warntype = QUOTA_NL_BSOFTWARN;
- dquot->dq_dqb.dqb_btime = get_seconds() + sb_dqopt(dquot->dq_sb)->info[dquot->dq_type].dqi_bgrace;
+ dquot->dq_dqb.dqb_btime = get_seconds() +
+ sb_dqopt(sb)->info[dquot->dq_type].dqi_bgrace;
}
else
/*
static int info_idq_free(struct dquot *dquot, qsize_t inodes)
{
+ qsize_t newinodes;
+
if (test_bit(DQ_FAKE_B, &dquot->dq_flags) ||
dquot->dq_dqb.dqb_curinodes <= dquot->dq_dqb.dqb_isoftlimit ||
!sb_has_quota_limits_enabled(dquot->dq_sb, dquot->dq_type))
return QUOTA_NL_NOWARN;
- if (dquot->dq_dqb.dqb_curinodes - inodes <= dquot->dq_dqb.dqb_isoftlimit)
+ newinodes = dquot->dq_dqb.dqb_curinodes - inodes;
+ if (newinodes <= dquot->dq_dqb.dqb_isoftlimit)
return QUOTA_NL_ISOFTBELOW;
if (dquot->dq_dqb.dqb_curinodes >= dquot->dq_dqb.dqb_ihardlimit &&
- dquot->dq_dqb.dqb_curinodes - inodes < dquot->dq_dqb.dqb_ihardlimit)
+ newinodes < dquot->dq_dqb.dqb_ihardlimit)
return QUOTA_NL_IHARDBELOW;
return QUOTA_NL_NOWARN;
}
{
unsigned int id = 0;
int cnt, ret = 0;
- struct dquot *got[MAXQUOTAS] = { NODQUOT, NODQUOT };
+ struct dquot *got[MAXQUOTAS] = { NULL, NULL };
struct super_block *sb = inode->i_sb;
/* First test before acquiring mutex - solves deadlocks when we
/* Avoid races with quotaoff() */
if (!sb_has_quota_active(sb, cnt))
continue;
- if (inode->i_dquot[cnt] == NODQUOT) {
+ if (!inode->i_dquot[cnt]) {
inode->i_dquot[cnt] = got[cnt];
- got[cnt] = NODQUOT;
+ got[cnt] = NULL;
}
}
out_err:
dqput(got[cnt]);
return ret;
}
+EXPORT_SYMBOL(dquot_initialize);
/*
* Release all quotas referenced by inode
down_write(&sb_dqopt(inode->i_sb)->dqptr_sem);
for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
put[cnt] = inode->i_dquot[cnt];
- inode->i_dquot[cnt] = NODQUOT;
+ inode->i_dquot[cnt] = NULL;
}
up_write(&sb_dqopt(inode->i_sb)->dqptr_sem);
dqput(put[cnt]);
return 0;
}
+EXPORT_SYMBOL(dquot_drop);
/* Wrapper to remove references to quota structures from inode */
void vfs_dq_drop(struct inode *inode)
* must assure that nobody can come after the DQUOT_DROP and
* add quota pointers back anyway */
for (cnt = 0; cnt < MAXQUOTAS; cnt++)
- if (inode->i_dquot[cnt] != NODQUOT)
+ if (inode->i_dquot[cnt])
break;
if (cnt < MAXQUOTAS)
inode->i_sb->dq_op->drop(inode);
}
}
+EXPORT_SYMBOL(vfs_dq_drop);
/*
* Following four functions update i_blocks+i_bytes fields and
/*
* This operation can block, but only after everything is updated
*/
-int dquot_alloc_space(struct inode *inode, qsize_t number, int warn)
+int __dquot_alloc_space(struct inode *inode, qsize_t number,
+ int warn, int reserve)
{
- int cnt, ret = NO_QUOTA;
+ int cnt, ret = QUOTA_OK;
char warntype[MAXQUOTAS];
- /* First test before acquiring mutex - solves deadlocks when we
- * re-enter the quota code and are already holding the mutex */
- if (IS_NOQUOTA(inode)) {
-out_add:
- inode_add_bytes(inode, number);
- return QUOTA_OK;
- }
for (cnt = 0; cnt < MAXQUOTAS; cnt++)
warntype[cnt] = QUOTA_NL_NOWARN;
- down_read(&sb_dqopt(inode->i_sb)->dqptr_sem);
- if (IS_NOQUOTA(inode)) { /* Now we can do reliable test... */
- up_read(&sb_dqopt(inode->i_sb)->dqptr_sem);
- goto out_add;
- }
spin_lock(&dq_data_lock);
for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
- if (inode->i_dquot[cnt] == NODQUOT)
+ if (!inode->i_dquot[cnt])
continue;
- if (check_bdq(inode->i_dquot[cnt], number, warn, warntype+cnt) == NO_QUOTA)
- goto warn_put_all;
+ if (check_bdq(inode->i_dquot[cnt], number, warn, warntype+cnt)
+ == NO_QUOTA) {
+ ret = NO_QUOTA;
+ goto out_unlock;
+ }
}
for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
- if (inode->i_dquot[cnt] == NODQUOT)
+ if (!inode->i_dquot[cnt])
continue;
- dquot_incr_space(inode->i_dquot[cnt], number);
+ if (reserve)
+ dquot_resv_space(inode->i_dquot[cnt], number);
+ else
+ dquot_incr_space(inode->i_dquot[cnt], number);
}
- inode_add_bytes(inode, number);
- ret = QUOTA_OK;
-warn_put_all:
+ if (!reserve)
+ inode_add_bytes(inode, number);
+out_unlock:
spin_unlock(&dq_data_lock);
- if (ret == QUOTA_OK)
- /* Dirtify all the dquots - this can block when journalling */
- for (cnt = 0; cnt < MAXQUOTAS; cnt++)
- if (inode->i_dquot[cnt])
- mark_dquot_dirty(inode->i_dquot[cnt]);
flush_warnings(inode->i_dquot, warntype);
+ return ret;
+}
+
+int dquot_alloc_space(struct inode *inode, qsize_t number, int warn)
+{
+ int cnt, ret = QUOTA_OK;
+
+ /*
+ * First test before acquiring mutex - solves deadlocks when we
+ * re-enter the quota code and are already holding the mutex
+ */
+ if (IS_NOQUOTA(inode)) {
+ inode_add_bytes(inode, number);
+ goto out;
+ }
+
+ down_read(&sb_dqopt(inode->i_sb)->dqptr_sem);
+ if (IS_NOQUOTA(inode)) {
+ inode_add_bytes(inode, number);
+ goto out_unlock;
+ }
+
+ ret = __dquot_alloc_space(inode, number, warn, 0);
+ if (ret == NO_QUOTA)
+ goto out_unlock;
+
+ /* Dirtify all the dquots - this can block when journalling */
+ for (cnt = 0; cnt < MAXQUOTAS; cnt++)
+ if (inode->i_dquot[cnt])
+ mark_dquot_dirty(inode->i_dquot[cnt]);
+out_unlock:
+ up_read(&sb_dqopt(inode->i_sb)->dqptr_sem);
+out:
+ return ret;
+}
+EXPORT_SYMBOL(dquot_alloc_space);
+
+int dquot_reserve_space(struct inode *inode, qsize_t number, int warn)
+{
+ int ret = QUOTA_OK;
+
+ if (IS_NOQUOTA(inode))
+ goto out;
+
+ down_read(&sb_dqopt(inode->i_sb)->dqptr_sem);
+ if (IS_NOQUOTA(inode))
+ goto out_unlock;
+
+ ret = __dquot_alloc_space(inode, number, warn, 1);
+out_unlock:
up_read(&sb_dqopt(inode->i_sb)->dqptr_sem);
+out:
return ret;
}
+EXPORT_SYMBOL(dquot_reserve_space);
/*
* This operation can block, but only after everything is updated
}
spin_lock(&dq_data_lock);
for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
- if (inode->i_dquot[cnt] == NODQUOT)
+ if (!inode->i_dquot[cnt])
continue;
- if (check_idq(inode->i_dquot[cnt], number, warntype+cnt) == NO_QUOTA)
+ if (check_idq(inode->i_dquot[cnt], number, warntype+cnt)
+ == NO_QUOTA)
goto warn_put_all;
}
for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
- if (inode->i_dquot[cnt] == NODQUOT)
+ if (!inode->i_dquot[cnt])
continue;
dquot_incr_inodes(inode->i_dquot[cnt], number);
}
up_read(&sb_dqopt(inode->i_sb)->dqptr_sem);
return ret;
}
+EXPORT_SYMBOL(dquot_alloc_inode);
+
+int dquot_claim_space(struct inode *inode, qsize_t number)
+{
+ int cnt;
+ int ret = QUOTA_OK;
+
+ if (IS_NOQUOTA(inode)) {
+ inode_add_bytes(inode, number);
+ goto out;
+ }
+
+ down_read(&sb_dqopt(inode->i_sb)->dqptr_sem);
+ if (IS_NOQUOTA(inode)) {
+ up_read(&sb_dqopt(inode->i_sb)->dqptr_sem);
+ inode_add_bytes(inode, number);
+ goto out;
+ }
+
+ spin_lock(&dq_data_lock);
+ /* Claim reserved quotas to allocated quotas */
+ for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
+ if (inode->i_dquot[cnt])
+ dquot_claim_reserved_space(inode->i_dquot[cnt],
+ number);
+ }
+ /* Update inode bytes */
+ inode_add_bytes(inode, number);
+ spin_unlock(&dq_data_lock);
+ /* Dirtify all the dquots - this can block when journalling */
+ for (cnt = 0; cnt < MAXQUOTAS; cnt++)
+ if (inode->i_dquot[cnt])
+ mark_dquot_dirty(inode->i_dquot[cnt]);
+ up_read(&sb_dqopt(inode->i_sb)->dqptr_sem);
+out:
+ return ret;
+}
+EXPORT_SYMBOL(dquot_claim_space);
+
+/*
+ * Release reserved quota space
+ */
+void dquot_release_reserved_space(struct inode *inode, qsize_t number)
+{
+ int cnt;
+
+ if (IS_NOQUOTA(inode))
+ goto out;
+
+ down_read(&sb_dqopt(inode->i_sb)->dqptr_sem);
+ if (IS_NOQUOTA(inode))
+ goto out_unlock;
+
+ spin_lock(&dq_data_lock);
+ /* Release reserved dquots */
+ for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
+ if (inode->i_dquot[cnt])
+ dquot_free_reserved_space(inode->i_dquot[cnt], number);
+ }
+ spin_unlock(&dq_data_lock);
+
+out_unlock:
+ up_read(&sb_dqopt(inode->i_sb)->dqptr_sem);
+out:
+ return;
+}
+EXPORT_SYMBOL(dquot_release_reserved_space);
/*
* This operation can block, but only after everything is updated
}
spin_lock(&dq_data_lock);
for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
- if (inode->i_dquot[cnt] == NODQUOT)
+ if (!inode->i_dquot[cnt])
continue;
warntype[cnt] = info_bdq_free(inode->i_dquot[cnt], number);
dquot_decr_space(inode->i_dquot[cnt], number);
up_read(&sb_dqopt(inode->i_sb)->dqptr_sem);
return QUOTA_OK;
}
+EXPORT_SYMBOL(dquot_free_space);
/*
* This operation can block, but only after everything is updated
}
spin_lock(&dq_data_lock);
for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
- if (inode->i_dquot[cnt] == NODQUOT)
+ if (!inode->i_dquot[cnt])
continue;
warntype[cnt] = info_idq_free(inode->i_dquot[cnt], number);
dquot_decr_inodes(inode->i_dquot[cnt], number);
up_read(&sb_dqopt(inode->i_sb)->dqptr_sem);
return QUOTA_OK;
}
+EXPORT_SYMBOL(dquot_free_inode);
+
+/*
+ * call back function, get reserved quota space from underlying fs
+ */
+qsize_t dquot_get_reserved_space(struct inode *inode)
+{
+ qsize_t reserved_space = 0;
+
+ if (sb_any_quota_active(inode->i_sb) &&
+ inode->i_sb->dq_op->get_reserved_space)
+ reserved_space = inode->i_sb->dq_op->get_reserved_space(inode);
+ return reserved_space;
+}
/*
* Transfer the number of inode and blocks from one diskquota to an other.
*/
int dquot_transfer(struct inode *inode, struct iattr *iattr)
{
- qsize_t space;
+ qsize_t space, cur_space;
+ qsize_t rsv_space = 0;
struct dquot *transfer_from[MAXQUOTAS];
struct dquot *transfer_to[MAXQUOTAS];
int cnt, ret = QUOTA_OK;
return QUOTA_OK;
/* Initialize the arrays */
for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
- transfer_from[cnt] = NODQUOT;
- transfer_to[cnt] = NODQUOT;
+ transfer_from[cnt] = NULL;
+ transfer_to[cnt] = NULL;
warntype_to[cnt] = QUOTA_NL_NOWARN;
- switch (cnt) {
- case USRQUOTA:
- if (!chuid)
- continue;
- transfer_to[cnt] = dqget(inode->i_sb, iattr->ia_uid, cnt);
- break;
- case GRPQUOTA:
- if (!chgid)
- continue;
- transfer_to[cnt] = dqget(inode->i_sb, iattr->ia_gid, cnt);
- break;
- }
}
+ if (chuid)
+ transfer_to[USRQUOTA] = dqget(inode->i_sb, iattr->ia_uid,
+ USRQUOTA);
+ if (chgid)
+ transfer_to[GRPQUOTA] = dqget(inode->i_sb, iattr->ia_gid,
+ GRPQUOTA);
down_write(&sb_dqopt(inode->i_sb)->dqptr_sem);
/* Now recheck reliably when holding dqptr_sem */
goto put_all;
}
spin_lock(&dq_data_lock);
- space = inode_get_bytes(inode);
+ cur_space = inode_get_bytes(inode);
+ rsv_space = dquot_get_reserved_space(inode);
+ space = cur_space + rsv_space;
/* Build the transfer_from list and check the limits */
for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
- if (transfer_to[cnt] == NODQUOT)
+ if (!transfer_to[cnt])
continue;
transfer_from[cnt] = inode->i_dquot[cnt];
if (check_idq(transfer_to[cnt], 1, warntype_to + cnt) ==
/*
* Skip changes for same uid or gid or for turned off quota-type.
*/
- if (transfer_to[cnt] == NODQUOT)
+ if (!transfer_to[cnt])
continue;
/* Due to IO error we might not have transfer_from[] structure */
warntype_from_space[cnt] =
info_bdq_free(transfer_from[cnt], space);
dquot_decr_inodes(transfer_from[cnt], 1);
- dquot_decr_space(transfer_from[cnt], space);
+ dquot_decr_space(transfer_from[cnt], cur_space);
+ dquot_free_reserved_space(transfer_from[cnt],
+ rsv_space);
}
dquot_incr_inodes(transfer_to[cnt], 1);
- dquot_incr_space(transfer_to[cnt], space);
+ dquot_incr_space(transfer_to[cnt], cur_space);
+ dquot_resv_space(transfer_to[cnt], rsv_space);
inode->i_dquot[cnt] = transfer_to[cnt];
}
if (transfer_to[cnt]) {
mark_dquot_dirty(transfer_to[cnt]);
/* The reference we got is transferred to the inode */
- transfer_to[cnt] = NODQUOT;
+ transfer_to[cnt] = NULL;
}
}
warn_put_all:
up_write(&sb_dqopt(inode->i_sb)->dqptr_sem);
/* Clear dquot pointers we don't want to dqput() */
for (cnt = 0; cnt < MAXQUOTAS; cnt++)
- transfer_from[cnt] = NODQUOT;
+ transfer_from[cnt] = NULL;
ret = NO_QUOTA;
goto warn_put_all;
}
+EXPORT_SYMBOL(dquot_transfer);
/* Wrapper for transferring ownership of an inode */
int vfs_dq_transfer(struct inode *inode, struct iattr *iattr)
}
return 0;
}
-
+EXPORT_SYMBOL(vfs_dq_transfer);
/*
* Write info of quota file to disk
mutex_unlock(&dqopt->dqio_mutex);
return ret;
}
+EXPORT_SYMBOL(dquot_commit_info);
/*
* Definitions of diskquota operations.
drop_dquot_ref(sb, cnt);
invalidate_dquots(sb, cnt);
/*
- * Now all dquots should be invalidated, all writes done so we should be only
- * users of the info. No locks needed.
+ * Now all dquots should be invalidated, all writes done so we
+ * should be only users of the info. No locks needed.
*/
if (info_dirty(&dqopt->info[cnt]))
sb->dq_op->write_info(sb, cnt);
/* If quota was reenabled in the meantime, we have
* nothing to do */
if (!sb_has_quota_loaded(sb, cnt)) {
- mutex_lock_nested(&toputinode[cnt]->i_mutex, I_MUTEX_QUOTA);
+ mutex_lock_nested(&toputinode[cnt]->i_mutex,
+ I_MUTEX_QUOTA);
toputinode[cnt]->i_flags &= ~(S_IMMUTABLE |
S_NOATIME | S_NOQUOTA);
- truncate_inode_pages(&toputinode[cnt]->i_data, 0);
+ truncate_inode_pages(&toputinode[cnt]->i_data,
+ 0);
mutex_unlock(&toputinode[cnt]->i_mutex);
mark_inode_dirty(toputinode[cnt]);
}
}
return ret;
}
+EXPORT_SYMBOL(vfs_quota_disable);
int vfs_quota_off(struct super_block *sb, int type, int remount)
{
return vfs_quota_disable(sb, type, remount ? DQUOT_SUSPENDED :
(DQUOT_USAGE_ENABLED | DQUOT_LIMITS_ENABLED));
}
-
+EXPORT_SYMBOL(vfs_quota_off);
/*
* Turn quotas on on a device
*/
* possible) Also nobody should write to the file - we use
* special IO operations which ignore the immutable bit. */
down_write(&dqopt->dqptr_sem);
- oldflags = inode->i_flags & (S_NOATIME | S_IMMUTABLE | S_NOQUOTA);
+ oldflags = inode->i_flags & (S_NOATIME | S_IMMUTABLE |
+ S_NOQUOTA);
inode->i_flags |= S_NOQUOTA | S_NOATIME | S_IMMUTABLE;
up_write(&dqopt->dqptr_sem);
sb->dq_op->drop(inode);
dqopt->info[type].dqi_fmt_id = format_id;
INIT_LIST_HEAD(&dqopt->info[type].dqi_dirty_list);
mutex_lock(&dqopt->dqio_mutex);
- if ((error = dqopt->ops[type]->read_file_info(sb, type)) < 0) {
+ error = dqopt->ops[type]->read_file_info(sb, type);
+ if (error < 0) {
mutex_unlock(&dqopt->dqio_mutex);
goto out_file_init;
}
DQUOT_LIMITS_ENABLED);
return error;
}
+EXPORT_SYMBOL(vfs_quota_on_path);
int vfs_quota_on(struct super_block *sb, int type, int format_id, char *name,
int remount)
}
return error;
}
+EXPORT_SYMBOL(vfs_quota_on);
/*
* More powerful function for turning on quotas allowing setting
load_quota:
return vfs_load_quota_inode(inode, type, format_id, flags);
}
+EXPORT_SYMBOL(vfs_quota_enable);
/*
* This function is used when filesystem needs to initialize quotas
dput(dentry);
return error;
}
+EXPORT_SYMBOL(vfs_quota_on_mount);
/* Wrapper to turn on quotas when remounting rw */
int vfs_dq_quota_on_remount(struct super_block *sb)
}
return ret;
}
+EXPORT_SYMBOL(vfs_dq_quota_on_remount);
static inline qsize_t qbtos(qsize_t blocks)
{
spin_lock(&dq_data_lock);
di->dqb_bhardlimit = stoqb(dm->dqb_bhardlimit);
di->dqb_bsoftlimit = stoqb(dm->dqb_bsoftlimit);
- di->dqb_curspace = dm->dqb_curspace;
+ di->dqb_curspace = dm->dqb_curspace + dm->dqb_rsvspace;
di->dqb_ihardlimit = dm->dqb_ihardlimit;
di->dqb_isoftlimit = dm->dqb_isoftlimit;
di->dqb_curinodes = dm->dqb_curinodes;
spin_unlock(&dq_data_lock);
}
-int vfs_get_dqblk(struct super_block *sb, int type, qid_t id, struct if_dqblk *di)
+int vfs_get_dqblk(struct super_block *sb, int type, qid_t id,
+ struct if_dqblk *di)
{
struct dquot *dquot;
dquot = dqget(sb, id, type);
- if (dquot == NODQUOT)
+ if (!dquot)
return -ESRCH;
do_get_dqblk(dquot, di);
dqput(dquot);
return 0;
}
+EXPORT_SYMBOL(vfs_get_dqblk);
/* Generic routine for setting common part of quota structure */
static int do_set_dqblk(struct dquot *dquot, struct if_dqblk *di)
spin_lock(&dq_data_lock);
if (di->dqb_valid & QIF_SPACE) {
- dm->dqb_curspace = di->dqb_curspace;
+ dm->dqb_curspace = di->dqb_curspace - dm->dqb_rsvspace;
check_blim = 1;
__set_bit(DQ_LASTSET_B + QIF_SPACE_B, &dquot->dq_flags);
}
}
if (check_blim) {
- if (!dm->dqb_bsoftlimit || dm->dqb_curspace < dm->dqb_bsoftlimit) {
+ if (!dm->dqb_bsoftlimit ||
+ dm->dqb_curspace < dm->dqb_bsoftlimit) {
dm->dqb_btime = 0;
clear_bit(DQ_BLKS_B, &dquot->dq_flags);
- }
- else if (!(di->dqb_valid & QIF_BTIME)) /* Set grace only if user hasn't provided his own... */
+ } else if (!(di->dqb_valid & QIF_BTIME))
+ /* Set grace only if user hasn't provided his own... */
dm->dqb_btime = get_seconds() + dqi->dqi_bgrace;
}
if (check_ilim) {
- if (!dm->dqb_isoftlimit || dm->dqb_curinodes < dm->dqb_isoftlimit) {
+ if (!dm->dqb_isoftlimit ||
+ dm->dqb_curinodes < dm->dqb_isoftlimit) {
dm->dqb_itime = 0;
clear_bit(DQ_INODES_B, &dquot->dq_flags);
- }
- else if (!(di->dqb_valid & QIF_ITIME)) /* Set grace only if user hasn't provided his own... */
+ } else if (!(di->dqb_valid & QIF_ITIME))
+ /* Set grace only if user hasn't provided his own... */
dm->dqb_itime = get_seconds() + dqi->dqi_igrace;
}
- if (dm->dqb_bhardlimit || dm->dqb_bsoftlimit || dm->dqb_ihardlimit || dm->dqb_isoftlimit)
+ if (dm->dqb_bhardlimit || dm->dqb_bsoftlimit || dm->dqb_ihardlimit ||
+ dm->dqb_isoftlimit)
clear_bit(DQ_FAKE_B, &dquot->dq_flags);
else
set_bit(DQ_FAKE_B, &dquot->dq_flags);
return 0;
}
-int vfs_set_dqblk(struct super_block *sb, int type, qid_t id, struct if_dqblk *di)
+int vfs_set_dqblk(struct super_block *sb, int type, qid_t id,
+ struct if_dqblk *di)
{
struct dquot *dquot;
int rc;
out:
return rc;
}
+EXPORT_SYMBOL(vfs_set_dqblk);
/* Generic routine for getting common part of quota file information */
int vfs_get_dqinfo(struct super_block *sb, int type, struct if_dqinfo *ii)
mutex_unlock(&sb_dqopt(sb)->dqonoff_mutex);
return 0;
}
+EXPORT_SYMBOL(vfs_get_dqinfo);
/* Generic routine for setting common part of quota file information */
int vfs_set_dqinfo(struct super_block *sb, int type, struct if_dqinfo *ii)
if (ii->dqi_valid & IIF_IGRACE)
mi->dqi_igrace = ii->dqi_igrace;
if (ii->dqi_valid & IIF_FLAGS)
- mi->dqi_flags = (mi->dqi_flags & ~DQF_MASK) | (ii->dqi_flags & DQF_MASK);
+ mi->dqi_flags = (mi->dqi_flags & ~DQF_MASK) |
+ (ii->dqi_flags & DQF_MASK);
spin_unlock(&dq_data_lock);
mark_info_dirty(sb, type);
/* Force write to disk */
mutex_unlock(&sb_dqopt(sb)->dqonoff_mutex);
return err;
}
+EXPORT_SYMBOL(vfs_set_dqinfo);
struct quotactl_ops vfs_quotactl_ops = {
.quota_on = vfs_quota_on,
#ifdef CONFIG_QUOTA_NETLINK_INTERFACE
if (genl_register_family("a_genl_family) != 0)
- printk(KERN_ERR "VFS: Failed to create quota netlink interface.\n");
+ printk(KERN_ERR
+ "VFS: Failed to create quota netlink interface.\n");
#endif
return 0;
}
module_init(dquot_init);
-
-EXPORT_SYMBOL(register_quota_format);
-EXPORT_SYMBOL(unregister_quota_format);
-EXPORT_SYMBOL(dqstats);
-EXPORT_SYMBOL(dq_data_lock);
-EXPORT_SYMBOL(vfs_quota_enable);
-EXPORT_SYMBOL(vfs_quota_on);
-EXPORT_SYMBOL(vfs_quota_on_path);
-EXPORT_SYMBOL(vfs_quota_on_mount);
-EXPORT_SYMBOL(vfs_quota_disable);
-EXPORT_SYMBOL(vfs_quota_off);
-EXPORT_SYMBOL(dquot_scan_active);
-EXPORT_SYMBOL(vfs_quota_sync);
-EXPORT_SYMBOL(vfs_get_dqinfo);
-EXPORT_SYMBOL(vfs_set_dqinfo);
-EXPORT_SYMBOL(vfs_get_dqblk);
-EXPORT_SYMBOL(vfs_set_dqblk);
-EXPORT_SYMBOL(dquot_commit);
-EXPORT_SYMBOL(dquot_commit_info);
-EXPORT_SYMBOL(dquot_acquire);
-EXPORT_SYMBOL(dquot_release);
-EXPORT_SYMBOL(dquot_mark_dquot_dirty);
-EXPORT_SYMBOL(dquot_initialize);
-EXPORT_SYMBOL(dquot_drop);
-EXPORT_SYMBOL(vfs_dq_drop);
-EXPORT_SYMBOL(dqget);
-EXPORT_SYMBOL(dqput);
-EXPORT_SYMBOL(dquot_alloc_space);
-EXPORT_SYMBOL(dquot_alloc_inode);
-EXPORT_SYMBOL(dquot_free_space);
-EXPORT_SYMBOL(dquot_free_inode);
-EXPORT_SYMBOL(dquot_transfer);
-EXPORT_SYMBOL(vfs_dq_transfer);
-EXPORT_SYMBOL(vfs_dq_quota_on_remount);
#include <linux/types.h>
/* Check validity of generic quotactl commands */
-static int generic_quotactl_valid(struct super_block *sb, int type, int cmd, qid_t id)
+static int generic_quotactl_valid(struct super_block *sb, int type, int cmd,
+ qid_t id)
{
if (type >= MAXQUOTAS)
return -EINVAL;
case Q_SETINFO:
case Q_SETQUOTA:
case Q_GETQUOTA:
- /* This is just informative test so we are satisfied without a lock */
+ /* This is just an informative test so we are satisfied
+ * without the lock */
if (!sb_has_quota_active(sb, type))
return -ESRCH;
}
}
/* Check validity of XFS Quota Manager commands */
-static int xqm_quotactl_valid(struct super_block *sb, int type, int cmd, qid_t id)
+static int xqm_quotactl_valid(struct super_block *sb, int type, int cmd,
+ qid_t id)
{
if (type >= XQM_MAXQUOTAS)
return -EINVAL;
return 0;
}
-static int check_quotactl_valid(struct super_block *sb, int type, int cmd, qid_t id)
+static int check_quotactl_valid(struct super_block *sb, int type, int cmd,
+ qid_t id)
{
int error;
continue;
if (!sb_has_quota_active(sb, cnt))
continue;
- mutex_lock_nested(&sb_dqopt(sb)->files[cnt]->i_mutex, I_MUTEX_QUOTA);
+ mutex_lock_nested(&sb_dqopt(sb)->files[cnt]->i_mutex,
+ I_MUTEX_QUOTA);
truncate_inode_pages(&sb_dqopt(sb)->files[cnt]->i_data, 0);
mutex_unlock(&sb_dqopt(sb)->files[cnt]->i_mutex);
}
spin_lock(&sb_lock);
restart:
list_for_each_entry(sb, &super_blocks, s_list) {
- /* This test just improves performance so it needn't be reliable... */
+ /* This test just improves performance so it needn't be
+ * reliable... */
for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
if (type != -1 && type != cnt)
continue;
if (!sb_has_quota_active(sb, cnt))
continue;
if (!info_dirty(&sb_dqopt(sb)->info[cnt]) &&
- list_empty(&sb_dqopt(sb)->info[cnt].dqi_dirty_list))
+ list_empty(&sb_dqopt(sb)->info[cnt].dqi_dirty_list))
continue;
break;
}
}
/* Copy parameters and call proper function */
-static int do_quotactl(struct super_block *sb, int type, int cmd, qid_t id, void __user *addr)
+static int do_quotactl(struct super_block *sb, int type, int cmd, qid_t id,
+ void __user *addr)
{
int ret;
case Q_QUOTAON: {
char *pathname;
- if (IS_ERR(pathname = getname(addr)))
+ pathname = getname(addr);
+ if (IS_ERR(pathname))
return PTR_ERR(pathname);
ret = sb->s_qcop->quota_on(sb, type, id, pathname, 0);
putname(pathname);
case Q_GETINFO: {
struct if_dqinfo info;
- if ((ret = sb->s_qcop->get_info(sb, type, &info)))
+ ret = sb->s_qcop->get_info(sb, type, &info);
+ if (ret)
return ret;
if (copy_to_user(addr, &info, sizeof(info)))
return -EFAULT;
case Q_GETQUOTA: {
struct if_dqblk idq;
- if ((ret = sb->s_qcop->get_dqblk(sb, type, id, &idq)))
+ ret = sb->s_qcop->get_dqblk(sb, type, id, &idq);
+ if (ret)
return ret;
if (copy_to_user(addr, &idq, sizeof(idq)))
return -EFAULT;
case Q_XGETQUOTA: {
struct fs_disk_quota fdq;
- if ((ret = sb->s_qcop->get_xquota(sb, type, id, &fdq)))
+ ret = sb->s_qcop->get_xquota(sb, type, id, &fdq);
+ if (ret)
return ret;
if (copy_to_user(addr, &fdq, sizeof(fdq)))
return -EFAULT;
* look up a superblock on which quota ops will be performed
* - use the name of a block device to find the superblock thereon
*/
-static inline struct super_block *quotactl_block(const char __user *special)
+static struct super_block *quotactl_block(const char __user *special)
{
#ifdef CONFIG_BLOCK
struct block_device *bdev;
#define __QUOTA_QT_PARANOIA
-typedef char *dqbuf_t;
-
static int get_index(struct qtree_mem_dqinfo *info, qid_t id, int depth)
{
unsigned int epb = info->dqi_usable_bs >> 2;
}
/* Number of entries in one blocks */
-static inline int qtree_dqstr_in_blk(struct qtree_mem_dqinfo *info)
+static int qtree_dqstr_in_blk(struct qtree_mem_dqinfo *info)
{
return (info->dqi_usable_bs - sizeof(struct qt_disk_dqdbheader))
/ info->dqi_entry_size;
}
-static dqbuf_t getdqbuf(size_t size)
+static char *getdqbuf(size_t size)
{
- dqbuf_t buf = kmalloc(size, GFP_NOFS);
+ char *buf = kmalloc(size, GFP_NOFS);
if (!buf)
- printk(KERN_WARNING "VFS: Not enough memory for quota buffers.\n");
+ printk(KERN_WARNING
+ "VFS: Not enough memory for quota buffers.\n");
return buf;
}
-static inline void freedqbuf(dqbuf_t buf)
-{
- kfree(buf);
-}
-
-static inline ssize_t read_blk(struct qtree_mem_dqinfo *info, uint blk, dqbuf_t buf)
+static ssize_t read_blk(struct qtree_mem_dqinfo *info, uint blk, char *buf)
{
struct super_block *sb = info->dqi_sb;
memset(buf, 0, info->dqi_usable_bs);
- return sb->s_op->quota_read(sb, info->dqi_type, (char *)buf,
+ return sb->s_op->quota_read(sb, info->dqi_type, buf,
info->dqi_usable_bs, blk << info->dqi_blocksize_bits);
}
-static inline ssize_t write_blk(struct qtree_mem_dqinfo *info, uint blk, dqbuf_t buf)
+static ssize_t write_blk(struct qtree_mem_dqinfo *info, uint blk, char *buf)
{
struct super_block *sb = info->dqi_sb;
- return sb->s_op->quota_write(sb, info->dqi_type, (char *)buf,
+ return sb->s_op->quota_write(sb, info->dqi_type, buf,
info->dqi_usable_bs, blk << info->dqi_blocksize_bits);
}
/* Remove empty block from list and return it */
static int get_free_dqblk(struct qtree_mem_dqinfo *info)
{
- dqbuf_t buf = getdqbuf(info->dqi_usable_bs);
+ char *buf = getdqbuf(info->dqi_usable_bs);
struct qt_disk_dqdbheader *dh = (struct qt_disk_dqdbheader *)buf;
int ret, blk;
mark_info_dirty(info->dqi_sb, info->dqi_type);
ret = blk;
out_buf:
- freedqbuf(buf);
+ kfree(buf);
return ret;
}
/* Insert empty block to the list */
-static int put_free_dqblk(struct qtree_mem_dqinfo *info, dqbuf_t buf, uint blk)
+static int put_free_dqblk(struct qtree_mem_dqinfo *info, char *buf, uint blk)
{
struct qt_disk_dqdbheader *dh = (struct qt_disk_dqdbheader *)buf;
int err;
}
/* Remove given block from the list of blocks with free entries */
-static int remove_free_dqentry(struct qtree_mem_dqinfo *info, dqbuf_t buf, uint blk)
+static int remove_free_dqentry(struct qtree_mem_dqinfo *info, char *buf,
+ uint blk)
{
- dqbuf_t tmpbuf = getdqbuf(info->dqi_usable_bs);
+ char *tmpbuf = getdqbuf(info->dqi_usable_bs);
struct qt_disk_dqdbheader *dh = (struct qt_disk_dqdbheader *)buf;
uint nextblk = le32_to_cpu(dh->dqdh_next_free);
uint prevblk = le32_to_cpu(dh->dqdh_prev_free);
info->dqi_free_entry = nextblk;
mark_info_dirty(info->dqi_sb, info->dqi_type);
}
- freedqbuf(tmpbuf);
+ kfree(tmpbuf);
dh->dqdh_next_free = dh->dqdh_prev_free = cpu_to_le32(0);
/* No matter whether write succeeds block is out of list */
if (write_blk(info, blk, buf) < 0)
- printk(KERN_ERR "VFS: Can't write block (%u) with free entries.\n", blk);
+ printk(KERN_ERR
+ "VFS: Can't write block (%u) with free entries.\n",
+ blk);
return 0;
out_buf:
- freedqbuf(tmpbuf);
+ kfree(tmpbuf);
return err;
}
/* Insert given block to the beginning of list with free entries */
-static int insert_free_dqentry(struct qtree_mem_dqinfo *info, dqbuf_t buf, uint blk)
+static int insert_free_dqentry(struct qtree_mem_dqinfo *info, char *buf,
+ uint blk)
{
- dqbuf_t tmpbuf = getdqbuf(info->dqi_usable_bs);
+ char *tmpbuf = getdqbuf(info->dqi_usable_bs);
struct qt_disk_dqdbheader *dh = (struct qt_disk_dqdbheader *)buf;
int err;
if (err < 0)
goto out_buf;
}
- freedqbuf(tmpbuf);
+ kfree(tmpbuf);
info->dqi_free_entry = blk;
mark_info_dirty(info->dqi_sb, info->dqi_type);
return 0;
out_buf:
- freedqbuf(tmpbuf);
+ kfree(tmpbuf);
return err;
}
{
uint blk, i;
struct qt_disk_dqdbheader *dh;
- dqbuf_t buf = getdqbuf(info->dqi_usable_bs);
+ char *buf = getdqbuf(info->dqi_usable_bs);
char *ddquot;
*err = 0;
blk = get_free_dqblk(info);
if ((int)blk < 0) {
*err = blk;
- freedqbuf(buf);
+ kfree(buf);
return 0;
}
memset(buf, 0, info->dqi_usable_bs);
- /* This is enough as block is already zeroed and entry list is empty... */
+ /* This is enough as the block is already zeroed and the entry
+ * list is empty... */
info->dqi_free_entry = blk;
mark_info_dirty(dquot->dq_sb, dquot->dq_type);
}
}
le16_add_cpu(&dh->dqdh_entries, 1);
/* Find free structure in block */
- for (i = 0, ddquot = ((char *)buf) + sizeof(struct qt_disk_dqdbheader);
- i < qtree_dqstr_in_blk(info) && !qtree_entry_unused(info, ddquot);
- i++, ddquot += info->dqi_entry_size);
+ ddquot = buf + sizeof(struct qt_disk_dqdbheader);
+ for (i = 0; i < qtree_dqstr_in_blk(info); i++) {
+ if (qtree_entry_unused(info, ddquot))
+ break;
+ ddquot += info->dqi_entry_size;
+ }
#ifdef __QUOTA_QT_PARANOIA
if (i == qtree_dqstr_in_blk(info)) {
printk(KERN_ERR "VFS: find_free_dqentry(): Data block full "
dquot->dq_off = (blk << info->dqi_blocksize_bits) +
sizeof(struct qt_disk_dqdbheader) +
i * info->dqi_entry_size;
- freedqbuf(buf);
+ kfree(buf);
return blk;
out_buf:
- freedqbuf(buf);
+ kfree(buf);
return 0;
}
static int do_insert_tree(struct qtree_mem_dqinfo *info, struct dquot *dquot,
uint *treeblk, int depth)
{
- dqbuf_t buf = getdqbuf(info->dqi_usable_bs);
+ char *buf = getdqbuf(info->dqi_usable_bs);
int ret = 0, newson = 0, newact = 0;
__le32 *ref;
uint newblk;
put_free_dqblk(info, buf, *treeblk);
}
out_buf:
- freedqbuf(buf);
+ kfree(buf);
return ret;
}
}
/*
- * We don't have to be afraid of deadlocks as we never have quotas on quota files...
+ * We don't have to be afraid of deadlocks as we never have quotas on quota
+ * files...
*/
int qtree_write_dquot(struct qtree_mem_dqinfo *info, struct dquot *dquot)
{
int type = dquot->dq_type;
struct super_block *sb = dquot->dq_sb;
ssize_t ret;
- dqbuf_t ddquot = getdqbuf(info->dqi_entry_size);
+ char *ddquot = getdqbuf(info->dqi_entry_size);
if (!ddquot)
return -ENOMEM;
if (ret < 0) {
printk(KERN_ERR "VFS: Error %zd occurred while "
"creating quota.\n", ret);
- freedqbuf(ddquot);
+ kfree(ddquot);
return ret;
}
}
spin_lock(&dq_data_lock);
info->dqi_ops->mem2disk_dqblk(ddquot, dquot);
spin_unlock(&dq_data_lock);
- ret = sb->s_op->quota_write(sb, type, (char *)ddquot,
- info->dqi_entry_size, dquot->dq_off);
+ ret = sb->s_op->quota_write(sb, type, ddquot, info->dqi_entry_size,
+ dquot->dq_off);
if (ret != info->dqi_entry_size) {
printk(KERN_WARNING "VFS: dquota write failed on dev %s\n",
sb->s_id);
ret = 0;
}
dqstats.writes++;
- freedqbuf(ddquot);
+ kfree(ddquot);
return ret;
}
uint blk)
{
struct qt_disk_dqdbheader *dh;
- dqbuf_t buf = getdqbuf(info->dqi_usable_bs);
+ char *buf = getdqbuf(info->dqi_usable_bs);
int ret = 0;
if (!buf)
}
dquot->dq_off = 0; /* Quota is now unattached */
out_buf:
- freedqbuf(buf);
+ kfree(buf);
return ret;
}
static int remove_tree(struct qtree_mem_dqinfo *info, struct dquot *dquot,
uint *blk, int depth)
{
- dqbuf_t buf = getdqbuf(info->dqi_usable_bs);
+ char *buf = getdqbuf(info->dqi_usable_bs);
int ret = 0;
uint newblk;
__le32 *ref = (__le32 *)buf;
int i;
ref[get_index(info, dquot->dq_id, depth)] = cpu_to_le32(0);
/* Block got empty? */
- for (i = 0;
- i < (info->dqi_usable_bs >> 2) && !ref[i];
- i++);
+ for (i = 0; i < (info->dqi_usable_bs >> 2) && !ref[i]; i++)
+ ;
/* Don't put the root block into the free block list */
if (i == (info->dqi_usable_bs >> 2)
&& *blk != QT_TREEOFF) {
}
}
out_buf:
- freedqbuf(buf);
+ kfree(buf);
return ret;
}
static loff_t find_block_dqentry(struct qtree_mem_dqinfo *info,
struct dquot *dquot, uint blk)
{
- dqbuf_t buf = getdqbuf(info->dqi_usable_bs);
+ char *buf = getdqbuf(info->dqi_usable_bs);
loff_t ret = 0;
int i;
char *ddquot;
printk(KERN_ERR "VFS: Can't read quota tree block %u.\n", blk);
goto out_buf;
}
- for (i = 0, ddquot = ((char *)buf) + sizeof(struct qt_disk_dqdbheader);
- i < qtree_dqstr_in_blk(info) && !info->dqi_ops->is_id(ddquot, dquot);
- i++, ddquot += info->dqi_entry_size);
+ ddquot = buf + sizeof(struct qt_disk_dqdbheader);
+ for (i = 0; i < qtree_dqstr_in_blk(info); i++) {
+ if (info->dqi_ops->is_id(ddquot, dquot))
+ break;
+ ddquot += info->dqi_entry_size;
+ }
if (i == qtree_dqstr_in_blk(info)) {
printk(KERN_ERR "VFS: Quota for id %u referenced "
"but not present.\n", dquot->dq_id);
qt_disk_dqdbheader) + i * info->dqi_entry_size;
}
out_buf:
- freedqbuf(buf);
+ kfree(buf);
return ret;
}
static loff_t find_tree_dqentry(struct qtree_mem_dqinfo *info,
struct dquot *dquot, uint blk, int depth)
{
- dqbuf_t buf = getdqbuf(info->dqi_usable_bs);
+ char *buf = getdqbuf(info->dqi_usable_bs);
loff_t ret = 0;
__le32 *ref = (__le32 *)buf;
else
ret = find_block_dqentry(info, dquot, blk);
out_buf:
- freedqbuf(buf);
+ kfree(buf);
return ret;
}
int type = dquot->dq_type;
struct super_block *sb = dquot->dq_sb;
loff_t offset;
- dqbuf_t ddquot;
+ char *ddquot;
int ret = 0;
#ifdef __QUOTA_QT_PARANOIA
ddquot = getdqbuf(info->dqi_entry_size);
if (!ddquot)
return -ENOMEM;
- ret = sb->s_op->quota_read(sb, type, (char *)ddquot,
- info->dqi_entry_size, dquot->dq_off);
+ ret = sb->s_op->quota_read(sb, type, ddquot, info->dqi_entry_size,
+ dquot->dq_off);
if (ret != info->dqi_entry_size) {
if (ret >= 0)
ret = -EIO;
"structure for id %u.\n", dquot->dq_id);
set_bit(DQ_FAKE_B, &dquot->dq_flags);
memset(&dquot->dq_dqb, 0, sizeof(struct mem_dqblk));
- freedqbuf(ddquot);
+ kfree(ddquot);
goto out;
}
spin_lock(&dq_data_lock);
!dquot->dq_dqb.dqb_isoftlimit)
set_bit(DQ_FAKE_B, &dquot->dq_flags);
spin_unlock(&dq_data_lock);
- freedqbuf(ddquot);
+ kfree(ddquot);
out:
dqstats.reads++;
return ret;
* the only one operating on dquot (thanks to dq_lock) */
int qtree_release_dquot(struct qtree_mem_dqinfo *info, struct dquot *dquot)
{
- if (test_bit(DQ_FAKE_B, &dquot->dq_flags) && !(dquot->dq_dqb.dqb_curinodes | dquot->dq_dqb.dqb_curspace))
+ if (test_bit(DQ_FAKE_B, &dquot->dq_flags) &&
+ !(dquot->dq_dqb.dqb_curinodes | dquot->dq_dqb.dqb_curspace))
return qtree_delete_dquot(info, dquot);
return 0;
}
/* Set structure to 0s in case read fails/is after end of file */
memset(&dqblk, 0, sizeof(struct v1_disk_dqblk));
- dquot->dq_sb->s_op->quota_read(dquot->dq_sb, type, (char *)&dqblk, sizeof(struct v1_disk_dqblk), v1_dqoff(dquot->dq_id));
+ dquot->dq_sb->s_op->quota_read(dquot->dq_sb, type, (char *)&dqblk,
+ sizeof(struct v1_disk_dqblk), v1_dqoff(dquot->dq_id));
v1_disk2mem_dqblk(&dquot->dq_dqb, &dqblk);
- if (dquot->dq_dqb.dqb_bhardlimit == 0 && dquot->dq_dqb.dqb_bsoftlimit == 0 &&
- dquot->dq_dqb.dqb_ihardlimit == 0 && dquot->dq_dqb.dqb_isoftlimit == 0)
+ if (dquot->dq_dqb.dqb_bhardlimit == 0 &&
+ dquot->dq_dqb.dqb_bsoftlimit == 0 &&
+ dquot->dq_dqb.dqb_ihardlimit == 0 &&
+ dquot->dq_dqb.dqb_isoftlimit == 0)
set_bit(DQ_FAKE_B, &dquot->dq_flags);
dqstats.reads++;
v1_mem2disk_dqblk(&dqblk, &dquot->dq_dqb);
if (dquot->dq_id == 0) {
- dqblk.dqb_btime = sb_dqopt(dquot->dq_sb)->info[type].dqi_bgrace;
- dqblk.dqb_itime = sb_dqopt(dquot->dq_sb)->info[type].dqi_igrace;
+ dqblk.dqb_btime =
+ sb_dqopt(dquot->dq_sb)->info[type].dqi_bgrace;
+ dqblk.dqb_itime =
+ sb_dqopt(dquot->dq_sb)->info[type].dqi_igrace;
}
ret = 0;
if (sb_dqopt(dquot->dq_sb)->files[type])
- ret = dquot->dq_sb->s_op->quota_write(dquot->dq_sb, type, (char *)&dqblk,
- sizeof(struct v1_disk_dqblk), v1_dqoff(dquot->dq_id));
+ ret = dquot->dq_sb->s_op->quota_write(dquot->dq_sb, type,
+ (char *)&dqblk, sizeof(struct v1_disk_dqblk),
+ v1_dqoff(dquot->dq_id));
if (ret != sizeof(struct v1_disk_dqblk)) {
printk(KERN_WARNING "VFS: dquota write failed on dev %s\n",
dquot->dq_sb->s_id);
return 0;
blocks = isize >> BLOCK_SIZE_BITS;
off = isize & (BLOCK_SIZE - 1);
- if ((blocks % sizeof(struct v1_disk_dqblk) * BLOCK_SIZE + off) % sizeof(struct v1_disk_dqblk))
+ if ((blocks % sizeof(struct v1_disk_dqblk) * BLOCK_SIZE + off) %
+ sizeof(struct v1_disk_dqblk))
return 0;
- /* Doublecheck whether we didn't get file with new format - with old quotactl() this could happen */
- size = sb->s_op->quota_read(sb, type, (char *)&dqhead, sizeof(struct v2_disk_dqheader), 0);
+ /* Doublecheck whether we didn't get file with new format - with old
+ * quotactl() this could happen */
+ size = sb->s_op->quota_read(sb, type, (char *)&dqhead,
+ sizeof(struct v2_disk_dqheader), 0);
if (size != sizeof(struct v2_disk_dqheader))
return 1; /* Probably not new format */
if (le32_to_cpu(dqhead.dqh_magic) != quota_magics[type])
return 1; /* Definitely not new format */
- printk(KERN_INFO "VFS: %s: Refusing to turn on old quota format on given file. It probably contains newer quota format.\n", sb->s_id);
+ printk(KERN_INFO
+ "VFS: %s: Refusing to turn on old quota format on given file."
+ " It probably contains newer quota format.\n", sb->s_id);
return 0; /* Seems like a new format file -> refuse it */
}
struct v1_disk_dqblk dqblk;
int ret;
- if ((ret = sb->s_op->quota_read(sb, type, (char *)&dqblk, sizeof(struct v1_disk_dqblk), v1_dqoff(0))) != sizeof(struct v1_disk_dqblk)) {
+ ret = sb->s_op->quota_read(sb, type, (char *)&dqblk,
+ sizeof(struct v1_disk_dqblk), v1_dqoff(0));
+ if (ret != sizeof(struct v1_disk_dqblk)) {
if (ret >= 0)
ret = -EIO;
goto out;
/* limits are stored as unsigned 32-bit data */
dqopt->info[type].dqi_maxblimit = 0xffffffff;
dqopt->info[type].dqi_maxilimit = 0xffffffff;
- dqopt->info[type].dqi_igrace = dqblk.dqb_itime ? dqblk.dqb_itime : MAX_IQ_TIME;
- dqopt->info[type].dqi_bgrace = dqblk.dqb_btime ? dqblk.dqb_btime : MAX_DQ_TIME;
+ dqopt->info[type].dqi_igrace =
+ dqblk.dqb_itime ? dqblk.dqb_itime : MAX_IQ_TIME;
+ dqopt->info[type].dqi_bgrace =
+ dqblk.dqb_btime ? dqblk.dqb_btime : MAX_DQ_TIME;
out:
return ret;
}
int ret;
dqopt->info[type].dqi_flags &= ~DQF_INFO_DIRTY;
- if ((ret = sb->s_op->quota_read(sb, type, (char *)&dqblk,
- sizeof(struct v1_disk_dqblk), v1_dqoff(0))) != sizeof(struct v1_disk_dqblk)) {
+ ret = sb->s_op->quota_read(sb, type, (char *)&dqblk,
+ sizeof(struct v1_disk_dqblk), v1_dqoff(0));
+ if (ret != sizeof(struct v1_disk_dqblk)) {
if (ret >= 0)
ret = -EIO;
goto out;
static const uint quota_magics[] = V2_INITQMAGICS;
static const uint quota_versions[] = V2_INITQVERSIONS;
- size = sb->s_op->quota_read(sb, type, (char *)&dqhead, sizeof(struct v2_disk_dqheader), 0);
+ size = sb->s_op->quota_read(sb, type, (char *)&dqhead,
+ sizeof(struct v2_disk_dqheader), 0);
if (size != sizeof(struct v2_disk_dqheader)) {
printk("quota_v2: failed read expected=%zd got=%zd\n",
sizeof(struct v2_disk_dqheader), size);
#include <linux/string.h>
#include <linux/backing-dev.h>
#include <linux/ramfs.h>
-#include <linux/quotaops.h>
#include <linux/pagevec.h>
#include <linux/mman.h>
if (ret)
return ret;
- /* by providing our own setattr() method, we skip this quotaism */
- if ((old_ia_valid & ATTR_UID && ia->ia_uid != inode->i_uid) ||
- (old_ia_valid & ATTR_GID && ia->ia_gid != inode->i_gid))
- ret = DQUOT_TRANSFER(inode, ia) ? -EDQUOT : 0;
-
/* pick out size-changing events */
if (ia->ia_valid & ATTR_SIZE) {
loff_t size = i_size_read(inode);
journal_mark_dirty(th, s, sbh);
if (for_unformatted)
- DQUOT_FREE_BLOCK_NODIRTY(inode, 1);
+ vfs_dq_free_block_nodirty(inode, 1);
}
void reiserfs_free_block(struct reiserfs_transaction_handle *th,
amount_needed, hint->inode->i_uid);
#endif
quota_ret =
- DQUOT_ALLOC_BLOCK_NODIRTY(hint->inode, amount_needed);
+ vfs_dq_alloc_block_nodirty(hint->inode, amount_needed);
if (quota_ret) /* Quota exceeded? */
return QUOTA_EXCEEDED;
if (hint->preallocate && hint->prealloc_size) {
"reiserquota: allocating (prealloc) %d blocks id=%u",
hint->prealloc_size, hint->inode->i_uid);
#endif
- quota_ret =
- DQUOT_PREALLOC_BLOCK_NODIRTY(hint->inode,
+ quota_ret = vfs_dq_prealloc_block_nodirty(hint->inode,
hint->prealloc_size);
if (quota_ret)
hint->preallocate = hint->prealloc_size = 0;
nr_allocated,
hint->inode->i_uid);
#endif
- DQUOT_FREE_BLOCK_NODIRTY(hint->inode, amount_needed + hint->prealloc_size - nr_allocated); /* Free not allocated blocks */
+ /* Free not allocated blocks */
+ vfs_dq_free_block_nodirty(hint->inode,
+ amount_needed + hint->prealloc_size -
+ nr_allocated);
}
while (nr_allocated--)
reiserfs_free_block(hint->th, hint->inode,
REISERFS_I(hint->inode)->i_prealloc_count,
hint->inode->i_uid);
#endif
- DQUOT_FREE_BLOCK_NODIRTY(hint->inode, amount_needed +
+ vfs_dq_free_block_nodirty(hint->inode, amount_needed +
hint->prealloc_size - nr_allocated -
REISERFS_I(hint->inode)->
i_prealloc_count);
* after delete_object so that quota updates go into the same transaction as
* stat data deletion */
if (!err)
- DQUOT_FREE_INODE(inode);
+ vfs_dq_free_inode(inode);
if (journal_end(&th, inode->i_sb, jbegin_count))
goto out;
BUG_ON(!th->t_trans_id);
- if (DQUOT_ALLOC_INODE(inode)) {
+ if (vfs_dq_alloc_inode(inode)) {
err = -EDQUOT;
goto out_end_trans;
}
INODE_PKEY(inode)->k_objectid = 0;
/* Quota change must be inside a transaction for journaling */
- DQUOT_FREE_INODE(inode);
+ vfs_dq_free_inode(inode);
out_end_trans:
journal_end(th, th->t_super, th->t_blocks_allocated);
/* Drop can be outside and it needs more credits so it's better to have it outside */
- DQUOT_DROP(inode);
+ vfs_dq_drop(inode);
inode->i_flags |= S_NOQUOTA;
make_bad_inode(inode);
if (error)
goto out;
error =
- DQUOT_TRANSFER(inode, attr) ? -EDQUOT : 0;
+ vfs_dq_transfer(inode, attr) ? -EDQUOT : 0;
if (error) {
journal_end(&th, inode->i_sb,
jbegin_count);
*/
static int drop_new_inode(struct inode *inode)
{
- DQUOT_DROP(inode);
+ vfs_dq_drop(inode);
make_bad_inode(inode);
inode->i_flags |= S_NOQUOTA;
iput(inode);
}
/* utility function that does setup for reiserfs_new_inode.
-** DQUOT_INIT needs lots of credits so it's better to have it
+** vfs_dq_init needs lots of credits so it's better to have it
** outside of a transaction, so we had to pull some bits of
** reiserfs_new_inode out into this func.
*/
} else {
inode->i_gid = current_fsgid();
}
- DQUOT_INIT(inode);
+ vfs_dq_init(inode);
return 0;
}
"reiserquota delete_item(): freeing %u, id=%u type=%c",
quota_cut_bytes, p_s_inode->i_uid, head2type(&s_ih));
#endif
- DQUOT_FREE_SPACE_NODIRTY(p_s_inode, quota_cut_bytes);
+ vfs_dq_free_space_nodirty(p_s_inode, quota_cut_bytes);
/* Return deleted body length */
return n_ret_value;
quota_cut_bytes, inode->i_uid,
key2type(key));
#endif
- DQUOT_FREE_SPACE_NODIRTY(inode,
+ vfs_dq_free_space_nodirty(inode,
quota_cut_bytes);
}
break;
"reiserquota cut_from_item(): freeing %u id=%u type=%c",
quota_cut_bytes, p_s_inode->i_uid, '?');
#endif
- DQUOT_FREE_SPACE_NODIRTY(p_s_inode, quota_cut_bytes);
+ vfs_dq_free_space_nodirty(p_s_inode, quota_cut_bytes);
return n_ret_value;
}
key2type(&(p_s_key->on_disk_key)));
#endif
- if (DQUOT_ALLOC_SPACE_NODIRTY(inode, n_pasted_size)) {
+ if (vfs_dq_alloc_space_nodirty(inode, n_pasted_size)) {
pathrelse(p_s_search_path);
return -EDQUOT;
}
n_pasted_size, inode->i_uid,
key2type(&(p_s_key->on_disk_key)));
#endif
- DQUOT_FREE_SPACE_NODIRTY(inode, n_pasted_size);
+ vfs_dq_free_space_nodirty(inode, n_pasted_size);
return retval;
}
#endif
/* We can't dirty inode here. It would be immediately written but
* appropriate stat item isn't inserted yet... */
- if (DQUOT_ALLOC_SPACE_NODIRTY(inode, quota_bytes)) {
+ if (vfs_dq_alloc_space_nodirty(inode, quota_bytes)) {
pathrelse(p_s_path);
return -EDQUOT;
}
quota_bytes, inode->i_uid, head2type(p_s_ih));
#endif
if (inode)
- DQUOT_FREE_SPACE_NODIRTY(inode, quota_bytes);
+ vfs_dq_free_space_nodirty(inode, quota_bytes);
return retval;
}
retval = remove_save_link_only(s, &save_link_key, 0);
continue;
}
- DQUOT_INIT(inode);
+ vfs_dq_init(inode);
if (truncate && S_ISDIR(inode->i_mode)) {
/* We got a truncate request for a dir which is impossible.
#ifdef CONFIG_QUOTA
#define QTYPE2NAME(t) ((t)==USRQUOTA?"user":"group")
-static int reiserfs_dquot_initialize(struct inode *, int);
-static int reiserfs_dquot_drop(struct inode *);
static int reiserfs_write_dquot(struct dquot *);
static int reiserfs_acquire_dquot(struct dquot *);
static int reiserfs_release_dquot(struct dquot *);
static int reiserfs_quota_on(struct super_block *, int, int, char *, int);
static struct dquot_operations reiserfs_quota_operations = {
- .initialize = reiserfs_dquot_initialize,
- .drop = reiserfs_dquot_drop,
+ .initialize = dquot_initialize,
+ .drop = dquot_drop,
.alloc_space = dquot_alloc_space,
.alloc_inode = dquot_alloc_inode,
.free_space = dquot_free_space,
}
#ifdef CONFIG_QUOTA
-static int reiserfs_dquot_initialize(struct inode *inode, int type)
-{
- struct reiserfs_transaction_handle th;
- int ret, err;
-
- /* We may create quota structure so we need to reserve enough blocks */
- reiserfs_write_lock(inode->i_sb);
- ret =
- journal_begin(&th, inode->i_sb,
- 2 * REISERFS_QUOTA_INIT_BLOCKS(inode->i_sb));
- if (ret)
- goto out;
- ret = dquot_initialize(inode, type);
- err =
- journal_end(&th, inode->i_sb,
- 2 * REISERFS_QUOTA_INIT_BLOCKS(inode->i_sb));
- if (!ret && err)
- ret = err;
- out:
- reiserfs_write_unlock(inode->i_sb);
- return ret;
-}
-
-static int reiserfs_dquot_drop(struct inode *inode)
-{
- struct reiserfs_transaction_handle th;
- int ret, err;
-
- /* We may delete quota structure so we need to reserve enough blocks */
- reiserfs_write_lock(inode->i_sb);
- ret =
- journal_begin(&th, inode->i_sb,
- 2 * REISERFS_QUOTA_DEL_BLOCKS(inode->i_sb));
- if (ret) {
- /*
- * We call dquot_drop() anyway to at least release references
- * to quota structures so that umount does not hang.
- */
- dquot_drop(inode);
- goto out;
- }
- ret = dquot_drop(inode);
- err =
- journal_end(&th, inode->i_sb,
- 2 * REISERFS_QUOTA_DEL_BLOCKS(inode->i_sb));
- if (!ret && err)
- ret = err;
- out:
- reiserfs_write_unlock(inode->i_sb);
- return ret;
-}
-
static int reiserfs_write_dquot(struct dquot *dquot)
{
struct reiserfs_transaction_handle th;
if (atomic_dec_and_lock(&s->s_active, &sb_lock)) {
s->s_count -= S_BIAS-1;
spin_unlock(&sb_lock);
- DQUOT_OFF(s, 0);
+ vfs_dq_off(s, 0);
down_write(&s->s_umount);
fs->kill_sb(s);
put_filesystem(fs);
void __fsync_super(struct super_block *sb)
{
sync_inodes_sb(sb, 0);
- DQUOT_SYNC(sb);
+ vfs_dq_sync(sb);
lock_super(sb);
if (sb->s_dirt && sb->s_op->write_super)
sb->s_op->write_super(sb);
mark_files_ro(sb);
else if (!fs_may_remount_ro(sb))
return -EBUSY;
- retval = DQUOT_OFF(sb, 1);
+ retval = vfs_dq_off(sb, 1);
if (retval < 0 && retval != -ENOSYS)
return -EBUSY;
}
}
sb->s_flags = (sb->s_flags & ~MS_RMT_MASK) | (flags & MS_RMT_MASK);
if (remount_rw)
- DQUOT_ON_REMOUNT(sb);
+ vfs_dq_quota_on_remount(sb);
return 0;
}
{
wakeup_pdflush(0);
sync_inodes(0); /* All mappings, inodes and their blockdevs */
- DQUOT_SYNC(NULL);
+ vfs_dq_sync(NULL);
sync_supers(); /* Write the superblocks */
sync_filesystems(0); /* Start syncing the filesystems */
sync_filesystems(wait); /* Waitingly sync the filesystems */
((char *)bh->b_data)[(bit + i) >> 3]);
} else {
if (inode)
- DQUOT_FREE_BLOCK(inode, 1);
+ vfs_dq_free_block(inode, 1);
udf_add_free_space(sbi, sbi->s_partition, 1);
}
}
while (bit < (sb->s_blocksize << 3) && block_count > 0) {
if (!udf_test_bit(bit, bh->b_data))
goto out;
- else if (DQUOT_PREALLOC_BLOCK(inode, 1))
+ else if (vfs_dq_prealloc_block(inode, 1))
goto out;
else if (!udf_clear_bit(bit, bh->b_data)) {
udf_debug("bit already cleared for block %d\n", bit);
- DQUOT_FREE_BLOCK(inode, 1);
+ vfs_dq_free_block(inode, 1);
goto out;
}
block_count--;
/*
* Check quota for allocation of this block.
*/
- if (inode && DQUOT_ALLOC_BLOCK(inode, 1)) {
+ if (inode && vfs_dq_alloc_block(inode, 1)) {
mutex_unlock(&sbi->s_alloc_mutex);
*err = -EDQUOT;
return 0;
/* We do this up front - There are some error conditions that
could occure, but.. oh well */
if (inode)
- DQUOT_FREE_BLOCK(inode, count);
+ vfs_dq_free_block(inode, count);
if (udf_add_free_space(sbi, sbi->s_partition, count))
mark_buffer_dirty(sbi->s_lvid_bh);
epos.offset -= adsize;
alloc_count = (elen >> sb->s_blocksize_bits);
- if (inode && DQUOT_PREALLOC_BLOCK(inode,
+ if (inode && vfs_dq_prealloc_block(inode,
alloc_count > block_count ? block_count : alloc_count))
alloc_count = 0;
else if (alloc_count > block_count) {
goal_eloc.logicalBlockNum++;
goal_elen -= sb->s_blocksize;
- if (inode && DQUOT_ALLOC_BLOCK(inode, 1)) {
+ if (inode && vfs_dq_alloc_block(inode, 1)) {
brelse(goal_epos.bh);
mutex_unlock(&sbi->s_alloc_mutex);
*err = -EDQUOT;
* Note: we must free any quota before locking the superblock,
* as writing the quota to disk may need the lock as well.
*/
- DQUOT_FREE_INODE(inode);
- DQUOT_DROP(inode);
+ vfs_dq_free_inode(inode);
+ vfs_dq_drop(inode);
clear_inode(inode);
insert_inode_hash(inode);
mark_inode_dirty(inode);
- if (DQUOT_ALLOC_INODE(inode)) {
- DQUOT_DROP(inode);
+ if (vfs_dq_alloc_inode(inode)) {
+ vfs_dq_drop(inode);
inode->i_flags |= S_NOQUOTA;
inode->i_nlink = 0;
iput(inode);
"bit already cleared for fragment %u", i);
}
- DQUOT_FREE_BLOCK (inode, count);
+ vfs_dq_free_block(inode, count);
fs32_add(sb, &ucg->cg_cs.cs_nffree, count);
ubh_setblock(UCPI_UBH(ucpi), ucpi->c_freeoff, blkno);
if ((UFS_SB(sb)->s_flags & UFS_CG_MASK) == UFS_CG_44BSD)
ufs_clusteracct (sb, ucpi, blkno, 1);
- DQUOT_FREE_BLOCK(inode, uspi->s_fpb);
+ vfs_dq_free_block(inode, uspi->s_fpb);
fs32_add(sb, &ucg->cg_cs.cs_nbfree, 1);
uspi->cs_total.cs_nbfree++;
fs32_add(sb, &ucg->cg_frsum[fragsize - count], 1);
for (i = oldcount; i < newcount; i++)
ubh_clrbit (UCPI_UBH(ucpi), ucpi->c_freeoff, fragno + i);
- if(DQUOT_ALLOC_BLOCK(inode, count)) {
+ if (vfs_dq_alloc_block(inode, count)) {
*err = -EDQUOT;
return 0;
}
for (i = count; i < uspi->s_fpb; i++)
ubh_setbit (UCPI_UBH(ucpi), ucpi->c_freeoff, goal + i);
i = uspi->s_fpb - count;
- DQUOT_FREE_BLOCK(inode, i);
+ vfs_dq_free_block(inode, i);
fs32_add(sb, &ucg->cg_cs.cs_nffree, i);
uspi->cs_total.cs_nffree += i;
result = ufs_bitmap_search (sb, ucpi, goal, allocsize);
if (result == INVBLOCK)
return 0;
- if(DQUOT_ALLOC_BLOCK(inode, count)) {
+ if (vfs_dq_alloc_block(inode, count)) {
*err = -EDQUOT;
return 0;
}
ubh_clrblock (UCPI_UBH(ucpi), ucpi->c_freeoff, blkno);
if ((UFS_SB(sb)->s_flags & UFS_CG_MASK) == UFS_CG_44BSD)
ufs_clusteracct (sb, ucpi, blkno, -1);
- if(DQUOT_ALLOC_BLOCK(inode, uspi->s_fpb)) {
+ if (vfs_dq_alloc_block(inode, uspi->s_fpb)) {
*err = -EDQUOT;
return INVBLOCK;
}
is_directory = S_ISDIR(inode->i_mode);
- DQUOT_FREE_INODE(inode);
- DQUOT_DROP(inode);
+ vfs_dq_free_inode(inode);
+ vfs_dq_drop(inode);
clear_inode (inode);
unlock_super (sb);
- if (DQUOT_ALLOC_INODE(inode)) {
- DQUOT_DROP(inode);
+ if (vfs_dq_alloc_inode(inode)) {
+ vfs_dq_drop(inode);
err = -EDQUOT;
goto fail_without_unlock;
}
qsize_t dqb_bhardlimit; /* absolute limit on disk blks alloc */
qsize_t dqb_bsoftlimit; /* preferred limit on disk blks */
qsize_t dqb_curspace; /* current used space */
+ qsize_t dqb_rsvspace; /* current reserved space for delalloc*/
qsize_t dqb_ihardlimit; /* absolute limit on allocated inodes */
qsize_t dqb_isoftlimit; /* preferred inode limit */
qsize_t dqb_curinodes; /* current # allocated inodes */
struct mem_dqblk dq_dqb; /* Diskquota usage */
};
-#define NODQUOT (struct dquot *)NULL
-
#define QUOTA_OK 0
#define NO_QUOTA 1
int (*release_dquot) (struct dquot *); /* Quota is going to be deleted from disk */
int (*mark_dirty) (struct dquot *); /* Dquot is marked dirty */
int (*write_info) (struct super_block *, int); /* Write of quota "superblock" */
+ /* reserve quota for delayed block allocation */
+ int (*reserve_space) (struct inode *, qsize_t, int);
+ /* claim reserved quota for delayed alloc */
+ int (*claim_space) (struct inode *, qsize_t);
+ /* release rsved quota for delayed alloc */
+ void (*release_rsv) (struct inode *, qsize_t);
+ /* get reserved quota for delayed alloc */
+ qsize_t (*get_reserved_space) (struct inode *);
};
/* Operations handling requests from userspace */
int dquot_alloc_space(struct inode *inode, qsize_t number, int prealloc);
int dquot_alloc_inode(const struct inode *inode, qsize_t number);
+int dquot_reserve_space(struct inode *inode, qsize_t number, int prealloc);
+int dquot_claim_space(struct inode *inode, qsize_t number);
+void dquot_release_reserved_space(struct inode *inode, qsize_t number);
+qsize_t dquot_get_reserved_space(struct inode *inode);
+
int dquot_free_space(struct inode *inode, qsize_t number);
int dquot_free_inode(const struct inode *inode, qsize_t number);
return ret;
}
+static inline int vfs_dq_reserve_space(struct inode *inode, qsize_t nr)
+{
+ if (sb_any_quota_active(inode->i_sb)) {
+ /* Used space is updated in alloc_space() */
+ if (inode->i_sb->dq_op->reserve_space(inode, nr, 0) == NO_QUOTA)
+ return 1;
+ }
+ return 0;
+}
+
static inline int vfs_dq_alloc_inode(struct inode *inode)
{
if (sb_any_quota_active(inode->i_sb)) {
return 0;
}
+/*
+ * Convert in-memory reserved quotas to real consumed quotas
+ */
+static inline int vfs_dq_claim_space(struct inode *inode, qsize_t nr)
+{
+ if (sb_any_quota_active(inode->i_sb)) {
+ if (inode->i_sb->dq_op->claim_space(inode, nr) == NO_QUOTA)
+ return 1;
+ } else
+ inode_add_bytes(inode, nr);
+
+ mark_inode_dirty(inode);
+ return 0;
+}
+
+/*
+ * Release reserved (in-memory) quotas
+ */
+static inline
+void vfs_dq_release_reservation_space(struct inode *inode, qsize_t nr)
+{
+ if (sb_any_quota_active(inode->i_sb))
+ inode->i_sb->dq_op->release_rsv(inode, nr);
+}
+
static inline void vfs_dq_free_space_nodirty(struct inode *inode, qsize_t nr)
{
if (sb_any_quota_active(inode->i_sb))
return 0;
}
+static inline int vfs_dq_reserve_space(struct inode *inode, qsize_t nr)
+{
+ return 0;
+}
+
+static inline int vfs_dq_claim_space(struct inode *inode, qsize_t nr)
+{
+ return vfs_dq_alloc_space(inode, nr);
+}
+
+static inline
+int vfs_dq_release_reservation_space(struct inode *inode, qsize_t nr)
+{
+ return 0;
+}
+
static inline void vfs_dq_free_space_nodirty(struct inode *inode, qsize_t nr)
{
inode_sub_bytes(inode, nr);
static inline int vfs_dq_prealloc_block_nodirty(struct inode *inode, qsize_t nr)
{
- return vfs_dq_prealloc_space_nodirty(inode,
- nr << inode->i_sb->s_blocksize_bits);
+ return vfs_dq_prealloc_space_nodirty(inode, nr << inode->i_blkbits);
}
static inline int vfs_dq_prealloc_block(struct inode *inode, qsize_t nr)
{
- return vfs_dq_prealloc_space(inode,
- nr << inode->i_sb->s_blocksize_bits);
+ return vfs_dq_prealloc_space(inode, nr << inode->i_blkbits);
}
static inline int vfs_dq_alloc_block_nodirty(struct inode *inode, qsize_t nr)
{
- return vfs_dq_alloc_space_nodirty(inode,
- nr << inode->i_sb->s_blocksize_bits);
+ return vfs_dq_alloc_space_nodirty(inode, nr << inode->i_blkbits);
}
static inline int vfs_dq_alloc_block(struct inode *inode, qsize_t nr)
{
- return vfs_dq_alloc_space(inode,
- nr << inode->i_sb->s_blocksize_bits);
+ return vfs_dq_alloc_space(inode, nr << inode->i_blkbits);
+}
+
+static inline int vfs_dq_reserve_block(struct inode *inode, qsize_t nr)
+{
+ return vfs_dq_reserve_space(inode, nr << inode->i_blkbits);
+}
+
+static inline int vfs_dq_claim_block(struct inode *inode, qsize_t nr)
+{
+ return vfs_dq_claim_space(inode, nr << inode->i_blkbits);
+}
+
+static inline
+void vfs_dq_release_reservation_block(struct inode *inode, qsize_t nr)
+{
+ vfs_dq_release_reservation_space(inode, nr << inode->i_blkbits);
}
static inline void vfs_dq_free_block_nodirty(struct inode *inode, qsize_t nr)
{
- vfs_dq_free_space_nodirty(inode, nr << inode->i_sb->s_blocksize_bits);
+ vfs_dq_free_space_nodirty(inode, nr << inode->i_blkbits);
}
static inline void vfs_dq_free_block(struct inode *inode, qsize_t nr)
{
- vfs_dq_free_space(inode, nr << inode->i_sb->s_blocksize_bits);
+ vfs_dq_free_space(inode, nr << inode->i_blkbits);
}
-/*
- * Define uppercase equivalents for compatibility with old function names
- * Can go away when we think all users have been converted (15/04/2008)
- */
-#define DQUOT_INIT(inode) vfs_dq_init(inode)
-#define DQUOT_DROP(inode) vfs_dq_drop(inode)
-#define DQUOT_PREALLOC_SPACE_NODIRTY(inode, nr) \
- vfs_dq_prealloc_space_nodirty(inode, nr)
-#define DQUOT_PREALLOC_SPACE(inode, nr) vfs_dq_prealloc_space(inode, nr)
-#define DQUOT_ALLOC_SPACE_NODIRTY(inode, nr) \
- vfs_dq_alloc_space_nodirty(inode, nr)
-#define DQUOT_ALLOC_SPACE(inode, nr) vfs_dq_alloc_space(inode, nr)
-#define DQUOT_PREALLOC_BLOCK_NODIRTY(inode, nr) \
- vfs_dq_prealloc_block_nodirty(inode, nr)
-#define DQUOT_PREALLOC_BLOCK(inode, nr) vfs_dq_prealloc_block(inode, nr)
-#define DQUOT_ALLOC_BLOCK_NODIRTY(inode, nr) \
- vfs_dq_alloc_block_nodirty(inode, nr)
-#define DQUOT_ALLOC_BLOCK(inode, nr) vfs_dq_alloc_block(inode, nr)
-#define DQUOT_ALLOC_INODE(inode) vfs_dq_alloc_inode(inode)
-#define DQUOT_FREE_SPACE_NODIRTY(inode, nr) \
- vfs_dq_free_space_nodirty(inode, nr)
-#define DQUOT_FREE_SPACE(inode, nr) vfs_dq_free_space(inode, nr)
-#define DQUOT_FREE_BLOCK_NODIRTY(inode, nr) \
- vfs_dq_free_block_nodirty(inode, nr)
-#define DQUOT_FREE_BLOCK(inode, nr) vfs_dq_free_block(inode, nr)
-#define DQUOT_FREE_INODE(inode) vfs_dq_free_inode(inode)
-#define DQUOT_TRANSFER(inode, iattr) vfs_dq_transfer(inode, iattr)
-#define DQUOT_SYNC(sb) vfs_dq_sync(sb)
-#define DQUOT_OFF(sb, remount) vfs_dq_off(sb, remount)
-#define DQUOT_ON_REMOUNT(sb) vfs_dq_quota_on_remount(sb)
-
#endif /* _LINUX_QUOTAOPS_ */
git://ftp.safe.ca / safe / jmp / linux-2.6 / commitdiff