#include <linux/init.h>
#include <linux/fs.h>
#include <linux/slab.h>
-#include <linux/ext4_jbd2.h>
-#include <linux/ext4_fs.h>
#include <linux/mbcache.h>
#include <linux/quotaops.h>
#include <linux/rwsem.h>
+#include "ext4_jbd2.h"
+#include "ext4.h"
#include "xattr.h"
#include "acl.h"
struct mb_cache_entry **);
static void ext4_xattr_rehash(struct ext4_xattr_header *,
struct ext4_xattr_entry *);
+static int ext4_xattr_list(struct dentry *dentry, char *buffer,
+ size_t buffer_size);
static struct mb_cache *ext4_xattr_cache;
static struct xattr_handler *ext4_xattr_handler_map[] = {
[EXT4_XATTR_INDEX_USER] = &ext4_xattr_user_handler,
-#ifdef CONFIG_EXT4DEV_FS_POSIX_ACL
+#ifdef CONFIG_EXT4_FS_POSIX_ACL
[EXT4_XATTR_INDEX_POSIX_ACL_ACCESS] = &ext4_xattr_acl_access_handler,
[EXT4_XATTR_INDEX_POSIX_ACL_DEFAULT] = &ext4_xattr_acl_default_handler,
#endif
[EXT4_XATTR_INDEX_TRUSTED] = &ext4_xattr_trusted_handler,
-#ifdef CONFIG_EXT4DEV_FS_SECURITY
+#ifdef CONFIG_EXT4_FS_SECURITY
[EXT4_XATTR_INDEX_SECURITY] = &ext4_xattr_security_handler,
#endif
};
struct xattr_handler *ext4_xattr_handlers[] = {
&ext4_xattr_user_handler,
&ext4_xattr_trusted_handler,
-#ifdef CONFIG_EXT4DEV_FS_POSIX_ACL
+#ifdef CONFIG_EXT4_FS_POSIX_ACL
&ext4_xattr_acl_access_handler,
&ext4_xattr_acl_default_handler,
#endif
-#ifdef CONFIG_EXT4DEV_FS_SECURITY
+#ifdef CONFIG_EXT4_FS_SECURITY
&ext4_xattr_security_handler,
#endif
NULL
ssize_t
ext4_listxattr(struct dentry *dentry, char *buffer, size_t size)
{
- return ext4_xattr_list(dentry->d_inode, buffer, size);
+ return ext4_xattr_list(dentry, buffer, size);
}
static int
ea_bdebug(bh, "b_count=%d, refcount=%d",
atomic_read(&(bh->b_count)), le32_to_cpu(BHDR(bh)->h_refcount));
if (ext4_xattr_check_block(bh)) {
-bad_block: ext4_error(inode->i_sb, __FUNCTION__,
+bad_block:
+ ext4_error(inode->i_sb,
"inode %lu: bad block %llu", inode->i_ino,
EXT4_I(inode)->i_file_acl);
error = -EIO;
void *end;
int error;
- if (!(EXT4_I(inode)->i_state & EXT4_STATE_XATTR))
+ if (!ext4_test_inode_state(inode, EXT4_STATE_XATTR))
return -ENODATA;
error = ext4_get_inode_loc(inode, &iloc);
if (error)
}
static int
-ext4_xattr_list_entries(struct inode *inode, struct ext4_xattr_entry *entry,
+ext4_xattr_list_entries(struct dentry *dentry, struct ext4_xattr_entry *entry,
char *buffer, size_t buffer_size)
{
size_t rest = buffer_size;
ext4_xattr_handler(entry->e_name_index);
if (handler) {
- size_t size = handler->list(inode, buffer, rest,
+ size_t size = handler->list(dentry, buffer, rest,
entry->e_name,
- entry->e_name_len);
+ entry->e_name_len,
+ handler->flags);
if (buffer) {
if (size > rest)
return -ERANGE;
}
static int
-ext4_xattr_block_list(struct inode *inode, char *buffer, size_t buffer_size)
+ext4_xattr_block_list(struct dentry *dentry, char *buffer, size_t buffer_size)
{
+ struct inode *inode = dentry->d_inode;
struct buffer_head *bh = NULL;
int error;
ea_bdebug(bh, "b_count=%d, refcount=%d",
atomic_read(&(bh->b_count)), le32_to_cpu(BHDR(bh)->h_refcount));
if (ext4_xattr_check_block(bh)) {
- ext4_error(inode->i_sb, __FUNCTION__,
+ ext4_error(inode->i_sb,
"inode %lu: bad block %llu", inode->i_ino,
EXT4_I(inode)->i_file_acl);
error = -EIO;
goto cleanup;
}
ext4_xattr_cache_insert(bh);
- error = ext4_xattr_list_entries(inode, BFIRST(bh), buffer, buffer_size);
+ error = ext4_xattr_list_entries(dentry, BFIRST(bh), buffer, buffer_size);
cleanup:
brelse(bh);
}
static int
-ext4_xattr_ibody_list(struct inode *inode, char *buffer, size_t buffer_size)
+ext4_xattr_ibody_list(struct dentry *dentry, char *buffer, size_t buffer_size)
{
+ struct inode *inode = dentry->d_inode;
struct ext4_xattr_ibody_header *header;
struct ext4_inode *raw_inode;
struct ext4_iloc iloc;
void *end;
int error;
- if (!(EXT4_I(inode)->i_state & EXT4_STATE_XATTR))
+ if (!ext4_test_inode_state(inode, EXT4_STATE_XATTR))
return 0;
error = ext4_get_inode_loc(inode, &iloc);
if (error)
error = ext4_xattr_check_names(IFIRST(header), end);
if (error)
goto cleanup;
- error = ext4_xattr_list_entries(inode, IFIRST(header),
+ error = ext4_xattr_list_entries(dentry, IFIRST(header),
buffer, buffer_size);
cleanup:
* Returns a negative error number on failure, or the number of bytes
* used / required on success.
*/
-int
-ext4_xattr_list(struct inode *inode, char *buffer, size_t buffer_size)
+static int
+ext4_xattr_list(struct dentry *dentry, char *buffer, size_t buffer_size)
{
int i_error, b_error;
- down_read(&EXT4_I(inode)->xattr_sem);
- i_error = ext4_xattr_ibody_list(inode, buffer, buffer_size);
+ down_read(&EXT4_I(dentry->d_inode)->xattr_sem);
+ i_error = ext4_xattr_ibody_list(dentry, buffer, buffer_size);
if (i_error < 0) {
b_error = 0;
} else {
buffer += i_error;
buffer_size -= i_error;
}
- b_error = ext4_xattr_block_list(inode, buffer, buffer_size);
+ b_error = ext4_xattr_block_list(dentry, buffer, buffer_size);
if (b_error < 0)
i_error = 0;
}
- up_read(&EXT4_I(inode)->xattr_sem);
+ up_read(&EXT4_I(dentry->d_inode)->xattr_sem);
return i_error + b_error;
}
if (ext4_journal_get_write_access(handle, EXT4_SB(sb)->s_sbh) == 0) {
EXT4_SET_COMPAT_FEATURE(sb, EXT4_FEATURE_COMPAT_EXT_ATTR);
sb->s_dirt = 1;
- ext4_journal_dirty_metadata(handle, EXT4_SB(sb)->s_sbh);
+ ext4_handle_dirty_metadata(handle, NULL, EXT4_SB(sb)->s_sbh);
}
}
ea_bdebug(bh, "refcount now=0; freeing");
if (ce)
mb_cache_entry_free(ce);
- ext4_free_blocks(handle, inode, bh->b_blocknr, 1, 1);
get_bh(bh);
- ext4_forget(handle, 1, inode, bh, bh->b_blocknr);
+ ext4_free_blocks(handle, inode, bh, 0, 1,
+ EXT4_FREE_BLOCKS_METADATA |
+ EXT4_FREE_BLOCKS_FORGET);
} else {
le32_add_cpu(&BHDR(bh)->h_refcount, -1);
- error = ext4_journal_dirty_metadata(handle, bh);
+ error = ext4_handle_dirty_metadata(handle, inode, bh);
if (IS_SYNC(inode))
- handle->h_sync = 1;
- DQUOT_FREE_BLOCK(inode, 1);
+ ext4_handle_sync(handle);
+ dquot_free_block(inode, 1);
ea_bdebug(bh, "refcount now=%d; releasing",
le32_to_cpu(BHDR(bh)->h_refcount));
if (ce)
atomic_read(&(bs->bh->b_count)),
le32_to_cpu(BHDR(bs->bh)->h_refcount));
if (ext4_xattr_check_block(bs->bh)) {
- ext4_error(sb, __FUNCTION__,
- "inode %lu: bad block %llu", inode->i_ino,
- EXT4_I(inode)->i_file_acl);
+ ext4_error(sb, "inode %lu: bad block %llu",
+ inode->i_ino, EXT4_I(inode)->i_file_acl);
error = -EIO;
goto cleanup;
}
if (error == -EIO)
goto bad_block;
if (!error)
- error = ext4_journal_dirty_metadata(handle,
- bs->bh);
+ error = ext4_handle_dirty_metadata(handle,
+ inode,
+ bs->bh);
if (error)
goto cleanup;
goto inserted;
ce = NULL;
}
ea_bdebug(bs->bh, "cloning");
- s->base = kmalloc(bs->bh->b_size, GFP_KERNEL);
+ s->base = kmalloc(bs->bh->b_size, GFP_NOFS);
error = -ENOMEM;
if (s->base == NULL)
goto cleanup;
}
} else {
/* Allocate a buffer where we construct the new block. */
- s->base = kzalloc(sb->s_blocksize, GFP_KERNEL);
+ s->base = kzalloc(sb->s_blocksize, GFP_NOFS);
/* assert(header == s->base) */
error = -ENOMEM;
if (s->base == NULL)
else {
/* The old block is released after updating
the inode. */
- error = -EDQUOT;
- if (DQUOT_ALLOC_BLOCK(inode, 1))
+ error = dquot_alloc_block(inode, 1);
+ if (error)
goto cleanup;
error = ext4_journal_get_write_access(handle,
new_bh);
ea_bdebug(new_bh, "reusing; refcount now=%d",
le32_to_cpu(BHDR(new_bh)->h_refcount));
unlock_buffer(new_bh);
- error = ext4_journal_dirty_metadata(handle,
- new_bh);
+ error = ext4_handle_dirty_metadata(handle,
+ inode,
+ new_bh);
if (error)
goto cleanup_dquot;
}
get_bh(new_bh);
} else {
/* We need to allocate a new block */
- ext4_fsblk_t goal = le32_to_cpu(
- EXT4_SB(sb)->s_es->s_first_data_block) +
- (ext4_fsblk_t)EXT4_I(inode)->i_block_group *
- EXT4_BLOCKS_PER_GROUP(sb);
- ext4_fsblk_t block = ext4_new_block(handle, inode,
- goal, &error);
+ ext4_fsblk_t goal, block;
+
+ goal = ext4_group_first_block_no(sb,
+ EXT4_I(inode)->i_block_group);
+
+ /* non-extent files can't have physical blocks past 2^32 */
+ if (!(EXT4_I(inode)->i_flags & EXT4_EXTENTS_FL))
+ goal = goal & EXT4_MAX_BLOCK_FILE_PHYS;
+
+ block = ext4_new_meta_blocks(handle, inode,
+ goal, NULL, &error);
if (error)
goto cleanup;
+
+ if (!(EXT4_I(inode)->i_flags & EXT4_EXTENTS_FL))
+ BUG_ON(block > EXT4_MAX_BLOCK_FILE_PHYS);
+
ea_idebug(inode, "creating block %d", block);
new_bh = sb_getblk(sb, block);
if (!new_bh) {
getblk_failed:
- ext4_free_blocks(handle, inode, block, 1, 1);
+ ext4_free_blocks(handle, inode, 0, block, 1,
+ EXT4_FREE_BLOCKS_METADATA);
error = -EIO;
goto cleanup;
}
set_buffer_uptodate(new_bh);
unlock_buffer(new_bh);
ext4_xattr_cache_insert(new_bh);
- error = ext4_journal_dirty_metadata(handle, new_bh);
+ error = ext4_handle_dirty_metadata(handle,
+ inode, new_bh);
if (error)
goto cleanup;
}
return error;
cleanup_dquot:
- DQUOT_FREE_BLOCK(inode, 1);
+ dquot_free_block(inode, 1);
goto cleanup;
bad_block:
- ext4_error(inode->i_sb, __FUNCTION__,
- "inode %lu: bad block %llu", inode->i_ino,
- EXT4_I(inode)->i_file_acl);
+ ext4_error(inode->i_sb, "inode %lu: bad block %llu",
+ inode->i_ino, EXT4_I(inode)->i_file_acl);
goto cleanup;
#undef header
is->s.base = is->s.first = IFIRST(header);
is->s.here = is->s.first;
is->s.end = (void *)raw_inode + EXT4_SB(inode->i_sb)->s_inode_size;
- if (EXT4_I(inode)->i_state & EXT4_STATE_XATTR) {
+ if (ext4_test_inode_state(inode, EXT4_STATE_XATTR)) {
error = ext4_xattr_check_names(IFIRST(header), is->s.end);
if (error)
return error;
header = IHDR(inode, ext4_raw_inode(&is->iloc));
if (!IS_LAST_ENTRY(s->first)) {
header->h_magic = cpu_to_le32(EXT4_XATTR_MAGIC);
- EXT4_I(inode)->i_state |= EXT4_STATE_XATTR;
+ ext4_set_inode_state(inode, EXT4_STATE_XATTR);
} else {
header->h_magic = cpu_to_le32(0);
- EXT4_I(inode)->i_state &= ~EXT4_STATE_XATTR;
+ ext4_clear_inode_state(inode, EXT4_STATE_XATTR);
}
return 0;
}
struct ext4_xattr_block_find bs = {
.s = { .not_found = -ENODATA, },
};
+ unsigned long no_expand;
int error;
if (!name)
if (strlen(name) > 255)
return -ERANGE;
down_write(&EXT4_I(inode)->xattr_sem);
+ no_expand = ext4_test_inode_state(inode, EXT4_STATE_NO_EXPAND);
+ ext4_set_inode_state(inode, EXT4_STATE_NO_EXPAND);
+
error = ext4_get_inode_loc(inode, &is.iloc);
if (error)
goto cleanup;
- if (EXT4_I(inode)->i_state & EXT4_STATE_NEW) {
+ error = ext4_journal_get_write_access(handle, is.iloc.bh);
+ if (error)
+ goto cleanup;
+
+ if (ext4_test_inode_state(inode, EXT4_STATE_NEW)) {
struct ext4_inode *raw_inode = ext4_raw_inode(&is.iloc);
memset(raw_inode, 0, EXT4_SB(inode->i_sb)->s_inode_size);
- EXT4_I(inode)->i_state &= ~EXT4_STATE_NEW;
+ ext4_clear_inode_state(inode, EXT4_STATE_NEW);
}
error = ext4_xattr_ibody_find(inode, &i, &is);
if (flags & XATTR_CREATE)
goto cleanup;
}
- error = ext4_journal_get_write_access(handle, is.iloc.bh);
- if (error)
- goto cleanup;
if (!value) {
if (!is.s.not_found)
error = ext4_xattr_ibody_set(handle, inode, &i, &is);
i.value = NULL;
error = ext4_xattr_block_set(handle, inode, &i, &bs);
} else if (error == -ENOSPC) {
+ if (EXT4_I(inode)->i_file_acl && !bs.s.base) {
+ error = ext4_xattr_block_find(inode, &i, &bs);
+ if (error)
+ goto cleanup;
+ }
error = ext4_xattr_block_set(handle, inode, &i, &bs);
if (error)
goto cleanup;
ext4_xattr_update_super_block(handle, inode->i_sb);
inode->i_ctime = ext4_current_time(inode);
if (!value)
- EXT4_I(inode)->i_state &= ~EXT4_STATE_NO_EXPAND;
+ ext4_clear_inode_state(inode, EXT4_STATE_NO_EXPAND);
error = ext4_mark_iloc_dirty(handle, inode, &is.iloc);
/*
* The bh is consumed by ext4_mark_iloc_dirty, even with
*/
is.iloc.bh = NULL;
if (IS_SYNC(inode))
- handle->h_sync = 1;
+ ext4_handle_sync(handle);
}
cleanup:
brelse(is.iloc.bh);
brelse(bs.bh);
+ if (no_expand == 0)
+ ext4_clear_inode_state(inode, EXT4_STATE_NO_EXPAND);
up_write(&EXT4_I(inode)->xattr_sem);
return error;
}
if (!bh)
goto cleanup;
if (ext4_xattr_check_block(bh)) {
- ext4_error(inode->i_sb, __FUNCTION__,
- "inode %lu: bad block %llu", inode->i_ino,
- EXT4_I(inode)->i_file_acl);
+ ext4_error(inode->i_sb, "inode %lu: bad block %llu",
+ inode->i_ino, EXT4_I(inode)->i_file_acl);
error = -EIO;
goto cleanup;
}
/* Remove the chosen entry from the inode */
error = ext4_xattr_ibody_set(handle, inode, &i, is);
+ if (error)
+ goto cleanup;
entry = IFIRST(header);
if (entry_size + EXT4_XATTR_SIZE(size) >= new_extra_isize)
goto cleanup;
kfree(b_entry_name);
kfree(buffer);
+ b_entry_name = NULL;
+ buffer = NULL;
brelse(is->iloc.bh);
kfree(is);
kfree(bs);
goto cleanup;
bh = sb_bread(inode->i_sb, EXT4_I(inode)->i_file_acl);
if (!bh) {
- ext4_error(inode->i_sb, __FUNCTION__,
- "inode %lu: block %llu read error", inode->i_ino,
- EXT4_I(inode)->i_file_acl);
+ ext4_error(inode->i_sb, "inode %lu: block %llu read error",
+ inode->i_ino, EXT4_I(inode)->i_file_acl);
goto cleanup;
}
if (BHDR(bh)->h_magic != cpu_to_le32(EXT4_XATTR_MAGIC) ||
BHDR(bh)->h_blocks != cpu_to_le32(1)) {
- ext4_error(inode->i_sb, __FUNCTION__,
- "inode %lu: bad block %llu", inode->i_ino,
- EXT4_I(inode)->i_file_acl);
+ ext4_error(inode->i_sb, "inode %lu: bad block %llu",
+ inode->i_ino, EXT4_I(inode)->i_file_acl);
goto cleanup;
}
ext4_xattr_release_block(handle, inode, bh);
}
bh = sb_bread(inode->i_sb, ce->e_block);
if (!bh) {
- ext4_error(inode->i_sb, __FUNCTION__,
+ ext4_error(inode->i_sb,
"inode %lu: block %lu read error",
inode->i_ino, (unsigned long) ce->e_block);
} else if (le32_to_cpu(BHDR(bh)->h_refcount) >=
char *name = entry->e_name;
int n;
- for (n=0; n < entry->e_name_len; n++) {
+ for (n = 0; n < entry->e_name_len; n++) {
hash = (hash << NAME_HASH_SHIFT) ^
(hash >> (8*sizeof(hash) - NAME_HASH_SHIFT)) ^
*name++;
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