*/
#include <linux/module.h>
+#include <linux/slab.h>
#include <linux/vmalloc.h>
#include <linux/time.h>
#include <asm/uaccess.h>
#ifdef CONFIG_QUOTA
int i;
int ms_active_set;
+ int quota_enabled[MAXQUOTAS];
#endif
/* compose key to look for "save" links */
}
/* Turn on quotas so that they are updated correctly */
for (i = 0; i < MAXQUOTAS; i++) {
+ quota_enabled[i] = 1;
if (REISERFS_SB(s)->s_qf_names[i]) {
- int ret = reiserfs_quota_on_mount(s, i);
+ int ret;
+
+ if (sb_has_quota_active(s, i)) {
+ quota_enabled[i] = 0;
+ continue;
+ }
+ ret = reiserfs_quota_on_mount(s, i);
if (ret < 0)
reiserfs_warning(s, "reiserfs-2500",
"cannot turn on journaled "
retval = remove_save_link_only(s, &save_link_key, 0);
continue;
}
- vfs_dq_init(inode);
+ dquot_initialize(inode);
if (truncate && S_ISDIR(inode->i_mode)) {
/* We got a truncate request for a dir which is impossible.
#ifdef CONFIG_QUOTA
/* Turn quotas off */
for (i = 0; i < MAXQUOTAS; i++) {
- if (sb_dqopt(s)->files[i])
- vfs_quota_off(s, i, 0);
+ if (sb_dqopt(s)->files[i] && quota_enabled[i])
+ dquot_quota_off(s, i);
}
if (ms_active_set)
/* Restore the flag back */
struct reiserfs_transaction_handle th;
th.t_trans_id = 0;
- lock_kernel();
+ dquot_disable(s, -1, DQUOT_USAGE_ENABLED | DQUOT_LIMITS_ENABLED);
+
+ reiserfs_write_lock(s);
if (s->s_dirt)
reiserfs_write_super(s);
reiserfs_proc_info_done(s);
+ reiserfs_write_unlock(s);
+ mutex_destroy(&REISERFS_SB(s)->lock);
kfree(s->s_fs_info);
s->s_fs_info = NULL;
-
- unlock_kernel();
}
static struct kmem_cache *reiserfs_inode_cachep;
struct reiserfs_transaction_handle th;
int err = 0;
+ int lock_depth;
+
if (inode->i_sb->s_flags & MS_RDONLY) {
reiserfs_warning(inode->i_sb, "clm-6006",
"writing inode %lu on readonly FS",
inode->i_ino);
return;
}
- reiserfs_write_lock(inode->i_sb);
+ lock_depth = reiserfs_write_lock_once(inode->i_sb);
/* this is really only used for atime updates, so they don't have
** to be included in O_SYNC or fsync
*/
err = journal_begin(&th, inode->i_sb, 1);
- if (err) {
- reiserfs_write_unlock(inode->i_sb);
- return;
- }
+ if (err)
+ goto out;
+
reiserfs_update_sd(&th, inode);
journal_end(&th, inode->i_sb, 1);
- reiserfs_write_unlock(inode->i_sb);
+
+out:
+ reiserfs_write_unlock_once(inode->i_sb, lock_depth);
+}
+
+static void reiserfs_clear_inode(struct inode *inode)
+{
+ dquot_drop(inode);
}
#ifdef CONFIG_QUOTA
.destroy_inode = reiserfs_destroy_inode,
.write_inode = reiserfs_write_inode,
.dirty_inode = reiserfs_dirty_inode,
+ .clear_inode = reiserfs_clear_inode,
.delete_inode = reiserfs_delete_inode,
.put_super = reiserfs_put_super,
.write_super = reiserfs_write_super,
static int reiserfs_release_dquot(struct dquot *);
static int reiserfs_mark_dquot_dirty(struct dquot *);
static int reiserfs_write_info(struct super_block *, int);
-static int reiserfs_quota_on(struct super_block *, int, int, char *, int);
-
-static struct dquot_operations reiserfs_quota_operations = {
- .initialize = dquot_initialize,
- .drop = dquot_drop,
- .alloc_space = dquot_alloc_space,
- .alloc_inode = dquot_alloc_inode,
- .free_space = dquot_free_space,
- .free_inode = dquot_free_inode,
- .transfer = dquot_transfer,
+static int reiserfs_quota_on(struct super_block *, int, int, char *);
+
+static const struct dquot_operations reiserfs_quota_operations = {
.write_dquot = reiserfs_write_dquot,
.acquire_dquot = reiserfs_acquire_dquot,
.release_dquot = reiserfs_release_dquot,
.destroy_dquot = dquot_destroy,
};
-static struct quotactl_ops reiserfs_qctl_operations = {
+static const struct quotactl_ops reiserfs_qctl_operations = {
.quota_on = reiserfs_quota_on,
- .quota_off = vfs_quota_off,
- .quota_sync = vfs_quota_sync,
- .get_info = vfs_get_dqinfo,
- .set_info = vfs_set_dqinfo,
- .get_dqblk = vfs_get_dqblk,
- .set_dqblk = vfs_set_dqblk,
+ .quota_off = dquot_quota_off,
+ .quota_sync = dquot_quota_sync,
+ .get_info = dquot_get_dqinfo,
+ .set_info = dquot_set_dqinfo,
+ .get_dqblk = dquot_get_dqblk,
+ .set_dqblk = dquot_set_dqblk,
};
#endif
unsigned int qfmt = 0;
#ifdef CONFIG_QUOTA
int i;
+#endif
+
+ reiserfs_write_lock(s);
+#ifdef CONFIG_QUOTA
memcpy(qf_names, REISERFS_SB(s)->s_qf_names, sizeof(qf_names));
#endif
- lock_kernel();
rs = SB_DISK_SUPER_BLOCK(s);
if (!reiserfs_parse_options
if (s->s_flags & MS_RDONLY)
/* it is read-only already */
goto out_ok;
+
+ err = dquot_suspend(s, -1);
+ if (err < 0)
+ goto out_err;
+
/* try to remount file system with read-only permissions */
if (sb_umount_state(rs) == REISERFS_VALID_FS
|| REISERFS_SB(s)->s_mount_state != REISERFS_VALID_FS) {
s->s_dirt = 0;
if (!(*mount_flags & MS_RDONLY)) {
+ dquot_resume(s, -1);
finish_unfinished(s);
reiserfs_xattr_init(s, *mount_flags);
}
out_ok:
replace_mount_options(s, new_opts);
- unlock_kernel();
+ reiserfs_write_unlock(s);
return 0;
out_err:
kfree(new_opts);
- unlock_kernel();
+ reiserfs_write_unlock(s);
return err;
}
static int reread_meta_blocks(struct super_block *s)
{
ll_rw_block(READ, 1, &(SB_BUFFER_WITH_SB(s)));
+ reiserfs_write_unlock(s);
wait_on_buffer(SB_BUFFER_WITH_SB(s));
+ reiserfs_write_lock(s);
if (!buffer_uptodate(SB_BUFFER_WITH_SB(s))) {
reiserfs_warning(s, "reiserfs-2504", "error reading the super");
return 1;
save_mount_options(s, data);
sbi = kzalloc(sizeof(struct reiserfs_sb_info), GFP_KERNEL);
- if (!sbi) {
- errval = -ENOMEM;
- goto error;
- }
+ if (!sbi)
+ return -ENOMEM;
s->s_fs_info = sbi;
/* Set default values for options: non-aggressive tails, RO on errors */
REISERFS_SB(s)->s_mount_opt |= (1 << REISERFS_SMALLTAIL);
/* setup default block allocator options */
reiserfs_init_alloc_options(s);
+ mutex_init(&REISERFS_SB(s)->lock);
+ REISERFS_SB(s)->lock_depth = -1;
+
+ /*
+ * This function is called with the bkl, which also was the old
+ * locking used here.
+ * do_journal_begin() will soon check if we hold the lock (ie: was the
+ * bkl). This is likely because do_journal_begin() has several another
+ * callers because at this time, it doesn't seem to be necessary to
+ * protect against anything.
+ * Anyway, let's be conservative and lock for now.
+ */
+ reiserfs_write_lock(s);
+
jdev_name = NULL;
if (reiserfs_parse_options
(s, (char *)data, &(sbi->s_mount_opt), &blocks, &jdev_name,
init_waitqueue_head(&(sbi->s_wait));
spin_lock_init(&sbi->bitmap_lock);
+ reiserfs_write_unlock(s);
+
return (0);
error:
journal_release_error(NULL, s);
}
+ reiserfs_write_unlock(s);
+
reiserfs_free_bitmap_cache(s);
if (SB_BUFFER_WITH_SB(s))
brelse(SB_BUFFER_WITH_SB(s));
*/
static int reiserfs_quota_on_mount(struct super_block *sb, int type)
{
- return vfs_quota_on_mount(sb, REISERFS_SB(sb)->s_qf_names[type],
- REISERFS_SB(sb)->s_jquota_fmt, type);
+ return dquot_quota_on_mount(sb, REISERFS_SB(sb)->s_qf_names[type],
+ REISERFS_SB(sb)->s_jquota_fmt, type);
}
/*
* Standard function to be called on quota_on
*/
static int reiserfs_quota_on(struct super_block *sb, int type, int format_id,
- char *name, int remount)
+ char *name)
{
int err;
struct path path;
if (!(REISERFS_SB(sb)->s_mount_opt & (1 << REISERFS_QUOTA)))
return -EINVAL;
- /* No more checks needed? Path and format_id are bogus anyway... */
- if (remount)
- return vfs_quota_on(sb, type, format_id, name, 1);
+
err = kern_path(name, LOOKUP_FOLLOW, &path);
if (err)
return err;
if (err)
goto out;
}
- err = vfs_quota_on_path(sb, type, format_id, &path);
+ err = dquot_quota_on_path(sb, type, format_id, &path);
out:
path_put(&path);
return err;
}
reiserfs_proc_info_global_init();
- reiserfs_proc_register_global("version",
- reiserfs_global_version_in_proc);
ret = register_filesystem(&reiserfs_fs_type);
return 0;
}
- reiserfs_proc_unregister_global("version");
reiserfs_proc_info_global_done();
destroy_inodecache();
static void __exit exit_reiserfs_fs(void)
{
- reiserfs_proc_unregister_global("version");
reiserfs_proc_info_global_done();
unregister_filesystem(&reiserfs_fs_type);
destroy_inodecache();
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff