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Diffstat (limited to 'fs/reiserfs/super.c')
-rw-r--r--fs/reiserfs/super.c76
1 files changed, 48 insertions, 28 deletions
diff --git a/fs/reiserfs/super.c b/fs/reiserfs/super.c
index f0ad05f38022..59125fb36d42 100644
--- a/fs/reiserfs/super.c
+++ b/fs/reiserfs/super.c
@@ -12,6 +12,7 @@
*/
#include <linux/module.h>
+#include <linux/slab.h>
#include <linux/vmalloc.h>
#include <linux/time.h>
#include <asm/uaccess.h>
@@ -246,7 +247,7 @@ static int finish_unfinished(struct super_block *s)
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.
@@ -465,7 +466,7 @@ static void reiserfs_put_super(struct super_block *s)
struct reiserfs_transaction_handle th;
th.t_trans_id = 0;
- lock_kernel();
+ reiserfs_write_lock(s);
if (s->s_dirt)
reiserfs_write_super(s);
@@ -499,10 +500,10 @@ static void reiserfs_put_super(struct super_block *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;
@@ -554,25 +555,33 @@ static void reiserfs_dirty_inode(struct inode *inode)
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
@@ -587,6 +596,7 @@ static const struct super_operations reiserfs_sops = {
.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,
@@ -613,13 +623,6 @@ static int reiserfs_write_info(struct super_block *, int);
static int reiserfs_quota_on(struct super_block *, int, int, char *, int);
static const 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,
.write_dquot = reiserfs_write_dquot,
.acquire_dquot = reiserfs_acquire_dquot,
.release_dquot = reiserfs_release_dquot,
@@ -1168,11 +1171,14 @@ static int reiserfs_remount(struct super_block *s, int *mount_flags, char *arg)
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
@@ -1295,12 +1301,12 @@ static int reiserfs_remount(struct super_block *s, int *mount_flags, char *arg)
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;
}
@@ -1404,7 +1410,9 @@ static int read_super_block(struct super_block *s, int offset)
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;
@@ -1611,10 +1619,8 @@ static int reiserfs_fill_super(struct super_block *s, void *data, int silent)
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);
@@ -1627,6 +1633,20 @@ static int reiserfs_fill_super(struct super_block *s, void *data, int silent)
/* 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,
@@ -1852,6 +1872,8 @@ static int reiserfs_fill_super(struct super_block *s, void *data, int silent)
init_waitqueue_head(&(sbi->s_wait));
spin_lock_init(&sbi->bitmap_lock);
+ reiserfs_write_unlock(s);
+
return (0);
error:
@@ -1859,6 +1881,8 @@ 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));
@@ -2196,8 +2220,6 @@ static int __init init_reiserfs_fs(void)
}
reiserfs_proc_info_global_init();
- reiserfs_proc_register_global("version",
- reiserfs_global_version_in_proc);
ret = register_filesystem(&reiserfs_fs_type);
@@ -2205,7 +2227,6 @@ static int __init init_reiserfs_fs(void)
return 0;
}
- reiserfs_proc_unregister_global("version");
reiserfs_proc_info_global_done();
destroy_inodecache();
@@ -2214,7 +2235,6 @@ static int __init init_reiserfs_fs(void)
static void __exit exit_reiserfs_fs(void)
{
- reiserfs_proc_unregister_global("version");
reiserfs_proc_info_global_done();
unregister_filesystem(&reiserfs_fs_type);
destroy_inodecache();
generated by cgit v1.2.3 (git 2.39.0) at 2025-01-06 19:48:10 +0300