dquot: cleanup dquot drop routine
Get rid of the drop dquot operation - it is now always called from
the filesystem and if a filesystem really needs it's own (which none
currently does) it can just call into it's own routine directly.
Rename the now static low-level dquot_drop helper to __dquot_drop
and vfs_dq_drop to dquot_drop to have a consistent namespace.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jan Kara <jack@suse.cz>
diff --git a/Documentation/filesystems/Locking b/Documentation/filesystems/Locking
index 4574e02..fa10e4b 100644
--- a/Documentation/filesystems/Locking
+++ b/Documentation/filesystems/Locking
@@ -461,7 +461,6 @@
--------------------------- dquot_operations -------------------------------
prototypes:
int (*initialize) (struct inode *, int);
- int (*drop) (struct inode *);
int (*write_dquot) (struct dquot *);
int (*acquire_dquot) (struct dquot *);
int (*release_dquot) (struct dquot *);
@@ -475,7 +474,6 @@
FS recursion Held locks when called
initialize: yes maybe dqonoff_sem
-drop: yes -
write_dquot: yes dqonoff_sem or dqptr_sem
acquire_dquot: yes dqonoff_sem or dqptr_sem
release_dquot: yes dqonoff_sem or dqptr_sem
diff --git a/fs/ext2/ialloc.c b/fs/ext2/ialloc.c
index d12f980..88b7197 100644
--- a/fs/ext2/ialloc.c
+++ b/fs/ext2/ialloc.c
@@ -122,7 +122,7 @@
/* Quota is already initialized in iput() */
ext2_xattr_delete_inode(inode);
dquot_free_inode(inode);
- vfs_dq_drop(inode);
+ dquot_drop(inode);
}
es = EXT2_SB(sb)->s_es;
@@ -608,7 +608,7 @@
dquot_free_inode(inode);
fail_drop:
- vfs_dq_drop(inode);
+ dquot_drop(inode);
inode->i_flags |= S_NOQUOTA;
inode->i_nlink = 0;
unlock_new_inode(inode);
diff --git a/fs/ext2/super.c b/fs/ext2/super.c
index 98815d2..42e4a30 100644
--- a/fs/ext2/super.c
+++ b/fs/ext2/super.c
@@ -195,7 +195,7 @@
{
struct ext2_block_alloc_info *rsv = EXT2_I(inode)->i_block_alloc_info;
- vfs_dq_drop(inode);
+ dquot_drop(inode);
ext2_discard_reservation(inode);
EXT2_I(inode)->i_block_alloc_info = NULL;
if (unlikely(rsv))
diff --git a/fs/ext3/ialloc.c b/fs/ext3/ialloc.c
index 8bf00e9..7d7238f 100644
--- a/fs/ext3/ialloc.c
+++ b/fs/ext3/ialloc.c
@@ -126,7 +126,7 @@
vfs_dq_init(inode);
ext3_xattr_delete_inode(handle, inode);
dquot_free_inode(inode);
- vfs_dq_drop(inode);
+ dquot_drop(inode);
is_directory = S_ISDIR(inode->i_mode);
@@ -622,7 +622,7 @@
dquot_free_inode(inode);
fail_drop:
- vfs_dq_drop(inode);
+ dquot_drop(inode);
inode->i_flags |= S_NOQUOTA;
inode->i_nlink = 0;
unlock_new_inode(inode);
diff --git a/fs/ext3/super.c b/fs/ext3/super.c
index 2277b1a..0163d0d 100644
--- a/fs/ext3/super.c
+++ b/fs/ext3/super.c
@@ -529,7 +529,7 @@
{
struct ext3_block_alloc_info *rsv = EXT3_I(inode)->i_block_alloc_info;
- vfs_dq_drop(inode);
+ dquot_drop(inode);
ext3_discard_reservation(inode);
EXT3_I(inode)->i_block_alloc_info = NULL;
if (unlikely(rsv))
@@ -753,7 +753,6 @@
static const struct dquot_operations ext3_quota_operations = {
.initialize = dquot_initialize,
- .drop = dquot_drop,
.write_dquot = ext3_write_dquot,
.acquire_dquot = ext3_acquire_dquot,
.release_dquot = ext3_release_dquot,
diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c
index b0d744c..ca8986e 100644
--- a/fs/ext4/ialloc.c
+++ b/fs/ext4/ialloc.c
@@ -220,7 +220,7 @@
vfs_dq_init(inode);
ext4_xattr_delete_inode(handle, inode);
dquot_free_inode(inode);
- vfs_dq_drop(inode);
+ dquot_drop(inode);
is_directory = S_ISDIR(inode->i_mode);
@@ -1077,7 +1077,7 @@
dquot_free_inode(inode);
fail_drop:
- vfs_dq_drop(inode);
+ dquot_drop(inode);
inode->i_flags |= S_NOQUOTA;
inode->i_nlink = 0;
unlock_new_inode(inode);
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 56554c8..035516c8 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -761,7 +761,7 @@
static void ext4_clear_inode(struct inode *inode)
{
- vfs_dq_drop(inode);
+ dquot_drop(inode);
ext4_discard_preallocations(inode);
if (EXT4_JOURNAL(inode))
jbd2_journal_release_jbd_inode(EXT4_SB(inode->i_sb)->s_journal,
@@ -1014,7 +1014,6 @@
static const struct dquot_operations ext4_quota_operations = {
.initialize = dquot_initialize,
- .drop = dquot_drop,
#ifdef CONFIG_QUOTA
.get_reserved_space = ext4_get_reserved_space,
#endif
diff --git a/fs/jfs/inode.c b/fs/jfs/inode.c
index 2562d18..22fa412 100644
--- a/fs/jfs/inode.c
+++ b/fs/jfs/inode.c
@@ -160,7 +160,7 @@
*/
vfs_dq_init(inode);
dquot_free_inode(inode);
- vfs_dq_drop(inode);
+ dquot_drop(inode);
}
clear_inode(inode);
diff --git a/fs/jfs/jfs_inode.c b/fs/jfs/jfs_inode.c
index 7762f33..72b3089 100644
--- a/fs/jfs/jfs_inode.c
+++ b/fs/jfs/jfs_inode.c
@@ -162,7 +162,7 @@
return inode;
fail_drop:
- vfs_dq_drop(inode);
+ dquot_drop(inode);
inode->i_flags |= S_NOQUOTA;
fail_unlock:
inode->i_nlink = 0;
diff --git a/fs/jfs/super.c b/fs/jfs/super.c
index 4086fa5..266699d 100644
--- a/fs/jfs/super.c
+++ b/fs/jfs/super.c
@@ -133,7 +133,7 @@
static void jfs_clear_inode(struct inode *inode)
{
- vfs_dq_drop(inode);
+ dquot_drop(inode);
}
static int jfs_statfs(struct dentry *dentry, struct kstatfs *buf)
diff --git a/fs/ocfs2/inode.c b/fs/ocfs2/inode.c
index 13eb5d4..00eb6a0 100644
--- a/fs/ocfs2/inode.c
+++ b/fs/ocfs2/inode.c
@@ -1087,7 +1087,7 @@
mlog_bug_on_msg(OCFS2_SB(inode->i_sb) == NULL,
"Inode=%lu\n", inode->i_ino);
- vfs_dq_drop(inode);
+ dquot_drop(inode);
/* To preven remote deletes we hold open lock before, now it
* is time to unlock PR and EX open locks. */
diff --git a/fs/ocfs2/quota_global.c b/fs/ocfs2/quota_global.c
index b654bd1..4dca38f 100644
--- a/fs/ocfs2/quota_global.c
+++ b/fs/ocfs2/quota_global.c
@@ -852,7 +852,6 @@
const struct dquot_operations ocfs2_quota_operations = {
.initialize = dquot_initialize,
- .drop = dquot_drop,
.write_dquot = ocfs2_write_dquot,
.acquire_dquot = ocfs2_acquire_dquot,
.release_dquot = ocfs2_release_dquot,
diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c
index 78ce4c4..cd83c5b 100644
--- a/fs/quota/dquot.c
+++ b/fs/quota/dquot.c
@@ -1358,7 +1358,7 @@
/*
* Release all quotas referenced by inode
*/
-int dquot_drop(struct inode *inode)
+static void __dquot_drop(struct inode *inode)
{
int cnt;
struct dquot *put[MAXQUOTAS];
@@ -1370,33 +1370,32 @@
}
up_write(&sb_dqopt(inode->i_sb)->dqptr_sem);
dqput_all(put);
- return 0;
+}
+
+void dquot_drop(struct inode *inode)
+{
+ int cnt;
+
+ if (IS_NOQUOTA(inode))
+ return;
+
+ /*
+ * Test before calling to rule out calls from proc and such
+ * where we are not allowed to block. Note that this is
+ * actually reliable test even without the lock - the caller
+ * 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])
+ break;
+ }
+
+ if (cnt < MAXQUOTAS)
+ __dquot_drop(inode);
}
EXPORT_SYMBOL(dquot_drop);
-/* Wrapper to remove references to quota structures from inode */
-void vfs_dq_drop(struct inode *inode)
-{
- /* Here we can get arbitrary inode from clear_inode() so we have
- * to be careful. OTOH we don't need locking as quota operations
- * are allowed to change only at mount time */
- if (!IS_NOQUOTA(inode) && inode->i_sb && inode->i_sb->dq_op
- && inode->i_sb->dq_op->drop) {
- int cnt;
- /* Test before calling to rule out calls from proc and such
- * where we are not allowed to block. Note that this is
- * actually reliable test even without the lock - the caller
- * 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])
- break;
- if (cnt < MAXQUOTAS)
- inode->i_sb->dq_op->drop(inode);
- }
-}
-EXPORT_SYMBOL(vfs_dq_drop);
-
/*
* inode_reserved_space is managed internally by quota, and protected by
* i_lock similar to i_blocks+i_bytes.
@@ -1812,7 +1811,6 @@
*/
const struct dquot_operations dquot_operations = {
.initialize = dquot_initialize,
- .drop = dquot_drop,
.write_dquot = dquot_commit,
.acquire_dquot = dquot_acquire,
.release_dquot = dquot_release,
@@ -2029,7 +2027,7 @@
* When S_NOQUOTA is set, remove dquot references as no more
* references can be added
*/
- sb->dq_op->drop(inode);
+ __dquot_drop(inode);
}
error = -EIO;
diff --git a/fs/reiserfs/inode.c b/fs/reiserfs/inode.c
index 99a5e5a..f07c3b6 100644
--- a/fs/reiserfs/inode.c
+++ b/fs/reiserfs/inode.c
@@ -1964,7 +1964,7 @@
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 */
- vfs_dq_drop(inode);
+ dquot_drop(inode);
inode->i_flags |= S_NOQUOTA;
make_bad_inode(inode);
diff --git a/fs/reiserfs/namei.c b/fs/reiserfs/namei.c
index 9d4dcf0..9dea84e 100644
--- a/fs/reiserfs/namei.c
+++ b/fs/reiserfs/namei.c
@@ -546,7 +546,7 @@
*/
static int drop_new_inode(struct inode *inode)
{
- vfs_dq_drop(inode);
+ dquot_drop(inode);
make_bad_inode(inode);
inode->i_flags |= S_NOQUOTA;
iput(inode);
diff --git a/fs/reiserfs/super.c b/fs/reiserfs/super.c
index 6b24e70..34f7cd0 100644
--- a/fs/reiserfs/super.c
+++ b/fs/reiserfs/super.c
@@ -580,7 +580,7 @@
static void reiserfs_clear_inode(struct inode *inode)
{
- vfs_dq_drop(inode);
+ dquot_drop(inode);
}
#ifdef CONFIG_QUOTA
@@ -623,7 +623,6 @@
static const struct dquot_operations reiserfs_quota_operations = {
.initialize = dquot_initialize,
- .drop = dquot_drop,
.write_dquot = reiserfs_write_dquot,
.acquire_dquot = reiserfs_acquire_dquot,
.release_dquot = reiserfs_release_dquot,
diff --git a/fs/udf/ialloc.c b/fs/udf/ialloc.c
index e1856b8..15c6e99 100644
--- a/fs/udf/ialloc.c
+++ b/fs/udf/ialloc.c
@@ -37,7 +37,7 @@
* as writing the quota to disk may need the lock as well.
*/
dquot_free_inode(inode);
- vfs_dq_drop(inode);
+ dquot_drop(inode);
clear_inode(inode);
@@ -156,7 +156,7 @@
vfs_dq_init(inode);
ret = dquot_alloc_inode(inode);
if (ret) {
- vfs_dq_drop(inode);
+ dquot_drop(inode);
inode->i_flags |= S_NOQUOTA;
inode->i_nlink = 0;
iput(inode);
diff --git a/fs/udf/inode.c b/fs/udf/inode.c
index 859389a..1199e8e 100644
--- a/fs/udf/inode.c
+++ b/fs/udf/inode.c
@@ -109,7 +109,7 @@
(unsigned long long)iinfo->i_lenExtents);
}
- vfs_dq_drop(inode);
+ dquot_drop(inode);
kfree(iinfo->i_ext.i_data);
iinfo->i_ext.i_data = NULL;
}
diff --git a/fs/ufs/ialloc.c b/fs/ufs/ialloc.c
index 02f7788..67b4bdb 100644
--- a/fs/ufs/ialloc.c
+++ b/fs/ufs/ialloc.c
@@ -96,7 +96,7 @@
is_directory = S_ISDIR(inode->i_mode);
dquot_free_inode(inode);
- vfs_dq_drop(inode);
+ dquot_drop(inode);
clear_inode (inode);
@@ -358,7 +358,7 @@
vfs_dq_init(inode);
err = dquot_alloc_inode(inode);
if (err) {
- vfs_dq_drop(inode);
+ dquot_drop(inode);
goto fail_without_unlock;
}
diff --git a/fs/ufs/super.c b/fs/ufs/super.c
index 95d61cb..66b63a7 100644
--- a/fs/ufs/super.c
+++ b/fs/ufs/super.c
@@ -1434,7 +1434,7 @@
static void ufs_clear_inode(struct inode *inode)
{
- vfs_dq_drop(inode);
+ dquot_drop(inode);
}
#ifdef CONFIG_QUOTA
diff --git a/include/linux/quota.h b/include/linux/quota.h
index 422e6aa..aec2e9d 100644
--- a/include/linux/quota.h
+++ b/include/linux/quota.h
@@ -296,7 +296,6 @@
/* Operations working with dquots */
struct dquot_operations {
int (*initialize) (struct inode *, int);
- int (*drop) (struct inode *);
int (*write_dquot) (struct dquot *); /* Ordinary dquot write */
struct dquot *(*alloc_dquot)(struct super_block *, int); /* Allocate memory for new dquot */
void (*destroy_dquot)(struct dquot *); /* Free memory for dquot */
diff --git a/include/linux/quotaops.h b/include/linux/quotaops.h
index fa27b72..a5ebd1a 100644
--- a/include/linux/quotaops.h
+++ b/include/linux/quotaops.h
@@ -24,7 +24,7 @@
void inode_sub_rsv_space(struct inode *inode, qsize_t number);
int dquot_initialize(struct inode *inode, int type);
-int dquot_drop(struct inode *inode);
+void dquot_drop(struct inode *inode);
struct dquot *dqget(struct super_block *sb, unsigned int id, int type);
void dqput(struct dquot *dquot);
int dquot_scan_active(struct super_block *sb,
@@ -64,7 +64,6 @@
int vfs_get_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);
-void vfs_dq_drop(struct inode *inode);
int dquot_transfer(struct inode *inode, struct iattr *iattr);
int vfs_dq_quota_on_remount(struct super_block *sb);
@@ -210,7 +209,7 @@
{
}
-static inline void vfs_dq_drop(struct inode *inode)
+static inline void dquot_drop(struct inode *inode)
{
}
