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authorChristoph Hellwig <hch@infradead.org>2010-03-03 09:05:05 -0500
committerJan Kara <jack@suse.cz>2010-03-05 00:20:30 +0100
commit9f7547580263d4a55efe06ce5cfd567f568be6e8 (patch)
tree6f926a075eeed815d0a6680c06f235da0e5ea6d9 /fs/quota
parent257ba15cedf1288f0c96118d7e63947231d27278 (diff)
downloadop-kernel-dev-9f7547580263d4a55efe06ce5cfd567f568be6e8.zip
op-kernel-dev-9f7547580263d4a55efe06ce5cfd567f568be6e8.tar.gz
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>
Diffstat (limited to 'fs/quota')
-rw-r--r--fs/quota/dquot.c52
1 files changed, 25 insertions, 27 deletions
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 @@ EXPORT_SYMBOL(dquot_initialize);
/*
* 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];
@@ -1370,32 +1370,31 @@ int dquot_drop(struct inode *inode)
}
up_write(&sb_dqopt(inode->i_sb)->dqptr_sem);
dqput_all(put);
- return 0;
}
-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);
+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);
/*
* inode_reserved_space is managed internally by quota, and protected by
@@ -1812,7 +1811,6 @@ EXPORT_SYMBOL(dquot_commit_info);
*/
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 @@ static int vfs_load_quota_inode(struct inode *inode, int type, int format_id,
* 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;
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