diff options
author | Christoph Hellwig <hch@infradead.org> | 2010-03-03 09:05:05 -0500 |
---|---|---|
committer | Jan Kara <jack@suse.cz> | 2010-03-05 00:20:30 +0100 |
commit | 9f7547580263d4a55efe06ce5cfd567f568be6e8 (patch) | |
tree | 6f926a075eeed815d0a6680c06f235da0e5ea6d9 /fs/quota | |
parent | 257ba15cedf1288f0c96118d7e63947231d27278 (diff) | |
download | linux-9f7547580263d4a55efe06ce5cfd567f568be6e8.tar.gz linux-9f7547580263d4a55efe06ce5cfd567f568be6e8.tar.bz2 linux-9f7547580263d4a55efe06ce5cfd567f568be6e8.zip |
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.c | 52 |
1 files changed, 25 insertions, 27 deletions
diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c index 78ce4c48ad77..cd83c5b871ba 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; |