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quota: Use precomputed value of sb_dqopt in dquot_quota_sync 

Signed-off-by: Jan Kara <jack@suse.cz>
This commit is contained in:
Jan Kara 2012-04-25 21:10:31 +02:00
parent e2a3fde750
commit f9ef178412
1 changed files with 6 additions and 6 deletions
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12
fs/quota/dquot.c
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@ -638,7 +638,7 @@ int dquot_quota_sync(struct super_block *sb, int type, int wait)
dqstats_inc(DQST_SYNCS);
mutex_unlock(&dqopt->dqonoff_mutex);
if (!wait || (sb_dqopt(sb)->flags & DQUOT_QUOTA_SYS_FILE))
if (!wait || (dqopt->flags & DQUOT_QUOTA_SYS_FILE))
return 0;
/* This is not very clever (and fast) but currently I don't know about
@ -652,18 +652,18 @@ int dquot_quota_sync(struct super_block *sb, int type, int wait)
* Now when everything is written we can discard the pagecache so
* that userspace sees the changes.
*/
mutex_lock(&sb_dqopt(sb)->dqonoff_mutex);
mutex_lock(&dqopt->dqonoff_mutex);
for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
if (type != -1 && cnt != type)
continue;
if (!sb_has_quota_active(sb, cnt))
continue;
mutex_lock_nested(&sb_dqopt(sb)->files[cnt]->i_mutex,
mutex_lock_nested(&dqopt->files[cnt]->i_mutex,
I_MUTEX_QUOTA);
truncate_inode_pages(&sb_dqopt(sb)->files[cnt]->i_data, 0);
mutex_unlock(&sb_dqopt(sb)->files[cnt]->i_mutex);
truncate_inode_pages(&dqopt->files[cnt]->i_data, 0);
mutex_unlock(&dqopt->files[cnt]->i_mutex);
}
mutex_unlock(&sb_dqopt(sb)->dqonoff_mutex);
mutex_unlock(&dqopt->dqonoff_mutex);
return 0;
}