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authorJan Kara <jack@suse.cz>2017-06-08 16:48:16 +0300
committerJan Kara <jack@suse.cz>2017-08-17 20:03:09 +0300
commit8fc32c2b0db2c9ee0dffebea65bcdea03a29ba5a (patch)
tree1ad92b623f562ac9f160fb4ea8e4c9073d2cb4f5 /fs/quota/dquot.c
parent47cdc11deed639ae1d4050efbc284d328c3c2fa5 (diff)
downloadlinux-8fc32c2b0db2c9ee0dffebea65bcdea03a29ba5a.tar.xz
quota: Push dqio_sem down to ->write_dqblk()
Push down acquisition of dqio_sem into ->write_dqblk() callback. It will allow quota formats to decide whether they need it or not. Reviewed-by: Andreas Dilger <adilger@dilger.ca> Signed-off-by: Jan Kara <jack@suse.cz>
Diffstat (limited to 'fs/quota/dquot.c')
-rw-r--r--fs/quota/dquot.c11
1 files changed, 4 insertions, 7 deletions
diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c
index 46046523abf0..562f5978488f 100644
--- a/fs/quota/dquot.c
+++ b/fs/quota/dquot.c
@@ -412,14 +412,14 @@ int dquot_acquire(struct dquot *dquot)
set_bit(DQ_READ_B, &dquot->dq_flags);
/* Instantiate dquot if needed */
if (!test_bit(DQ_ACTIVE_B, &dquot->dq_flags) && !dquot->dq_off) {
- down_write(&dqopt->dqio_sem);
ret = dqopt->ops[dquot->dq_id.type]->commit_dqblk(dquot);
/* Write the info if needed */
if (info_dirty(&dqopt->info[dquot->dq_id.type])) {
+ down_write(&dqopt->dqio_sem);
ret2 = dqopt->ops[dquot->dq_id.type]->write_file_info(
dquot->dq_sb, dquot->dq_id.type);
+ up_write(&dqopt->dqio_sem);
}
- up_write(&dqopt->dqio_sem);
if (ret < 0)
goto out_iolock;
if (ret2 < 0) {
@@ -456,13 +456,10 @@ int dquot_commit(struct dquot *dquot)
spin_unlock(&dq_list_lock);
/* Inactive dquot can be only if there was error during read/init
* => we have better not writing it */
- if (test_bit(DQ_ACTIVE_B, &dquot->dq_flags)) {
- down_write(&dqopt->dqio_sem);
+ if (test_bit(DQ_ACTIVE_B, &dquot->dq_flags))
ret = dqopt->ops[dquot->dq_id.type]->commit_dqblk(dquot);
- up_write(&dqopt->dqio_sem);
- } else {
+ else
ret = -EIO;
- }
out_lock:
mutex_unlock(&dquot->dq_lock);
return ret;