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| author |   Jan Kara <jack@suse.cz> | 2017-06-08 15:30:45 +0200 |
|---|---|---|
| committer | Jan Kara <jack@suse.cz> | 2017-08-17 19:01:00 +0200 |
| commit | e342e38df925973b86cd46d40bbe7f083414e2ad (patch) | |
| tree | ace185b868c9439b20fc9febf997e29770d4dc37 /fs/quota/quota_v2.c | |
| parent | quota: Protect dquot writeout with dq_lock (diff) | |
| download | linux-dev-e342e38df925973b86cd46d40bbe7f083414e2ad.tar.xz linux-dev-e342e38df925973b86cd46d40bbe7f083414e2ad.zip | |
quota: Push dqio_sem down to ->read_dqblk()
Push down acquisition of dqio_sem into ->read_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/quota_v2.c')
| -rw-r--r-- | fs/quota/quota_v2.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/fs/quota/quota_v2.c b/fs/quota/quota_v2.c index ca71bf881ad1..b2cd34f6b3da 100644 --- a/fs/quota/quota_v2.c +++ b/fs/quota/quota_v2.c @@ -285,7 +285,15 @@ static int v2r1_is_id(void *dp, struct dquot *dquot) static int v2_read_dquot(struct dquot *dquot) { - return qtree_read_dquot(sb_dqinfo(dquot->dq_sb, dquot->dq_id.type)->dqi_priv, dquot); + struct quota_info *dqopt = sb_dqopt(dquot->dq_sb); + int ret; + + down_read(&dqopt->dqio_sem); + ret = qtree_read_dquot( + sb_dqinfo(dquot->dq_sb, dquot->dq_id.type)->dqi_priv, + dquot); + up_read(&dqopt->dqio_sem); + return ret; } static int v2_write_dquot(struct dquot *dquot) |