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authorJan Kara <jack@suse.cz>2017-06-09 08:45:43 +0200
committerJan Kara <jack@suse.cz>2017-08-17 19:11:23 +0200
commit9a8ae30e73cb8827dd0a8ae5fd505db457cfb7ed (patch)
treeebc569647ebbffa64b3cbfe81873a97aacb0c3f7 /fs/quota
parentf14618c6823ee0f9f92a87aad7d5ad26916ccff1 (diff)
quota: Push dqio_sem down to ->write_file_info()
Push down acquisition of dqio_sem into ->write_file_info() callback. Mostly for consistency with other operations. Reviewed-by: Andreas Dilger <adilger@dilger.ca> Signed-off-by: Jan Kara <jack@suse.cz>
Diffstat (limited to 'fs/quota')
-rw-r--r--fs/quota/dquot.c10
-rw-r--r--fs/quota/quota_v1.c2
-rw-r--r--fs/quota/quota_v2.c5
3 files changed, 7 insertions, 10 deletions
diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c
index 332f7026edad..1e1ff97098ec 100644
--- a/fs/quota/dquot.c
+++ b/fs/quota/dquot.c
@@ -415,10 +415,8 @@ int dquot_acquire(struct dquot *dquot)
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);
}
if (ret < 0)
goto out_iolock;
@@ -482,10 +480,8 @@ int dquot_release(struct dquot *dquot)
ret = dqopt->ops[dquot->dq_id.type]->release_dqblk(dquot);
/* Write the info */
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);
}
if (ret >= 0)
ret = ret2;
@@ -2054,13 +2050,9 @@ EXPORT_SYMBOL(dquot_transfer);
*/
int dquot_commit_info(struct super_block *sb, int type)
{
- int ret;
struct quota_info *dqopt = sb_dqopt(sb);
- down_write(&dqopt->dqio_sem);
- ret = dqopt->ops[type]->write_file_info(sb, type);
- up_write(&dqopt->dqio_sem);
- return ret;
+ return dqopt->ops[type]->write_file_info(sb, type);
}
EXPORT_SYMBOL(dquot_commit_info);
diff --git a/fs/quota/quota_v1.c b/fs/quota/quota_v1.c
index 12d69cda57cc..fe68bf544b29 100644
--- a/fs/quota/quota_v1.c
+++ b/fs/quota/quota_v1.c
@@ -186,6 +186,7 @@ static int v1_write_file_info(struct super_block *sb, int type)
struct v1_disk_dqblk dqblk;
int ret;
+ down_write(&dqopt->dqio_sem);
dqopt->info[type].dqi_flags &= ~DQF_INFO_DIRTY;
ret = sb->s_op->quota_read(sb, type, (char *)&dqblk,
sizeof(struct v1_disk_dqblk), v1_dqoff(0));
@@ -203,6 +204,7 @@ static int v1_write_file_info(struct super_block *sb, int type)
else if (ret > 0)
ret = -EIO;
out:
+ up_write(&dqopt->dqio_sem);
return ret;
}
diff --git a/fs/quota/quota_v2.c b/fs/quota/quota_v2.c
index f82638e43c07..5e47012d2f57 100644
--- a/fs/quota/quota_v2.c
+++ b/fs/quota/quota_v2.c
@@ -154,10 +154,12 @@ static int v2_read_file_info(struct super_block *sb, int type)
static int v2_write_file_info(struct super_block *sb, int type)
{
struct v2_disk_dqinfo dinfo;
- struct mem_dqinfo *info = sb_dqinfo(sb, type);
+ struct quota_info *dqopt = sb_dqopt(sb);
+ struct mem_dqinfo *info = &dqopt->info[type];
struct qtree_mem_dqinfo *qinfo = info->dqi_priv;
ssize_t size;
+ down_write(&dqopt->dqio_sem);
spin_lock(&dq_data_lock);
info->dqi_flags &= ~DQF_INFO_DIRTY;
dinfo.dqi_bgrace = cpu_to_le32(info->dqi_bgrace);
@@ -170,6 +172,7 @@ static int v2_write_file_info(struct super_block *sb, int type)
dinfo.dqi_free_entry = cpu_to_le32(qinfo->dqi_free_entry);
size = sb->s_op->quota_write(sb, type, (char *)&dinfo,
sizeof(struct v2_disk_dqinfo), V2_DQINFOOFF);
+ up_write(&dqopt->dqio_sem);
if (size != sizeof(struct v2_disk_dqinfo)) {
quota_error(sb, "Can't write info structure");
return -1;