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quota: factor out dquot_write_dquot()

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[ Upstream commit 024128477809f8073d870307c8157b8826ebfd08 ]

Refactor out dquot_write_dquot() to reduce duplicate code.

Signed-off-by: Baokun Li <libaokun1@huawei.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Message-Id: <20230630110822.3881712-2-libaokun1@huawei.com>
Stable-dep-of: dabc8b207566 ("quota: fix dqput() to follow the guarantees dquot_srcu should provide")
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Baokun Li 2023-06-30 19:08:18 +08:00 committed by Greg Kroah-Hartman
parent 53805176ec
commit a5da2849db
1 changed files with 16 additions and 23 deletions
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39
fs/quota/dquot.c
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@ -630,6 +630,18 @@ int dquot_scan_active(struct super_block *sb,
}
EXPORT_SYMBOL(dquot_scan_active);
static inline int dquot_write_dquot(struct dquot *dquot)
{
int ret = dquot->dq_sb->dq_op->write_dquot(dquot);
if (ret < 0) {
quota_error(dquot->dq_sb, "Can't write quota structure "
"(error %d). Quota may get out of sync!", ret);
/* Clear dirty bit anyway to avoid infinite loop. */
clear_dquot_dirty(dquot);
}
return ret;
}
/* Write all dquot structures to quota files */
int dquot_writeback_dquots(struct super_block *sb, int type)
{
@ -660,16 +672,9 @@ int dquot_writeback_dquots(struct super_block *sb, int type)
* use count */
dqgrab(dquot);
spin_unlock(&dq_list_lock);
err = sb->dq_op->write_dquot(dquot);
if (err) {
/*
* Clear dirty bit anyway to avoid infinite
* loop here.
*/
clear_dquot_dirty(dquot);
if (!ret)
ret = err;
}
err = dquot_write_dquot(dquot);
if (err && !ret)
ret = err;
dqput(dquot);
spin_lock(&dq_list_lock);
}
@ -767,8 +772,6 @@ static struct shrinker dqcache_shrinker = {
*/
void dqput(struct dquot *dquot)
{
int ret;
if (!dquot)
return;
#ifdef CONFIG_QUOTA_DEBUG
@ -796,17 +799,7 @@ void dqput(struct dquot *dquot)
if (dquot_dirty(dquot)) {
spin_unlock(&dq_list_lock);
/* Commit dquot before releasing */
ret = dquot->dq_sb->dq_op->write_dquot(dquot);
if (ret < 0) {
quota_error(dquot->dq_sb, "Can't write quota structure"
" (error %d). Quota may get out of sync!",
ret);
/*
* We clear dirty bit anyway, so that we avoid
* infinite loop here
*/
clear_dquot_dirty(dquot);
}
dquot_write_dquot(dquot);
goto we_slept;
}
if (test_bit(DQ_ACTIVE_B, &dquot->dq_flags)) {