From 5b8240223407239755b631f324577946b043edac Mon Sep 17 00:00:00 2001 From: Baokun Li Date: Fri, 30 Jun 2023 19:08:18 +0800 Subject: [PATCH] quota: factor out dquot_write_dquot() [ Upstream commit 024128477809f8073d870307c8157b8826ebfd08 ] Refactor out dquot_write_dquot() to reduce duplicate code. Signed-off-by: Baokun Li Signed-off-by: Jan Kara 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 --- fs/quota/dquot.c | 39 ++++++++++++++++----------------------- 1 file changed, 16 insertions(+), 23 deletions(-) diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c index b88f5a2f6032..fae2dbd66302 100644 --- a/fs/quota/dquot.c +++ b/fs/quota/dquot.c @@ -628,6 +628,18 @@ out: } 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) { @@ -658,16 +670,9 @@ 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); } @@ -765,8 +770,6 @@ static struct shrinker dqcache_shrinker = { */ void dqput(struct dquot *dquot) { - int ret; - if (!dquot) return; #ifdef CONFIG_QUOTA_DEBUG @@ -794,17 +797,7 @@ we_slept: 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)) {