linux-ext4 - [PATCH] ext4: fix to detect failure of dquot

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Date:   Tue, 11 Sep 2018 08:55:01 +0900
From:   Wang Shilong <wangshilong1991@...il.com>
To:     linux-ext4@...r.kernel.org
Cc:     wshilong@....com
Subject: [PATCH] ext4: fix to detect failure of dquot_initialize in project ioctl

From: Wang Shilong <wshilong@....com>

We return most of failure of dquota_initialize() except
inode evict, this could make a bit sense, for example
we allow file removal even quota files are broken?

But it dosen't make sense to allow setting project
if quota files etc are broken.

Signed-off-by: Wang Shilong <wshilong@....com>
---
This patch based on:
https://patchwork.ozlabs.org/patch/967727/
---
 fs/ext4/ioctl.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/fs/ext4/ioctl.c b/fs/ext4/ioctl.c
index 6ef989a..2f0bb90 100644
--- a/fs/ext4/ioctl.c
+++ b/fs/ext4/ioctl.c
@@ -359,7 +359,9 @@ static int ext4_ioctl_setproject(struct file *filp, __u32 projid)
 		brelse(iloc.bh);
 	}
 
-	dquot_initialize(inode);
+	err = dquot_initialize(inode);
+	if (err)
+		return err;
 
 	handle = ext4_journal_start(inode, EXT4_HT_QUOTA,
 		EXT4_QUOTA_INIT_BLOCKS(sb) +
-- 
1.8.3.1