linux-kernel - [PATCH] f2fs: add fsnotify_sb_error() in f2fs_save

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Message-Id: <20230511091308.10509-1-frank.li@vivo.com>
Date:   Thu, 11 May 2023 17:13:07 +0800
From:   Yangtao Li <frank.li@...o.com>
To:     Jaegeuk Kim <jaegeuk@...nel.org>, Chao Yu <chao@...nel.org>
Cc:     Yangtao Li <frank.li@...o.com>,
        linux-f2fs-devel@...ts.sourceforge.net,
        linux-kernel@...r.kernel.org
Subject: [PATCH] f2fs: add fsnotify_sb_error() in f2fs_save_errors

When an EFSCORRUPTED error occurs in f2fs, report the error to
userspace monitoring tools.

Signed-off-by: Yangtao Li <frank.li@...o.com>
---
 fs/f2fs/super.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 51812f459581..42d5aa504afe 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -28,6 +28,7 @@
 #include <linux/part_stat.h>
 #include <linux/zstd.h>
 #include <linux/lz4.h>
+#include <linux/fsnotify.h>
 
 #include "f2fs.h"
 #include "node.h"
@@ -4000,6 +4001,8 @@ void f2fs_save_errors(struct f2fs_sb_info *sbi, unsigned char flag)
 		sbi->error_dirty = true;
 	}
 	spin_unlock_irqrestore(&sbi->error_lock, flags);
+
+	fsnotify_sb_error(sbi->sb, NULL, EFSCORRUPTED);
 }
 
 static bool f2fs_update_errors(struct f2fs_sb_info *sbi)
-- 
2.39.0