linux-kernel - [PATCH] f2fs: fix to check return value in f2fs_insert

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Message-Id: <20240226031916.2420870-1-chao@kernel.org>
Date: Mon, 26 Feb 2024 11:19:16 +0800
From: Chao Yu <chao@...nel.org>
To: jaegeuk@...nel.org
Cc: linux-f2fs-devel@...ts.sourceforge.net,
	linux-kernel@...r.kernel.org,
	Chao Yu <chao@...nel.org>
Subject: [PATCH] f2fs: fix to check return value in f2fs_insert_range()

In f2fs_insert_range(), it missed to check return value of
filemap_write_and_wait_range(), fix it.

Meanwhile, just return error number once __exchange_data_block()
fails.

Signed-off-by: Chao Yu <chao@...nel.org>
---
 fs/f2fs/file.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 6ddc2092842b..0a80fdf0cdb8 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -1679,10 +1679,12 @@ static int f2fs_insert_range(struct inode *inode, loff_t offset, loff_t len)
 	}
 	filemap_invalidate_unlock(mapping);
 	f2fs_up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
+	if (ret)
+		return ret;
 
 	/* write out all moved pages, if possible */
 	filemap_invalidate_lock(mapping);
-	filemap_write_and_wait_range(mapping, offset, LLONG_MAX);
+	ret = filemap_write_and_wait_range(mapping, offset, LLONG_MAX);
 	truncate_pagecache(inode, offset);
 	filemap_invalidate_unlock(mapping);
 
-- 
2.40.1