Commit 5417c98c authored by Wang Xiaojun's avatar Wang Xiaojun Committed by Jaegeuk Kim
Browse files

f2fs: avoid to create an empty string as the extension_list 



When creating a file, we need to set the temperature based on
extension_list. If the empty string is a valid extension_list,
the is_extension_exist will always returns true,
which affects the separation of hot and cold.

Signed-off-by: default avatarWang Xiaojun <wangxiaojun11@huawei.com>
Reviewed-by: default avatarChao Yu <chao@kernel.org>
Signed-off-by: default avatarJaegeuk Kim <jaegeuk@kernel.org>
parent 01f6afd0

fs/f2fs/sysfs.c

+1 −1
Original line number Diff line number Diff line
@@ -351,7 +351,7 @@ static ssize_t __sbi_store(struct f2fs_attr *a, 
			set = false;

		}



		if (strlen(name) >= F2FS_EXTENSION_LEN)

		if (!strlen(name) || strlen(name) >= F2FS_EXTENSION_LEN)

			return -EINVAL;



		down_write(&sbi->sb_lock);