4.9-stable review patch. If anyone has any objections, please let me know.
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From: Zhouyi Zhou zhouzhouyi@gmail.com
commit 06f29cc81f0350261f59643a505010531130eea0 upstream.
In the function __ext4_grp_locked_error(), __save_error_info() is called to save error info in super block block, but does not sync that information to disk to info the subsequence fsck after reboot.
This patch writes the error information to disk. After this patch, I think there is no obvious EXT4 error handle branches which leads to "Remounting filesystem read-only" will leave the disk partition miss the subsequence fsck.
Signed-off-by: Zhouyi Zhou zhouzhouyi@gmail.com Signed-off-by: Theodore Ts'o tytso@mit.edu Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- fs/ext4/super.c | 1 + 1 file changed, 1 insertion(+)
--- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -720,6 +720,7 @@ __acquires(bitlock) }
ext4_unlock_group(sb, grp); + ext4_commit_super(sb, 1); ext4_handle_error(sb); /* * We only get here in the ERRORS_RO case; relocking the group