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ext4: save error to disk in __ext4_grp_locked_error() 

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
This commit is contained in:
Zhouyi Zhou 2018-01-10 00:34:19 -05:00 committed by Theodore Ts'o
parent f69120ce6c
commit 06f29cc81f
1 changed files with 1 additions and 0 deletions
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fs/ext4/super.c
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@ -743,6 +743,7 @@ __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