[ 42/82] ext4: add missing save_error_info() to ext4_error()

[Ben Hutchings]

3.2-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Theodore Ts'o <tytso@xxxxxxx>

commit f3fc0210c0fc91900766c995f089c39170e68305 upstream.

The ext4_error() function is missing a call to save_error_info().
Since this is the function which marks the file system as containing
an error, this oversight (which was introduced in 2.6.36) is quite
significant, and should be backported to older stable kernels with
high urgency.

Reported-by: Ken Sumrall <ksumrall@xxxxxxxxxx>
Signed-off-by: "Theodore Ts'o" <tytso@xxxxxxx>
Cc: ksumrall@xxxxxxxxxx
Signed-off-by: Ben Hutchings <ben@xxxxxxxxxxxxxxx>
---
 fs/ext4/super.c |    1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 9f1ae6b..b8d5fc1 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -539,6 +539,7 @@ void __ext4_error(struct super_block *sb, const char *function,
 	printk(KERN_CRIT "EXT4-fs error (device %s): %s:%d: comm %s: %pV\n",
 	       sb->s_id, function, line, current->comm, &vaf);
 	va_end(args);
+	save_error_info(sb, function, line);
 
 	ext4_handle_error(sb);
 }


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