add header!
brassow
This patch adds the ability detect read failures during
recovery and flag the device as failed.
We add a call to fail_mirror() when 'read_err' is set
upon recovery completion. This sets the error_count
on the device. It maintains backwards compatibility
(does nothing) if the DM_RAID1_HANDLE_ERRORS flag is
not set during mirror device creation.
Using the same code put in place to handle write failures,
it ensures that the region is marked as 'not-in-sync'
and that this is reflected in the log.
Signed-off-by: Jonathan Brassow <jbrassow@xxxxxxxxxx>
Index: linux-2.6.22-rc4-mm2/drivers/md/dm-raid1.c
===================================================================
--- linux-2.6.22-rc4-mm2.orig/drivers/md/dm-raid1.c
+++ linux-2.6.22-rc4-mm2/drivers/md/dm-raid1.c
@@ -673,9 +673,11 @@ static void recovery_complete(int read_e
unsigned long write_err_ulong = (unsigned long)write_err;
int m, bit = 0;
- if (read_err)
+ if (read_err) {
/* Read error means the failure of default mirror. */
DMERR_LIMIT("Unable to read primary mirror during recovery");
+ fail_mirror(ms->default_mirror);
+ }
if (!write_err)
goto out;
--
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