diff options
| author | NeilBrown <neilb@suse.de> | 2005-11-09 06:39:26 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-11-09 16:56:37 +0100 |
| commit | 9d88883e68f404d5581bd391713ceef470ea53a9 (patch) | |
| tree | 09217a737ca91fb1d105df601741a61e141d4946 /drivers/md/raid5.c | |
| parent | [PATCH] md: allow a manual resync with md (diff) | |
| download | linux-9d88883e68f404d5581bd391713ceef470ea53a9.tar.xz linux-9d88883e68f404d5581bd391713ceef470ea53a9.zip | |
[PATCH] md: teach raid5 the difference between 'check' and 'repair'.
With this, raid5 can be asked to check parity without repairing it. It also
keeps a count of the number of incorrect parity blocks found (mismatches) and
reports them through sysfs.
Signed-off-by: Neil Brown <neilb@suse.de>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/md/raid5.c')
| -rw-r--r-- | drivers/md/raid5.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index 121fbaa9ed59..ce154553aca5 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -1292,6 +1292,11 @@ static void handle_stripe(struct stripe_head *sh) !memcmp(pagea, pagea+4, STRIPE_SIZE-4)) { /* parity is correct (on disc, not in buffer any more) */ set_bit(STRIPE_INSYNC, &sh->state); + } else { + conf->mddev->resync_mismatches += STRIPE_SECTORS; + if (test_bit(MD_RECOVERY_CHECK, &conf->mddev->recovery)) + /* don't try to repair!! */ + set_bit(STRIPE_INSYNC, &sh->state); } } if (!test_bit(STRIPE_INSYNC, &sh->state)) { |