From: NeilBrown <neilb@suse.de>
To: linux-raid@vger.kernel.org
Subject: [md PATCH 14/34] md/raid5: move more code into common handle_stripe
Date: Thu, 21 Jul 2011 12:32:26 +1000 [thread overview]
Message-ID: <20110721023226.6728.59699.stgit@notabene.brown> (raw)
In-Reply-To: <20110721022537.6728.90204.stgit@notabene.brown>
The difference between the RAID5 and RAID6 code here is easily
resolved using conf->max_degraded.
Signed-off-by: NeilBrown <neilb@suse.de>
---
drivers/md/raid5.c | 90 ++++++++++++++++++----------------------------------
1 files changed, 32 insertions(+), 58 deletions(-)
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index 7b562fc..e41b622 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -3177,34 +3177,6 @@ static int handle_stripe5(struct stripe_head *sh, struct stripe_head_state *s)
!test_bit(STRIPE_COMPUTE_RUN, &sh->state) &&
!test_bit(STRIPE_INSYNC, &sh->state)))
handle_parity_checks5(conf, sh, s, disks);
-
- if (s->syncing && s->locked == 0
- && test_bit(STRIPE_INSYNC, &sh->state)) {
- md_done_sync(conf->mddev, STRIPE_SECTORS,1);
- clear_bit(STRIPE_SYNCING, &sh->state);
- }
-
- /* If the failed drive is just a ReadError, then we might need to progress
- * the repair/check process
- */
- if (s->failed == 1 && !conf->mddev->ro &&
- test_bit(R5_ReadError, &sh->dev[s->failed_num[0]].flags)
- && !test_bit(R5_LOCKED, &sh->dev[s->failed_num[0]].flags)
- && test_bit(R5_UPTODATE, &sh->dev[s->failed_num[0]].flags)
- ) {
- dev = &sh->dev[s->failed_num[0]];
- if (!test_bit(R5_ReWrite, &dev->flags)) {
- set_bit(R5_Wantwrite, &dev->flags);
- set_bit(R5_ReWrite, &dev->flags);
- set_bit(R5_LOCKED, &dev->flags);
- s->locked++;
- } else {
- /* let's read it back */
- set_bit(R5_Wantread, &dev->flags);
- set_bit(R5_LOCKED, &dev->flags);
- s->locked++;
- }
- }
return 0;
}
@@ -3394,36 +3366,6 @@ static int handle_stripe6(struct stripe_head *sh, struct stripe_head_state *s)
!test_bit(STRIPE_COMPUTE_RUN, &sh->state) &&
!test_bit(STRIPE_INSYNC, &sh->state)))
handle_parity_checks6(conf, sh, s, disks);
-
- if (s->syncing && s->locked == 0
- && test_bit(STRIPE_INSYNC, &sh->state)) {
- md_done_sync(conf->mddev, STRIPE_SECTORS,1);
- clear_bit(STRIPE_SYNCING, &sh->state);
- }
-
- /* If the failed drives are just a ReadError, then we might need
- * to progress the repair/check process
- */
- if (s->failed <= 2 && !conf->mddev->ro)
- for (i = 0; i < s->failed; i++) {
- dev = &sh->dev[s->failed_num[i]];
- if (test_bit(R5_ReadError, &dev->flags)
- && !test_bit(R5_LOCKED, &dev->flags)
- && test_bit(R5_UPTODATE, &dev->flags)
- ) {
- if (!test_bit(R5_ReWrite, &dev->flags)) {
- set_bit(R5_Wantwrite, &dev->flags);
- set_bit(R5_ReWrite, &dev->flags);
- set_bit(R5_LOCKED, &dev->flags);
- s->locked++;
- } else {
- /* let's read it back */
- set_bit(R5_Wantread, &dev->flags);
- set_bit(R5_LOCKED, &dev->flags);
- s->locked++;
- }
- }
- }
return 0;
}
@@ -3466,6 +3408,38 @@ static void handle_stripe(struct stripe_head *sh)
if (done)
goto finish;
+
+
+ if (s.syncing && s.locked == 0 && test_bit(STRIPE_INSYNC, &sh->state)) {
+ md_done_sync(conf->mddev, STRIPE_SECTORS, 1);
+ clear_bit(STRIPE_SYNCING, &sh->state);
+ }
+
+ /* If the failed drives are just a ReadError, then we might need
+ * to progress the repair/check process
+ */
+ if (s.failed <= conf->max_degraded && !conf->mddev->ro)
+ for (i = 0; i < s.failed; i++) {
+ struct r5dev *dev = &sh->dev[s.failed_num[i]];
+ if (test_bit(R5_ReadError, &dev->flags)
+ && !test_bit(R5_LOCKED, &dev->flags)
+ && test_bit(R5_UPTODATE, &dev->flags)
+ ) {
+ if (!test_bit(R5_ReWrite, &dev->flags)) {
+ set_bit(R5_Wantwrite, &dev->flags);
+ set_bit(R5_ReWrite, &dev->flags);
+ set_bit(R5_LOCKED, &dev->flags);
+ s.locked++;
+ } else {
+ /* let's read it back */
+ set_bit(R5_Wantread, &dev->flags);
+ set_bit(R5_LOCKED, &dev->flags);
+ s.locked++;
+ }
+ }
+ }
+
+
/* Finish reconstruct operations initiated by the expansion process */
if (sh->reconstruct_state == reconstruct_state_result) {
struct stripe_head *sh2
next prev parent reply other threads:[~2011-07-21 2:32 UTC|newest]
Thread overview: 71+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-07-21 2:32 [md PATCH 00/34] md patches for 3.1 - part 1 NeilBrown
2011-07-21 2:32 ` [md PATCH 02/34] md/raid10: factor out common bio handling code NeilBrown
2011-07-21 2:32 ` [md PATCH 01/34] md/raid10: get rid of duplicated conditional expression NeilBrown
2011-07-21 2:32 ` [md PATCH 03/34] md/raid10: share pages between read and write bio's during recovery NeilBrown
2011-07-21 2:32 ` [md PATCH 04/34] md/raid5: use kmem_cache_zalloc() NeilBrown
2011-07-21 2:32 ` [md PATCH 08/34] md/raid5: replace sh->lock with an 'active' flag NeilBrown
2011-07-22 4:27 ` Namhyung Kim
2011-07-22 4:49 ` NeilBrown
2011-07-22 5:03 ` Namhyung Kim
2011-08-03 22:47 ` Dan Williams
2011-08-03 23:35 ` NeilBrown
2011-08-03 23:45 ` Williams, Dan J
2011-08-04 0:18 ` NeilBrown
2011-07-21 2:32 ` [md PATCH 07/34] md/raid5: Protect some more code with ->device_lock NeilBrown
2011-07-22 3:54 ` Namhyung Kim
2011-07-21 2:32 ` [md PATCH 06/34] md/raid5: Remove use of sh->lock in sync_request NeilBrown
2011-07-22 3:39 ` Namhyung Kim
2011-07-21 2:32 ` [md PATCH 11/34] md/raid5: add some more fields to stripe_head_state NeilBrown
2011-07-22 5:31 ` Namhyung Kim
2011-07-26 1:35 ` NeilBrown
2011-07-21 2:32 ` [md PATCH 05/34] md/raid5: get rid of duplicated call to bio_data_dir() NeilBrown
2011-07-21 2:32 ` [md PATCH 09/34] md/raid5: move common code into handle_stripe NeilBrown
2011-07-22 4:30 ` Namhyung Kim
2011-07-21 2:32 ` [md PATCH 10/34] md/raid5: unify stripe_head_state and r6_state NeilBrown
2011-07-22 4:49 ` Namhyung Kim
2011-07-22 5:15 ` NeilBrown
2011-07-22 5:37 ` NeilBrown
2011-07-22 5:53 ` Namhyung Kim
2011-07-26 6:44 ` Namhyung Kim
2011-07-21 2:32 ` [md PATCH 15/34] md/raid5: rearrange a test in fetch_block6 NeilBrown
2011-07-22 7:37 ` Namhyung Kim
2011-07-21 2:32 ` NeilBrown [this message]
2011-07-22 7:32 ` [md PATCH 14/34] md/raid5: move more code into common handle_stripe Namhyung Kim
2011-07-26 1:48 ` NeilBrown
2011-07-21 2:32 ` [md PATCH 16/34] md/raid5: unite fetch_block5 and fetch_block6 NeilBrown
2011-07-22 8:24 ` Namhyung Kim
2011-07-21 2:32 ` [md PATCH 12/34] md/raid5: move stripe_head_state and more code into handle_stripe NeilBrown
2011-07-22 5:41 ` Namhyung Kim
2011-07-21 2:32 ` [md PATCH 17/34] md/raid5: unite handle_stripe_dirtying5 and handle_stripe_dirtying6 NeilBrown
2011-07-22 9:10 ` Namhyung Kim
2011-07-26 1:52 ` NeilBrown
2011-07-26 2:41 ` H. Peter Anvin
2011-07-26 9:40 ` David Brown
2011-07-26 13:23 ` Namhyung Kim
2011-07-26 15:01 ` David Brown
2011-07-21 2:32 ` [md PATCH 18/34] md/raid5: move more common code into handle_stripe NeilBrown
2011-07-22 9:20 ` Namhyung Kim
2011-07-21 2:32 ` [md PATCH 13/34] md/raid5: Move code for finishing a reconstruction " NeilBrown
2011-07-22 7:09 ` Namhyung Kim
2011-07-26 1:44 ` NeilBrown
2011-07-21 2:32 ` [md PATCH 19/34] md/raid5: move some more common code " NeilBrown
2011-07-22 9:29 ` Namhyung Kim
2011-07-26 1:59 ` NeilBrown
2011-07-21 2:32 ` [md PATCH 26/34] md/raid10: Make use of new recovery_disabled handling NeilBrown
2011-07-21 2:32 ` [md PATCH 23/34] md: introduce link/unlink_rdev() helpers NeilBrown
2011-07-21 2:32 ` [md PATCH 21/34] md: use proper little-endian bitops NeilBrown
2011-07-21 2:32 ` [md PATCH 27/34] md/raid10: Improve decision on whether to fail a device with a read error NeilBrown
2011-07-21 2:32 ` [md PATCH 25/34] md: change managed of recovery_disabled NeilBrown
2011-07-21 2:32 ` [md PATCH 20/34] md/raid5: finalise new merged handle_stripe NeilBrown
2011-07-22 9:36 ` Namhyung Kim
2011-07-26 2:02 ` NeilBrown
2011-07-26 4:50 ` Namhyung Kim
2011-07-21 2:32 ` [md PATCH 22/34] md/raid: use printk_ratelimited instead of printk_ratelimit NeilBrown
2011-07-21 2:32 ` [md PATCH 24/34] md: remove ro check in md_check_recovery() NeilBrown
2011-07-21 2:32 ` [md PATCH 30/34] md/raid5: move rdev->corrected_errors counting NeilBrown
2011-07-21 2:32 ` [md PATCH 28/34] md: get rid of unnecessary casts on page_address() NeilBrown
2011-07-21 2:32 ` [md PATCH 29/34] md/raid1: move rdev->corrected_errors counting NeilBrown
2011-07-21 2:32 ` [md PATCH 33/34] MD: raid1 s/sysfs_notify_dirent/sysfs_notify_dirent_safe NeilBrown
2011-07-21 2:32 ` [md PATCH 32/34] md/raid5: Avoid BUG caused by multiple failures NeilBrown
2011-07-21 2:32 ` [md PATCH 34/34] MD bitmap: Revert DM dirty log hooks NeilBrown
2011-07-21 2:32 ` [md PATCH 31/34] md/raid10: move rdev->corrected_errors counting NeilBrown
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