| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-Id: <20250109015145.158868-3-yukuai1@huaweicloud.com>
Date: Thu, 9 Jan 2025 09:51:42 +0800
From: Yu Kuai <yukuai1@...weicloud.com>
To: song@...nel.org,
xni@...hat.com,
yukuai3@...wei.com
Cc: linux-raid@...r.kernel.org,
linux-kernel@...r.kernel.org,
yukuai1@...weicloud.com,
yi.zhang@...wei.com,
yangerkun@...wei.com
Subject: [PATCH v2 md-6.14 2/5] md/md-bitmap: remove the last parameter for bimtap_ops->endwrite()
From: Yu Kuai <yukuai3@...wei.com>
For the case that IO failed for one rdev, the bit will be mark as NEEDED
in following cases:
1) If badblocks is set and rdev is not faulty;
2) If rdev is faulty;
Case 1) is useless because synchronize data to badblocks make no sense.
Case 2) can be replaced with mddev->degraded.
Also remove R1BIO_Degraded, R10BIO_Degraded and STRIPE_DEGRADED since
case 2) no longer use them.
Signed-off-by: Yu Kuai <yukuai3@...wei.com>
---
drivers/md/md-bitmap.c | 19 ++++++++++---------
drivers/md/md-bitmap.h | 2 +-
drivers/md/raid1.c | 26 +++-----------------------
drivers/md/raid1.h | 1 -
drivers/md/raid10.c | 23 +++--------------------
drivers/md/raid10.h | 1 -
drivers/md/raid5-cache.c | 3 +--
drivers/md/raid5.c | 15 +++------------
drivers/md/raid5.h | 1 -
9 files changed, 21 insertions(+), 70 deletions(-)
diff --git a/drivers/md/md-bitmap.c b/drivers/md/md-bitmap.c
index 84fb4cc67d5e..b40a84b01085 100644
--- a/drivers/md/md-bitmap.c
+++ b/drivers/md/md-bitmap.c
@@ -1726,7 +1726,7 @@ static int bitmap_startwrite(struct mddev *mddev, sector_t offset,
}
static void bitmap_endwrite(struct mddev *mddev, sector_t offset,
- unsigned long sectors, bool success)
+ unsigned long sectors)
{
struct bitmap *bitmap = mddev->bitmap;
@@ -1745,15 +1745,16 @@ static void bitmap_endwrite(struct mddev *mddev, sector_t offset,
return;
}
- if (success && !bitmap->mddev->degraded &&
- bitmap->events_cleared < bitmap->mddev->events) {
- bitmap->events_cleared = bitmap->mddev->events;
- bitmap->need_sync = 1;
- sysfs_notify_dirent_safe(bitmap->sysfs_can_clear);
- }
-
- if (!success && !NEEDED(*bmc))
+ if (!bitmap->mddev->degraded) {
+ if (bitmap->events_cleared < bitmap->mddev->events) {
+ bitmap->events_cleared = bitmap->mddev->events;
+ bitmap->need_sync = 1;
+ sysfs_notify_dirent_safe(
+ bitmap->sysfs_can_clear);
+ }
+ } else if (!NEEDED(*bmc)) {
*bmc |= NEEDED_MASK;
+ }
if (COUNTER(*bmc) == COUNTER_MAX)
wake_up(&bitmap->overflow_wait);
diff --git a/drivers/md/md-bitmap.h b/drivers/md/md-bitmap.h
index e87a1f493d3c..31c93019c76b 100644
--- a/drivers/md/md-bitmap.h
+++ b/drivers/md/md-bitmap.h
@@ -92,7 +92,7 @@ struct bitmap_operations {
int (*startwrite)(struct mddev *mddev, sector_t offset,
unsigned long sectors);
void (*endwrite)(struct mddev *mddev, sector_t offset,
- unsigned long sectors, bool success);
+ unsigned long sectors);
bool (*start_sync)(struct mddev *mddev, sector_t offset,
sector_t *blocks, bool degraded);
void (*end_sync)(struct mddev *mddev, sector_t offset, sector_t *blocks);
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index 15ba7a001f30..4d09d85321b6 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -423,8 +423,7 @@ static void close_write(struct r1bio *r1_bio)
if (test_bit(R1BIO_BehindIO, &r1_bio->state))
mddev->bitmap_ops->end_behind_write(mddev);
/* clear the bitmap if all writes complete successfully */
- mddev->bitmap_ops->endwrite(mddev, r1_bio->sector, r1_bio->sectors,
- !test_bit(R1BIO_Degraded, &r1_bio->state));
+ mddev->bitmap_ops->endwrite(mddev, r1_bio->sector, r1_bio->sectors);
md_write_end(mddev);
}
@@ -481,8 +480,6 @@ static void raid1_end_write_request(struct bio *bio)
if (!test_bit(Faulty, &rdev->flags))
set_bit(R1BIO_WriteError, &r1_bio->state);
else {
- /* Fail the request */
- set_bit(R1BIO_Degraded, &r1_bio->state);
/* Finished with this branch */
r1_bio->bios[mirror] = NULL;
to_put = bio;
@@ -1536,11 +1533,8 @@ static void raid1_write_request(struct mddev *mddev, struct bio *bio,
write_behind = true;
r1_bio->bios[i] = NULL;
- if (!rdev || test_bit(Faulty, &rdev->flags)) {
- if (i < conf->raid_disks)
- set_bit(R1BIO_Degraded, &r1_bio->state);
+ if (!rdev || test_bit(Faulty, &rdev->flags))
continue;
- }
atomic_inc(&rdev->nr_pending);
if (test_bit(WriteErrorSeen, &rdev->flags)) {
@@ -1559,16 +1553,6 @@ static void raid1_write_request(struct mddev *mddev, struct bio *bio,
*/
max_sectors = bad_sectors;
rdev_dec_pending(rdev, mddev);
- /* We don't set R1BIO_Degraded as that
- * only applies if the disk is
- * missing, so it might be re-added,
- * and we want to know to recover this
- * chunk.
- * In this case the device is here,
- * and the fact that this chunk is not
- * in-sync is recorded in the bad
- * block log
- */
continue;
}
if (is_bad) {
@@ -2616,12 +2600,10 @@ static void handle_write_finished(struct r1conf *conf, struct r1bio *r1_bio)
* errors.
*/
fail = true;
- if (!narrow_write_error(r1_bio, m)) {
+ if (!narrow_write_error(r1_bio, m))
md_error(conf->mddev,
conf->mirrors[m].rdev);
/* an I/O failed, we can't clear the bitmap */
- set_bit(R1BIO_Degraded, &r1_bio->state);
- }
rdev_dec_pending(conf->mirrors[m].rdev,
conf->mddev);
}
@@ -2712,8 +2694,6 @@ static void raid1d(struct md_thread *thread)
list_del(&r1_bio->retry_list);
idx = sector_to_idx(r1_bio->sector);
atomic_dec(&conf->nr_queued[idx]);
- if (mddev->degraded)
- set_bit(R1BIO_Degraded, &r1_bio->state);
if (test_bit(R1BIO_WriteError, &r1_bio->state))
close_write(r1_bio);
raid_end_bio_io(r1_bio);
diff --git a/drivers/md/raid1.h b/drivers/md/raid1.h
index 5300cbaa58a4..33f318fcc268 100644
--- a/drivers/md/raid1.h
+++ b/drivers/md/raid1.h
@@ -188,7 +188,6 @@ struct r1bio {
enum r1bio_state {
R1BIO_Uptodate,
R1BIO_IsSync,
- R1BIO_Degraded,
R1BIO_BehindIO,
/* Set ReadError on bios that experience a readerror so that
* raid1d knows what to do with them.
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index c3a93b2a26a6..340a4710c222 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -429,8 +429,7 @@ static void close_write(struct r10bio *r10_bio)
struct mddev *mddev = r10_bio->mddev;
/* clear the bitmap if all writes complete successfully */
- mddev->bitmap_ops->endwrite(mddev, r10_bio->sector, r10_bio->sectors,
- !test_bit(R10BIO_Degraded, &r10_bio->state));
+ mddev->bitmap_ops->endwrite(mddev, r10_bio->sector, r10_bio->sectors);
md_write_end(mddev);
}
@@ -500,7 +499,6 @@ static void raid10_end_write_request(struct bio *bio)
set_bit(R10BIO_WriteError, &r10_bio->state);
else {
/* Fail the request */
- set_bit(R10BIO_Degraded, &r10_bio->state);
r10_bio->devs[slot].bio = NULL;
to_put = bio;
dec_rdev = 1;
@@ -1437,10 +1435,8 @@ static void raid10_write_request(struct mddev *mddev, struct bio *bio,
r10_bio->devs[i].bio = NULL;
r10_bio->devs[i].repl_bio = NULL;
- if (!rdev && !rrdev) {
- set_bit(R10BIO_Degraded, &r10_bio->state);
+ if (!rdev && !rrdev)
continue;
- }
if (rdev && test_bit(WriteErrorSeen, &rdev->flags)) {
sector_t first_bad;
sector_t dev_sector = r10_bio->devs[i].addr;
@@ -1457,14 +1453,6 @@ static void raid10_write_request(struct mddev *mddev, struct bio *bio,
* to other devices yet
*/
max_sectors = bad_sectors;
- /* We don't set R10BIO_Degraded as that
- * only applies if the disk is missing,
- * so it might be re-added, and we want to
- * know to recover this chunk.
- * In this case the device is here, and the
- * fact that this chunk is not in-sync is
- * recorded in the bad block log.
- */
continue;
}
if (is_bad) {
@@ -2964,11 +2952,8 @@ static void handle_write_completed(struct r10conf *conf, struct r10bio *r10_bio)
rdev_dec_pending(rdev, conf->mddev);
} else if (bio != NULL && bio->bi_status) {
fail = true;
- if (!narrow_write_error(r10_bio, m)) {
+ if (!narrow_write_error(r10_bio, m))
md_error(conf->mddev, rdev);
- set_bit(R10BIO_Degraded,
- &r10_bio->state);
- }
rdev_dec_pending(rdev, conf->mddev);
}
bio = r10_bio->devs[m].repl_bio;
@@ -3027,8 +3012,6 @@ static void raid10d(struct md_thread *thread)
r10_bio = list_first_entry(&tmp, struct r10bio,
retry_list);
list_del(&r10_bio->retry_list);
- if (mddev->degraded)
- set_bit(R10BIO_Degraded, &r10_bio->state);
if (test_bit(R10BIO_WriteError,
&r10_bio->state))
diff --git a/drivers/md/raid10.h b/drivers/md/raid10.h
index 2e75e88d0802..3f16ad6904a9 100644
--- a/drivers/md/raid10.h
+++ b/drivers/md/raid10.h
@@ -161,7 +161,6 @@ enum r10bio_state {
R10BIO_IsSync,
R10BIO_IsRecover,
R10BIO_IsReshape,
- R10BIO_Degraded,
/* Set ReadError on bios that experience a read error
* so that raid10d knows what to do with them.
*/
diff --git a/drivers/md/raid5-cache.c b/drivers/md/raid5-cache.c
index 4c7ecdd5c1f3..ba4f9577c737 100644
--- a/drivers/md/raid5-cache.c
+++ b/drivers/md/raid5-cache.c
@@ -314,8 +314,7 @@ void r5c_handle_cached_data_endio(struct r5conf *conf,
set_bit(R5_UPTODATE, &sh->dev[i].flags);
r5c_return_dev_pending_writes(conf, &sh->dev[i]);
conf->mddev->bitmap_ops->endwrite(conf->mddev,
- sh->sector, RAID5_STRIPE_SECTORS(conf),
- !test_bit(STRIPE_DEGRADED, &sh->state));
+ sh->sector, RAID5_STRIPE_SECTORS(conf));
}
}
}
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index 93cc7e252dd4..a5a619400d8f 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -1345,8 +1345,6 @@ static void ops_run_io(struct stripe_head *sh, struct stripe_head_state *s)
submit_bio_noacct(rbi);
}
if (!rdev && !rrdev) {
- if (op_is_write(op))
- set_bit(STRIPE_DEGRADED, &sh->state);
pr_debug("skip op %d on disc %d for sector %llu\n",
bi->bi_opf, i, (unsigned long long)sh->sector);
clear_bit(R5_LOCKED, &sh->dev[i].flags);
@@ -2884,7 +2882,6 @@ static void raid5_end_write_request(struct bio *bi)
set_bit(R5_MadeGoodRepl, &sh->dev[i].flags);
} else {
if (bi->bi_status) {
- set_bit(STRIPE_DEGRADED, &sh->state);
set_bit(WriteErrorSeen, &rdev->flags);
set_bit(R5_WriteError, &sh->dev[i].flags);
if (!test_and_set_bit(WantReplacement, &rdev->flags))
@@ -3664,8 +3661,7 @@ handle_failed_stripe(struct r5conf *conf, struct stripe_head *sh,
}
if (bitmap_end)
conf->mddev->bitmap_ops->endwrite(conf->mddev,
- sh->sector, RAID5_STRIPE_SECTORS(conf),
- false);
+ sh->sector, RAID5_STRIPE_SECTORS(conf));
bitmap_end = 0;
/* and fail all 'written' */
bi = sh->dev[i].written;
@@ -3711,8 +3707,7 @@ handle_failed_stripe(struct r5conf *conf, struct stripe_head *sh,
}
if (bitmap_end)
conf->mddev->bitmap_ops->endwrite(conf->mddev,
- sh->sector, RAID5_STRIPE_SECTORS(conf),
- false);
+ sh->sector, RAID5_STRIPE_SECTORS(conf));
/* If we were in the middle of a write the parity block might
* still be locked - so just clear all R5_LOCKED flags
*/
@@ -4062,8 +4057,7 @@ static void handle_stripe_clean_event(struct r5conf *conf,
wbi = wbi2;
}
conf->mddev->bitmap_ops->endwrite(conf->mddev,
- sh->sector, RAID5_STRIPE_SECTORS(conf),
- !test_bit(STRIPE_DEGRADED, &sh->state));
+ sh->sector, RAID5_STRIPE_SECTORS(conf));
if (head_sh->batch_head) {
sh = list_first_entry(&sh->batch_list,
struct stripe_head,
@@ -4340,7 +4334,6 @@ static void handle_parity_checks5(struct r5conf *conf, struct stripe_head *sh,
s->locked++;
set_bit(R5_Wantwrite, &dev->flags);
- clear_bit(STRIPE_DEGRADED, &sh->state);
set_bit(STRIPE_INSYNC, &sh->state);
break;
case check_state_run:
@@ -4497,7 +4490,6 @@ static void handle_parity_checks6(struct r5conf *conf, struct stripe_head *sh,
clear_bit(R5_Wantwrite, &dev->flags);
s->locked--;
}
- clear_bit(STRIPE_DEGRADED, &sh->state);
set_bit(STRIPE_INSYNC, &sh->state);
break;
@@ -4899,7 +4891,6 @@ static void break_stripe_batch_list(struct stripe_head *head_sh,
set_mask_bits(&sh->state, ~(STRIPE_EXPAND_SYNC_FLAGS |
(1 << STRIPE_PREREAD_ACTIVE) |
- (1 << STRIPE_DEGRADED) |
(1 << STRIPE_ON_UNPLUG_LIST)),
head_sh->state & (1 << STRIPE_INSYNC));
diff --git a/drivers/md/raid5.h b/drivers/md/raid5.h
index d174e586698f..69000fb90bd5 100644
--- a/drivers/md/raid5.h
+++ b/drivers/md/raid5.h
@@ -358,7 +358,6 @@ enum {
STRIPE_REPLACED,
STRIPE_PREREAD_ACTIVE,
STRIPE_DELAYED,
- STRIPE_DEGRADED,
STRIPE_BIT_DELAY,
STRIPE_EXPANDING,
STRIPE_EXPAND_SOURCE,
--
2.39.2
Powered by blists - more mailing lists