From: Yu Kuai <yukuai3@huawei.com> mainline inclusion from mainline-v6.9-rc1 commit 3a0f007b6979db6b5e0022d9edf4b61002be3e10 category: bugfix bugzilla: https://atomgit.com/openeuler/kernel/issues/8374 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?i... -------------------------------- The current api is_badblock() must pass in 'first_bad' and 'bad_sectors', however, many caller just want to know if there are badblocks or not, and these caller must define two local variable that will never be used. Add a new helper rdev_has_badblock() that will only return if there are badblocks or not, remove unnecessary local variables and replace is_badblock() with the new helper in many places. There are no functional changes, and the new helper will also be used later to refactor read_balance(). Co-developed-by: Paul Luse <paul.e.luse@linux.intel.com> Signed-off-by: Paul Luse <paul.e.luse@linux.intel.com> Signed-off-by: Yu Kuai <yukuai3@huawei.com> Reviewed-by: Xiao Ni <xni@redhat.com> Signed-off-by: Song Liu <song@kernel.org> Link: https://lore.kernel.org/r/20240229095714.926789-2-yukuai1@huaweicloud.com Signed-off-by: Li Nan <linan122@huawei.com> --- drivers/md/md.h | 10 ++++++++++ drivers/md/raid1.c | 26 +++++++------------------- drivers/md/raid10.c | 45 ++++++++++++++------------------------------- drivers/md/raid5.c | 35 +++++++++++++---------------------- 4 files changed, 44 insertions(+), 72 deletions(-) diff --git a/drivers/md/md.h b/drivers/md/md.h index c91da1abef42..ba61d7b83b40 100644 --- a/drivers/md/md.h +++ b/drivers/md/md.h @@ -222,6 +222,16 @@ static inline int is_badblock(struct md_rdev *rdev, sector_t s, int sectors, } return 0; } + +static inline int rdev_has_badblock(struct md_rdev *rdev, sector_t s, + int sectors) +{ + sector_t first_bad; + int bad_sectors; + + return is_badblock(rdev, s, sectors, &first_bad, &bad_sectors); +} + extern int rdev_set_badblocks(struct md_rdev *rdev, sector_t s, int sectors, int is_new); extern int rdev_clear_badblocks(struct md_rdev *rdev, sector_t s, int sectors, diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c index 8820ad4ae0a7..5ce5ba3642c4 100644 --- a/drivers/md/raid1.c +++ b/drivers/md/raid1.c @@ -494,9 +494,6 @@ static void raid1_end_write_request(struct bio *bio) * to user-side. So if something waits for IO, then it * will wait for the 'master' bio. */ - sector_t first_bad; - int bad_sectors; - r1_bio->bios[mirror] = NULL; to_put = bio; /* @@ -512,8 +509,8 @@ static void raid1_end_write_request(struct bio *bio) set_bit(R1BIO_Uptodate, &r1_bio->state); /* Maybe we can clear some bad blocks. */ - if (is_badblock(rdev, r1_bio->sector, r1_bio->sectors, - &first_bad, &bad_sectors) && !discard_error) { + if (rdev_has_badblock(rdev, r1_bio->sector, r1_bio->sectors) && + !discard_error) { r1_bio->bios[mirror] = IO_MADE_GOOD; set_bit(R1BIO_MadeGood, &r1_bio->state); } @@ -1923,8 +1920,6 @@ static void end_sync_write(struct bio *bio) struct r1bio *r1_bio = get_resync_r1bio(bio); struct mddev *mddev = r1_bio->mddev; struct r1conf *conf = mddev->private; - sector_t first_bad; - int bad_sectors; struct md_rdev *rdev = conf->mirrors[find_bio_disk(r1_bio, bio)].rdev; if (!uptodate) { @@ -1934,14 +1929,11 @@ static void end_sync_write(struct bio *bio) set_bit(MD_RECOVERY_NEEDED, & mddev->recovery); set_bit(R1BIO_WriteError, &r1_bio->state); - } else if (is_badblock(rdev, r1_bio->sector, r1_bio->sectors, - &first_bad, &bad_sectors) && - !is_badblock(conf->mirrors[r1_bio->read_disk].rdev, - r1_bio->sector, - r1_bio->sectors, - &first_bad, &bad_sectors) - ) + } else if (rdev_has_badblock(rdev, r1_bio->sector, r1_bio->sectors) && + !rdev_has_badblock(conf->mirrors[r1_bio->read_disk].rdev, + r1_bio->sector, r1_bio->sectors)) { set_bit(R1BIO_MadeGood, &r1_bio->state); + } put_sync_write_buf(r1_bio, uptodate); } @@ -2264,16 +2256,12 @@ static void fix_read_error(struct r1conf *conf, struct r1bio *r1_bio) s = PAGE_SIZE >> 9; do { - sector_t first_bad; - int bad_sectors; - rdev = conf->mirrors[d].rdev; if (rdev && (test_bit(In_sync, &rdev->flags) || (!test_bit(Faulty, &rdev->flags) && rdev->recovery_offset >= sect + s)) && - is_badblock(rdev, sect, s, - &first_bad, &bad_sectors) == 0) { + rdev_has_badblock(rdev, sect, s) == 0) { atomic_inc(&rdev->nr_pending); if (sync_page_io(rdev, sect, s<<9, conf->tmppage, REQ_OP_READ, false)) diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c index e303f6336306..0d3e63c17508 100644 --- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -512,11 +512,7 @@ static void raid10_end_write_request(struct bio *bio) * The 'master' represents the composite IO operation to * user-side. So if something waits for IO, then it will * wait for the 'master' bio. - */ - sector_t first_bad; - int bad_sectors; - - /* + * * Do not set R10BIO_Uptodate if the current device is * rebuilding or Faulty. This is because we cannot use * such device for properly reading the data back (we could @@ -529,10 +525,9 @@ static void raid10_end_write_request(struct bio *bio) set_bit(R10BIO_Uptodate, &r10_bio->state); /* Maybe we can clear some bad blocks. */ - if (is_badblock(rdev, - r10_bio->devs[slot].addr, - r10_bio->sectors, - &first_bad, &bad_sectors) && !discard_error) { + if (rdev_has_badblock(rdev, r10_bio->devs[slot].addr, + r10_bio->sectors) && + !discard_error) { bio_put(bio); if (repl) r10_bio->devs[slot].repl_bio = IO_MADE_GOOD; @@ -1320,10 +1315,7 @@ static void wait_blocked_dev(struct mddev *mddev, struct r10bio *r10_bio) } if (rdev && test_bit(WriteErrorSeen, &rdev->flags)) { - sector_t first_bad; sector_t dev_sector = r10_bio->devs[i].addr; - int bad_sectors; - int is_bad; /* * Discard request doesn't care the write result @@ -1332,9 +1324,8 @@ static void wait_blocked_dev(struct mddev *mddev, struct r10bio *r10_bio) if (!r10_bio->sectors) continue; - is_bad = is_badblock(rdev, dev_sector, r10_bio->sectors, - &first_bad, &bad_sectors); - if (is_bad < 0) { + if (rdev_has_badblock(rdev, dev_sector, + r10_bio->sectors) < 0) { /* * Mustn't write here until the bad block * is acknowledged @@ -2272,8 +2263,6 @@ static void end_sync_write(struct bio *bio) struct mddev *mddev = r10_bio->mddev; struct r10conf *conf = mddev->private; int d; - sector_t first_bad; - int bad_sectors; int slot; int repl; struct md_rdev *rdev = NULL; @@ -2294,11 +2283,10 @@ static void end_sync_write(struct bio *bio) &rdev->mddev->recovery); set_bit(R10BIO_WriteError, &r10_bio->state); } - } else if (is_badblock(rdev, - r10_bio->devs[slot].addr, - r10_bio->sectors, - &first_bad, &bad_sectors)) + } else if (rdev_has_badblock(rdev, r10_bio->devs[slot].addr, + r10_bio->sectors)) { set_bit(R10BIO_MadeGood, &r10_bio->state); + } rdev_dec_pending(rdev, mddev); @@ -2579,11 +2567,8 @@ static void recovery_request_write(struct mddev *mddev, struct r10bio *r10_bio) static int r10_sync_page_io(struct md_rdev *rdev, sector_t sector, int sectors, struct page *page, enum req_op op) { - sector_t first_bad; - int bad_sectors; - - if (is_badblock(rdev, sector, sectors, &first_bad, &bad_sectors) - && (op == REQ_OP_READ || test_bit(WriteErrorSeen, &rdev->flags))) + if (rdev_has_badblock(rdev, sector, sectors) && + (op == REQ_OP_READ || test_bit(WriteErrorSeen, &rdev->flags))) return -1; if (sync_page_io(rdev, sector, sectors << 9, page, op, false)) /* success */ @@ -2640,16 +2625,14 @@ static void fix_read_error(struct r10conf *conf, struct mddev *mddev, struct r10 s = PAGE_SIZE >> 9; do { - sector_t first_bad; - int bad_sectors; - d = r10_bio->devs[sl].devnum; rdev = conf->mirrors[d].rdev; if (rdev && test_bit(In_sync, &rdev->flags) && !test_bit(Faulty, &rdev->flags) && - is_badblock(rdev, r10_bio->devs[sl].addr + sect, s, - &first_bad, &bad_sectors) == 0) { + rdev_has_badblock(rdev, + r10_bio->devs[sl].addr + sect, + s) == 0) { atomic_inc(&rdev->nr_pending); success = sync_page_io(rdev, r10_bio->devs[sl].addr + diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index bb2dbb7f6a61..0651dfd08b8e 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -1209,10 +1209,8 @@ static void ops_run_io(struct stripe_head *sh, struct stripe_head_state *s) */ while (op_is_write(op) && rdev && test_bit(WriteErrorSeen, &rdev->flags)) { - sector_t first_bad; - int bad_sectors; - int bad = is_badblock(rdev, sh->sector, RAID5_STRIPE_SECTORS(conf), - &first_bad, &bad_sectors); + int bad = rdev_has_badblock(rdev, sh->sector, + RAID5_STRIPE_SECTORS(conf)); if (!bad) break; @@ -2852,8 +2850,6 @@ static void raid5_end_write_request(struct bio *bi) struct r5conf *conf = sh->raid_conf; int disks = sh->disks, i; struct md_rdev *rdev; - sector_t first_bad; - int bad_sectors; int replacement = 0; for (i = 0 ; i < disks; i++) { @@ -2885,9 +2881,8 @@ static void raid5_end_write_request(struct bio *bi) if (replacement) { if (bi->bi_status) md_error(conf->mddev, rdev); - else if (is_badblock(rdev, sh->sector, - RAID5_STRIPE_SECTORS(conf), - &first_bad, &bad_sectors)) + else if (rdev_has_badblock(rdev, sh->sector, + RAID5_STRIPE_SECTORS(conf))) set_bit(R5_MadeGoodRepl, &sh->dev[i].flags); } else { if (bi->bi_status) { @@ -2896,9 +2891,8 @@ static void raid5_end_write_request(struct bio *bi) if (!test_and_set_bit(WantReplacement, &rdev->flags)) set_bit(MD_RECOVERY_NEEDED, &rdev->mddev->recovery); - } else if (is_badblock(rdev, sh->sector, - RAID5_STRIPE_SECTORS(conf), - &first_bad, &bad_sectors)) { + } else if (rdev_has_badblock(rdev, sh->sector, + RAID5_STRIPE_SECTORS(conf))) { set_bit(R5_MadeGood, &sh->dev[i].flags); if (test_bit(R5_ReadError, &sh->dev[i].flags)) /* That was a successful write so make @@ -4634,8 +4628,6 @@ static void analyse_stripe(struct stripe_head *sh, struct stripe_head_state *s) /* Now to look around and see what can be done */ for (i=disks; i--; ) { struct md_rdev *rdev; - sector_t first_bad; - int bad_sectors; int is_bad = 0; dev = &sh->dev[i]; @@ -4679,8 +4671,8 @@ static void analyse_stripe(struct stripe_head *sh, struct stripe_head_state *s) rdev = conf->disks[i].replacement; if (rdev && !test_bit(Faulty, &rdev->flags) && rdev->recovery_offset >= sh->sector + RAID5_STRIPE_SECTORS(conf) && - !is_badblock(rdev, sh->sector, RAID5_STRIPE_SECTORS(conf), - &first_bad, &bad_sectors)) + !rdev_has_badblock(rdev, sh->sector, + RAID5_STRIPE_SECTORS(conf))) set_bit(R5_ReadRepl, &dev->flags); else { if (rdev && !test_bit(Faulty, &rdev->flags)) @@ -4693,8 +4685,8 @@ static void analyse_stripe(struct stripe_head *sh, struct stripe_head_state *s) if (rdev && test_bit(Faulty, &rdev->flags)) rdev = NULL; if (rdev) { - is_bad = is_badblock(rdev, sh->sector, RAID5_STRIPE_SECTORS(conf), - &first_bad, &bad_sectors); + is_bad = rdev_has_badblock(rdev, sh->sector, + RAID5_STRIPE_SECTORS(conf)); if (s->blocked_rdev == NULL && (test_bit(Blocked, &rdev->flags) || is_bad < 0)) { @@ -5421,8 +5413,8 @@ static int raid5_read_one_chunk(struct mddev *mddev, struct bio *raid_bio) struct r5conf *conf = mddev->private; struct bio *align_bio; struct md_rdev *rdev; - sector_t sector, end_sector, first_bad; - int bad_sectors, dd_idx; + sector_t sector, end_sector; + int dd_idx; bool did_inc; if (!in_chunk_boundary(mddev, raid_bio)) { @@ -5451,8 +5443,7 @@ static int raid5_read_one_chunk(struct mddev *mddev, struct bio *raid_bio) atomic_inc(&rdev->nr_pending); - if (is_badblock(rdev, sector, bio_sectors(raid_bio), &first_bad, - &bad_sectors)) { + if (rdev_has_badblock(rdev, sector, bio_sectors(raid_bio))) { rdev_dec_pending(rdev, mddev); return 0; } -- 2.39.2