Updated from Linux LTS 3.10.18 to 3.10.19
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@@ -1059,7 +1059,7 @@ static void request_write(struct cached_dev *dc, struct search *s)
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if (bio->bi_rw & REQ_FLUSH) {
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/* Also need to send a flush to the backing device */
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struct bio *flush = bio_alloc_bioset(0, GFP_NOIO,
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struct bio *flush = bio_alloc_bioset(GFP_NOIO, 0,
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dc->disk.bio_split);
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flush->bi_rw = WRITE_FLUSH;
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@@ -8072,6 +8072,7 @@ static int md_set_badblocks(struct badblocks *bb, sector_t s, int sectors,
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u64 *p;
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int lo, hi;
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int rv = 1;
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unsigned long flags;
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if (bb->shift < 0)
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/* badblocks are disabled */
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@@ -8086,7 +8087,7 @@ static int md_set_badblocks(struct badblocks *bb, sector_t s, int sectors,
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sectors = next - s;
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}
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write_seqlock_irq(&bb->lock);
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write_seqlock_irqsave(&bb->lock, flags);
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p = bb->page;
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lo = 0;
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@@ -8202,7 +8203,7 @@ static int md_set_badblocks(struct badblocks *bb, sector_t s, int sectors,
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bb->changed = 1;
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if (!acknowledged)
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bb->unacked_exist = 1;
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write_sequnlock_irq(&bb->lock);
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write_sequnlock_irqrestore(&bb->lock, flags);
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return rv;
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}
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@@ -1479,6 +1479,7 @@ static int raid1_spare_active(struct mddev *mddev)
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}
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}
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if (rdev
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&& rdev->recovery_offset == MaxSector
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&& !test_bit(Faulty, &rdev->flags)
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&& !test_and_set_bit(In_sync, &rdev->flags)) {
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count++;
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@@ -1762,6 +1762,7 @@ static int raid10_spare_active(struct mddev *mddev)
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}
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sysfs_notify_dirent_safe(tmp->replacement->sysfs_state);
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} else if (tmp->rdev
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&& tmp->rdev->recovery_offset == MaxSector
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&& !test_bit(Faulty, &tmp->rdev->flags)
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&& !test_and_set_bit(In_sync, &tmp->rdev->flags)) {
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count++;
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@@ -668,6 +668,12 @@ static void ops_run_io(struct stripe_head *sh, struct stripe_head_state *s)
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bi->bi_io_vec[0].bv_len = STRIPE_SIZE;
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bi->bi_io_vec[0].bv_offset = 0;
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bi->bi_size = STRIPE_SIZE;
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/*
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* If this is discard request, set bi_vcnt 0. We don't
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* want to confuse SCSI because SCSI will replace payload
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*/
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if (rw & REQ_DISCARD)
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bi->bi_vcnt = 0;
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if (rrdev)
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set_bit(R5_DOUBLE_LOCKED, &sh->dev[i].flags);
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@@ -706,6 +712,12 @@ static void ops_run_io(struct stripe_head *sh, struct stripe_head_state *s)
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rbi->bi_io_vec[0].bv_len = STRIPE_SIZE;
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rbi->bi_io_vec[0].bv_offset = 0;
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rbi->bi_size = STRIPE_SIZE;
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/*
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* If this is discard request, set bi_vcnt 0. We don't
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* want to confuse SCSI because SCSI will replace payload
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*/
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if (rw & REQ_DISCARD)
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rbi->bi_vcnt = 0;
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if (conf->mddev->gendisk)
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trace_block_bio_remap(bdev_get_queue(rbi->bi_bdev),
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rbi, disk_devt(conf->mddev->gendisk),
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@@ -2800,6 +2812,14 @@ static void handle_stripe_clean_event(struct r5conf *conf,
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}
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/* now that discard is done we can proceed with any sync */
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clear_bit(STRIPE_DISCARD, &sh->state);
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/*
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* SCSI discard will change some bio fields and the stripe has
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* no updated data, so remove it from hash list and the stripe
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* will be reinitialized
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*/
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spin_lock_irq(&conf->device_lock);
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remove_hash(sh);
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spin_unlock_irq(&conf->device_lock);
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if (test_bit(STRIPE_SYNC_REQUESTED, &sh->state))
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set_bit(STRIPE_HANDLE, &sh->state);
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