raid10.c (9134d02bc0af4a8747d448d1f811ec5f8eb96df6) raid10.c (1f98a13f623e0ef666690a18c1250335fc6d7ef1)
1/*
2 * raid10.c : Multiple Devices driver for Linux
3 *
4 * Copyright (C) 2000-2004 Neil Brown
5 *
6 * RAID-10 support for md.
7 *
8 * Base on code in raid1.c. See raid1.c for futher copyright information.

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791 conf_t *conf = mddev->private;
792 mirror_info_t *mirror;
793 r10bio_t *r10_bio;
794 struct bio *read_bio;
795 int cpu;
796 int i;
797 int chunk_sects = conf->chunk_mask + 1;
798 const int rw = bio_data_dir(bio);
1/*
2 * raid10.c : Multiple Devices driver for Linux
3 *
4 * Copyright (C) 2000-2004 Neil Brown
5 *
6 * RAID-10 support for md.
7 *
8 * Base on code in raid1.c. See raid1.c for futher copyright information.

--- 782 unchanged lines hidden (view full) ---

791 conf_t *conf = mddev->private;
792 mirror_info_t *mirror;
793 r10bio_t *r10_bio;
794 struct bio *read_bio;
795 int cpu;
796 int i;
797 int chunk_sects = conf->chunk_mask + 1;
798 const int rw = bio_data_dir(bio);
799 const int do_sync = bio_sync(bio);
799 const bool do_sync = bio_rw_flagged(bio, BIO_RW_SYNCIO);
800 struct bio_list bl;
801 unsigned long flags;
802 mdk_rdev_t *blocked_rdev;
803
800 struct bio_list bl;
801 unsigned long flags;
802 mdk_rdev_t *blocked_rdev;
803
804 if (unlikely(bio_barrier(bio))) {
804 if (unlikely(bio_rw_flagged(bio, BIO_RW_BARRIER))) {
805 bio_endio(bio, -EOPNOTSUPP);
806 return 0;
807 }
808
809 /* If this request crosses a chunk boundary, we need to
810 * split it. This will only happen for 1 PAGE (or less) requests.
811 */
812 if (unlikely( (bio->bi_sector & conf->chunk_mask) + (bio->bi_size >> 9)

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1605 if (mirror == -1) {
1606 printk(KERN_ALERT "raid10: %s: unrecoverable I/O"
1607 " read error for block %llu\n",
1608 bdevname(bio->bi_bdev,b),
1609 (unsigned long long)r10_bio->sector);
1610 raid_end_bio_io(r10_bio);
1611 bio_put(bio);
1612 } else {
805 bio_endio(bio, -EOPNOTSUPP);
806 return 0;
807 }
808
809 /* If this request crosses a chunk boundary, we need to
810 * split it. This will only happen for 1 PAGE (or less) requests.
811 */
812 if (unlikely( (bio->bi_sector & conf->chunk_mask) + (bio->bi_size >> 9)

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1605 if (mirror == -1) {
1606 printk(KERN_ALERT "raid10: %s: unrecoverable I/O"
1607 " read error for block %llu\n",
1608 bdevname(bio->bi_bdev,b),
1609 (unsigned long long)r10_bio->sector);
1610 raid_end_bio_io(r10_bio);
1611 bio_put(bio);
1612 } else {
1613 const int do_sync = bio_sync(r10_bio->master_bio);
1613 const bool do_sync = bio_rw_flagged(r10_bio->master_bio, BIO_RW_SYNCIO);
1614 bio_put(bio);
1615 rdev = conf->mirrors[mirror].rdev;
1616 if (printk_ratelimit())
1617 printk(KERN_ERR "raid10: %s: redirecting sector %llu to"
1618 " another mirror\n",
1619 bdevname(rdev->bdev,b),
1620 (unsigned long long)r10_bio->sector);
1621 bio = bio_clone(r10_bio->master_bio, GFP_NOIO);

--- 696 unchanged lines hidden --- 		1614 bio_put(bio);
1615 rdev = conf->mirrors[mirror].rdev;
1616 if (printk_ratelimit())
1617 printk(KERN_ERR "raid10: %s: redirecting sector %llu to"
1618 " another mirror\n",
1619 bdevname(rdev->bdev,b),
1620 (unsigned long long)r10_bio->sector);
1621 bio = bio_clone(r10_bio->master_bio, GFP_NOIO);

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