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| author | Jan Schmidt <list.btrfs@jan-o-sch.net> | 2011-08-04 17:15:33 +0200 |
|---|---|---|
| committer | Jan Schmidt <list.btrfs@jan-o-sch.net> | 2011-09-29 13:38:42 +0200 |
| commit | a1d3c4786a4b9c71c0767aa656a759968f7554b6 (patch) | |
| tree | 1dc5596ca57f261d2816111e51a2f33928bbe4a6 /fs/btrfs/scrub.c | |
| parent | d7728c960dccf775b92f2c4139f1216275a45c44 (diff) | |
| download | lwn-a1d3c4786a4b9c71c0767aa656a759968f7554b6.tar.gz lwn-a1d3c4786a4b9c71c0767aa656a759968f7554b6.zip | |
btrfs: btrfs_multi_bio replaced with btrfs_bio
btrfs_bio is a bio abstraction able to split and not complete after the last
bio has returned (like the old btrfs_multi_bio). Additionally, btrfs_bio
tracks the mirror_num used to read data which can be used for error
correction purposes.
Signed-off-by: Jan Schmidt <list.btrfs@jan-o-sch.net>
Diffstat (limited to 'fs/btrfs/scrub.c')
| -rw-r--r-- | fs/btrfs/scrub.c | 20 |
1 files changed, 10 insertions, 10 deletions
diff --git a/fs/btrfs/scrub.c b/fs/btrfs/scrub.c index db09f01c0e4f..97142a218f0a 100644 --- a/fs/btrfs/scrub.c +++ b/fs/btrfs/scrub.c @@ -572,7 +572,7 @@ static void scrub_fixup(struct scrub_bio *sbio, int ix) struct scrub_dev *sdev = sbio->sdev; struct btrfs_fs_info *fs_info = sdev->dev->dev_root->fs_info; struct btrfs_mapping_tree *map_tree = &fs_info->mapping_tree; - struct btrfs_multi_bio *multi = NULL; + struct btrfs_bio *bbio = NULL; struct scrub_fixup_nodatasum *fixup; u64 logical = sbio->logical + ix * PAGE_SIZE; u64 length; @@ -610,8 +610,8 @@ static void scrub_fixup(struct scrub_bio *sbio, int ix) length = PAGE_SIZE; ret = btrfs_map_block(map_tree, REQ_WRITE, logical, &length, - &multi, 0); - if (ret || !multi || length < PAGE_SIZE) { + &bbio, 0); + if (ret || !bbio || length < PAGE_SIZE) { printk(KERN_ERR "scrub_fixup: btrfs_map_block failed us for %llu\n", (unsigned long long)logical); @@ -619,19 +619,19 @@ static void scrub_fixup(struct scrub_bio *sbio, int ix) return; } - if (multi->num_stripes == 1) + if (bbio->num_stripes == 1) /* there aren't any replicas */ goto uncorrectable; /* * first find a good copy */ - for (i = 0; i < multi->num_stripes; ++i) { + for (i = 0; i < bbio->num_stripes; ++i) { if (i + 1 == sbio->spag[ix].mirror_num) continue; - if (scrub_fixup_io(READ, multi->stripes[i].dev->bdev, - multi->stripes[i].physical >> 9, + if (scrub_fixup_io(READ, bbio->stripes[i].dev->bdev, + bbio->stripes[i].physical >> 9, sbio->bio->bi_io_vec[ix].bv_page)) { /* I/O-error, this is not a good copy */ continue; @@ -640,7 +640,7 @@ static void scrub_fixup(struct scrub_bio *sbio, int ix) if (scrub_fixup_check(sbio, ix) == 0) break; } - if (i == multi->num_stripes) + if (i == bbio->num_stripes) goto uncorrectable; if (!sdev->readonly) { @@ -655,7 +655,7 @@ static void scrub_fixup(struct scrub_bio *sbio, int ix) } } - kfree(multi); + kfree(bbio); spin_lock(&sdev->stat_lock); ++sdev->stat.corrected_errors; spin_unlock(&sdev->stat_lock); @@ -665,7 +665,7 @@ static void scrub_fixup(struct scrub_bio *sbio, int ix) return; uncorrectable: - kfree(multi); + kfree(bbio); spin_lock(&sdev->stat_lock); ++sdev->stat.uncorrectable_errors; spin_unlock(&sdev->stat_lock); |