diff options
| author | Johannes Thumshirn <johannes.thumshirn@wdc.com> | 2021-02-04 11:22:01 +0100 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2021-02-09 02:46:05 +0100 |
| commit | cacb2cea46382aacf0365dbe231bd1ac3349478e (patch) | |
| tree | 2df7b16cd23bbdc4b902c0f8457f7ba80e810e0a /fs/btrfs/extent_io.c | |
| parent | btrfs: zoned: split ordered extent when bio is sent (diff) | |
| download | linux-cacb2cea46382aacf0365dbe231bd1ac3349478e.tar.xz linux-cacb2cea46382aacf0365dbe231bd1ac3349478e.zip | |
btrfs: zoned: check if bio spans across an ordered extent
To ensure that an ordered extent maps to a contiguous region on disk, we
need to maintain a "one bio == one ordered extent" rule.
Ensure that constructing bio does not span more than an ordered extent.
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Naohiro Aota <naohiro.aota@wdc.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/extent_io.c')
| -rw-r--r-- | fs/btrfs/extent_io.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c index 6b26777efb92..f64e2be5749e 100644 --- a/fs/btrfs/extent_io.c +++ b/fs/btrfs/extent_io.c @@ -3124,10 +3124,15 @@ static bool btrfs_bio_add_page(struct bio *bio, struct page *page, if (btrfs_bio_fits_in_stripe(page, size, bio, bio_flags)) return false; - if (bio_op(bio) == REQ_OP_ZONE_APPEND) + if (bio_op(bio) == REQ_OP_ZONE_APPEND) { + struct page *first_page = bio_first_bvec_all(bio)->bv_page; + + if (!btrfs_bio_fits_in_ordered_extent(first_page, bio, size)) + return false; ret = bio_add_zone_append_page(bio, page, size, pg_offset); - else + } else { ret = bio_add_page(bio, page, size, pg_offset); + } return ret == size; } |