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| author | Nikolay Borisov <nborisov@suse.com> | 2020-07-03 11:14:27 +0300 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2020-07-27 12:55:40 +0200 |
| commit | c31efbdf23a09468c9352f05443d5624dbbfd3c7 (patch) | |
| tree | bc968559afc3b8187c9ae41f4bc18a554522bf10 | |
| parent | 3526302f26162ae738926d44eb39e2e0780b11bc (diff) | |
| download | linux-stable-c31efbdf23a09468c9352f05443d5624dbbfd3c7.tar.gz linux-stable-c31efbdf23a09468c9352f05443d5624dbbfd3c7.tar.bz2 linux-stable-c31efbdf23a09468c9352f05443d5624dbbfd3c7.zip | |
btrfs: record btrfs_device directly in btrfs_io_bio
Instead of recording stripe_index and using that to access correct
btrfs_device from btrfs_bio::stripes record the btrfs_device in
btrfs_io_bio. This will enable endio handlers to increment device
error counters on checksum errors.
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
| -rw-r--r-- | fs/btrfs/raid56.c | 1 | ||||
| -rw-r--r-- | fs/btrfs/volumes.c | 14 | ||||
| -rw-r--r-- | fs/btrfs/volumes.h | 2 |
3 files changed, 6 insertions, 11 deletions
diff --git a/fs/btrfs/raid56.c b/fs/btrfs/raid56.c index c870ef70f817..570f6bf51c6e 100644 --- a/fs/btrfs/raid56.c +++ b/fs/btrfs/raid56.c @@ -1117,6 +1117,7 @@ static int rbio_add_io_page(struct btrfs_raid_bio *rbio, /* put a new bio on the list */ bio = btrfs_io_bio_alloc(bio_max_len >> PAGE_SHIFT ?: 1); + btrfs_io_bio(bio)->device = stripe->dev; bio->bi_iter.bi_size = 0; bio_set_dev(bio, stripe->dev->bdev); bio->bi_iter.bi_sector = disk_start >> 9; diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c index 62ae89b078f4..fb3502166e29 100644 --- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -6261,12 +6261,8 @@ static void btrfs_end_bio(struct bio *bio) atomic_inc(&bbio->error); if (bio->bi_status == BLK_STS_IOERR || bio->bi_status == BLK_STS_TARGET) { - unsigned int stripe_index = - btrfs_io_bio(bio)->stripe_index; - struct btrfs_device *dev; + struct btrfs_device *dev = btrfs_io_bio(bio)->device; - BUG_ON(stripe_index >= bbio->num_stripes); - dev = bbio->stripes[stripe_index].dev; if (dev->bdev) { if (bio_op(bio) == REQ_OP_WRITE) btrfs_dev_stat_inc_and_print(dev, @@ -6313,13 +6309,12 @@ static void btrfs_end_bio(struct bio *bio) } static void submit_stripe_bio(struct btrfs_bio *bbio, struct bio *bio, - u64 physical, int dev_nr) + u64 physical, struct btrfs_device *dev) { - struct btrfs_device *dev = bbio->stripes[dev_nr].dev; struct btrfs_fs_info *fs_info = bbio->fs_info; bio->bi_private = bbio; - btrfs_io_bio(bio)->stripe_index = dev_nr; + btrfs_io_bio(bio)->device = dev; bio->bi_end_io = btrfs_end_bio; bio->bi_iter.bi_sector = physical >> 9; btrfs_debug_in_rcu(fs_info, @@ -6420,8 +6415,7 @@ blk_status_t btrfs_map_bio(struct btrfs_fs_info *fs_info, struct bio *bio, else bio = first_bio; - submit_stripe_bio(bbio, bio, bbio->stripes[dev_nr].physical, - dev_nr); + submit_stripe_bio(bbio, bio, bbio->stripes[dev_nr].physical, dev); } btrfs_bio_counter_dec(fs_info); return BLK_STS_OK; diff --git a/fs/btrfs/volumes.h b/fs/btrfs/volumes.h index 75af2334b2e3..5eea93916fbf 100644 --- a/fs/btrfs/volumes.h +++ b/fs/btrfs/volumes.h @@ -288,7 +288,7 @@ struct btrfs_fs_devices { */ struct btrfs_io_bio { unsigned int mirror_num; - unsigned int stripe_index; + struct btrfs_device *device; u64 logical; u8 *csum; u8 csum_inline[BTRFS_BIO_INLINE_CSUM_SIZE]; |