diff options
| author | Christoph Hellwig <hch@lst.de> | 2023-01-11 07:23:25 +0100 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2023-02-15 19:38:54 +0100 |
| commit | abb49e87425be0d573bdafb9a5dbe2c64719796f (patch) | |
| tree | fe4dcb28967f83c8f1d69270f661abd40565835b /fs/btrfs/raid56.c | |
| parent | 79b02ec1d8ce1fafc8c39f888dbba6a3aa9a35cc (diff) | |
btrfs: raid56: simplify error handling and code flow in raid56_parity_write
Handle the error return on alloc_rbio failure directly instead of using
a goto and remove the queue_rbio goto label by moving the plugged
check into the if branch.
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/raid56.c')
| -rw-r--r-- | fs/btrfs/raid56.c | 37 |
1 files changed, 15 insertions, 22 deletions
diff --git a/fs/btrfs/raid56.c b/fs/btrfs/raid56.c index d095c07a152d..8073fa004870 100644 --- a/fs/btrfs/raid56.c +++ b/fs/btrfs/raid56.c @@ -1667,12 +1667,12 @@ void raid56_parity_write(struct bio *bio, struct btrfs_io_context *bioc) struct btrfs_raid_bio *rbio; struct btrfs_plug_cb *plug = NULL; struct blk_plug_cb *cb; - int ret = 0; rbio = alloc_rbio(fs_info, bioc); if (IS_ERR(rbio)) { - ret = PTR_ERR(rbio); - goto fail; + bio->bi_status = errno_to_blk_status(PTR_ERR(rbio)); + bio_endio(bio); + return; } rbio->operation = BTRFS_RBIO_WRITE; rbio_add_bio(rbio, bio); @@ -1681,31 +1681,24 @@ void raid56_parity_write(struct bio *bio, struct btrfs_io_context *bioc) * Don't plug on full rbios, just get them out the door * as quickly as we can */ - if (rbio_is_full(rbio)) - goto queue_rbio; - - cb = blk_check_plugged(raid_unplug, fs_info, sizeof(*plug)); - if (cb) { - plug = container_of(cb, struct btrfs_plug_cb, cb); - if (!plug->info) { - plug->info = fs_info; - INIT_LIST_HEAD(&plug->rbio_list); + if (!rbio_is_full(rbio)) { + cb = blk_check_plugged(raid_unplug, fs_info, sizeof(*plug)); + if (cb) { + plug = container_of(cb, struct btrfs_plug_cb, cb); + if (!plug->info) { + plug->info = fs_info; + INIT_LIST_HEAD(&plug->rbio_list); + } + list_add_tail(&rbio->plug_list, &plug->rbio_list); + return; } - list_add_tail(&rbio->plug_list, &plug->rbio_list); - return; } -queue_rbio: + /* * Either we don't have any existing plug, or we're doing a full stripe, - * can queue the rmw work now. + * queue the rmw work now. */ start_async_work(rbio, rmw_rbio_work); - - return; - -fail: - bio->bi_status = errno_to_blk_status(ret); - bio_endio(bio); } static int verify_one_sector(struct btrfs_raid_bio *rbio, |