diff options
Diffstat (limited to 'fs/btrfs/raid56.c')
| -rw-r--r-- | fs/btrfs/raid56.c | 44 |
1 files changed, 10 insertions, 34 deletions
diff --git a/fs/btrfs/raid56.c b/fs/btrfs/raid56.c index fcfc20de2df3..9abd950e7f78 100644 --- a/fs/btrfs/raid56.c +++ b/fs/btrfs/raid56.c @@ -1,21 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0 /* * Copyright (C) 2012 Fusion-io All rights reserved. * Copyright (C) 2012 Intel Corp. All rights reserved. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public - * License v2 as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public - * License along with this program; if not, write to the - * Free Software Foundation, Inc., 59 Temple Place - Suite 330, - * Boston, MA 021110-1307, USA. */ + #include <linux/sched.h> #include <linux/wait.h> #include <linux/bio.h> @@ -1987,7 +1975,13 @@ cleanup: kfree(pointers); cleanup_io: - if (rbio->operation == BTRFS_RBIO_READ_REBUILD) { + /* + * Similar to READ_REBUILD, REBUILD_MISSING at this point also has a + * valid rbio which is consistent with ondisk content, thus such a + * valid rbio can be cached to avoid further disk reads. + */ + if (rbio->operation == BTRFS_RBIO_READ_REBUILD || + rbio->operation == BTRFS_RBIO_REBUILD_MISSING) { /* * - In case of two failures, where rbio->failb != -1: * @@ -2009,8 +2003,6 @@ cleanup_io: clear_bit(RBIO_CACHE_READY_BIT, &rbio->flags); rbio_orig_end_io(rbio, err); - } else if (rbio->operation == BTRFS_RBIO_REBUILD_MISSING) { - rbio_orig_end_io(rbio, err); } else if (err == BLK_STS_OK) { rbio->faila = -1; rbio->failb = -1; @@ -2768,24 +2760,8 @@ raid56_alloc_missing_rbio(struct btrfs_fs_info *fs_info, struct bio *bio, return rbio; } -static void missing_raid56_work(struct btrfs_work *work) -{ - struct btrfs_raid_bio *rbio; - - rbio = container_of(work, struct btrfs_raid_bio, work); - __raid56_parity_recover(rbio); -} - -static void async_missing_raid56(struct btrfs_raid_bio *rbio) -{ - btrfs_init_work(&rbio->work, btrfs_rmw_helper, - missing_raid56_work, NULL, NULL); - - btrfs_queue_work(rbio->fs_info->rmw_workers, &rbio->work); -} - void raid56_submit_missing_rbio(struct btrfs_raid_bio *rbio) { if (!lock_stripe_add(rbio)) - async_missing_raid56(rbio); + async_read_rebuild(rbio); } |