diff options
| author | David S. Miller <davem@davemloft.net> | 2015-03-03 21:16:48 -0500 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-03-03 21:16:48 -0500 |
| commit | 71a83a6db6138b9d41d8a0b6b91cb59f6dc4742c (patch) | |
| tree | f74b6e4e48257ec6ce40b95645ecb8533b9cc1f8 /fs/btrfs/dev-replace.c | |
| parent | Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsh... (diff) | |
| parent | Merge branch 'for-4.0' of git://linux-nfs.org/~bfields/linux (diff) | |
| download | linux-71a83a6db6138b9d41d8a0b6b91cb59f6dc4742c.tar.gz linux-71a83a6db6138b9d41d8a0b6b91cb59f6dc4742c.zip | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts:
drivers/net/ethernet/rocker/rocker.c
The rocker commit was two overlapping changes, one to rename
the ->vport member to ->pport, and another making the bitmask
expression use '1ULL' instead of plain '1'.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'fs/btrfs/dev-replace.c')
| -rw-r--r-- | fs/btrfs/dev-replace.c | 25 |
1 files changed, 8 insertions, 17 deletions
diff --git a/fs/btrfs/dev-replace.c b/fs/btrfs/dev-replace.c index ca6a3a3b6b6c..5ec03d999c37 100644 --- a/fs/btrfs/dev-replace.c +++ b/fs/btrfs/dev-replace.c @@ -440,18 +440,9 @@ leave: */ static void btrfs_rm_dev_replace_blocked(struct btrfs_fs_info *fs_info) { - s64 writers; - DEFINE_WAIT(wait); - set_bit(BTRFS_FS_STATE_DEV_REPLACING, &fs_info->fs_state); - do { - prepare_to_wait(&fs_info->replace_wait, &wait, - TASK_UNINTERRUPTIBLE); - writers = percpu_counter_sum(&fs_info->bio_counter); - if (writers) - schedule(); - finish_wait(&fs_info->replace_wait, &wait); - } while (writers); + wait_event(fs_info->replace_wait, !percpu_counter_sum( + &fs_info->bio_counter)); } /* @@ -932,15 +923,15 @@ void btrfs_bio_counter_sub(struct btrfs_fs_info *fs_info, s64 amount) void btrfs_bio_counter_inc_blocked(struct btrfs_fs_info *fs_info) { - DEFINE_WAIT(wait); -again: - percpu_counter_inc(&fs_info->bio_counter); - if (test_bit(BTRFS_FS_STATE_DEV_REPLACING, &fs_info->fs_state)) { + while (1) { + percpu_counter_inc(&fs_info->bio_counter); + if (likely(!test_bit(BTRFS_FS_STATE_DEV_REPLACING, + &fs_info->fs_state))) + break; + btrfs_bio_counter_dec(fs_info); wait_event(fs_info->replace_wait, !test_bit(BTRFS_FS_STATE_DEV_REPLACING, &fs_info->fs_state)); - goto again; } - } |
