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| author | Zhao Lei <zhaolei@cn.fujitsu.com> | 2015-01-20 15:11:38 +0800 |
|---|---|---|
| committer | Chris Mason <clm@fb.com> | 2015-01-21 18:06:48 -0800 |
| commit | 7653947fe6d59db72fbc26c4fc9ef842febc79e3 (patch) | |
| tree | 7766695ee6800bf7c98c69c82330e10275bd5ef4 /fs/btrfs/dev-replace.c | |
| parent | 09dd7a01c3436344fb4c3974b275e016264e0a27 (diff) | |
| download | lwn-7653947fe6d59db72fbc26c4fc9ef842febc79e3.tar.gz lwn-7653947fe6d59db72fbc26c4fc9ef842febc79e3.zip | |
Btrfs: btrfs_rm_dev_replace_blocked(): Use wait_event()
Signed-off-by: Zhao Lei <zhaolei@cn.fujitsu.com>
Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Chris Mason <clm@fb.com>
Diffstat (limited to 'fs/btrfs/dev-replace.c')
| -rw-r--r-- | fs/btrfs/dev-replace.c | 13 |
1 files changed, 2 insertions, 11 deletions
diff --git a/fs/btrfs/dev-replace.c b/fs/btrfs/dev-replace.c index 92109b7c865c..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)); } /* |