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authorZhao Lei <zhaolei@cn.fujitsu.com>2015-01-20 15:11:38 +0800
committerChris Mason <clm@fb.com>2015-01-21 18:06:48 -0800
commit7653947fe6d59db72fbc26c4fc9ef842febc79e3 (patch)
tree7766695ee6800bf7c98c69c82330e10275bd5ef4 /fs/btrfs/dev-replace.c
parent09dd7a01c3436344fb4c3974b275e016264e0a27 (diff)
downloadop-kernel-dev-7653947fe6d59db72fbc26c4fc9ef842febc79e3.zip
op-kernel-dev-7653947fe6d59db72fbc26c4fc9ef842febc79e3.tar.gz
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.c13
1 files changed, 2 insertions, 11 deletions
diff --git a/fs/btrfs/dev-replace.c b/fs/btrfs/dev-replace.c
index 92109b7..5ec03d9 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));
}
/*
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