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btrfs: Separate scrub_blocked_if_needed() to scrub_pause_on/off()

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It can reduce current duplicated code which is similar to
scrub_blocked_if_needed() but can not call it because little
different.
It also used by my next patch which is in same case.

Signed-off-by: Zhao Lei <zhaolei@cn.fujitsu.com>
Signed-off-by: Chris Mason <clm@fb.com>
This commit is contained in:
Zhaolei
2015-08-05 16:43:28 +08:00
committed by Chris Mason
parent 868f401ae3
commit 0e22be890e
1 changed files with 10 additions and 1 deletions
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11
fs/btrfs/scrub.c
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@@ -332,11 +332,14 @@ static void __scrub_blocked_if_needed(struct btrfs_fs_info *fs_info)
} }
} }
static void scrub_blocked_if_needed(struct btrfs_fs_info *fs_info) static void scrub_pause_on(struct btrfs_fs_info *fs_info)
{ {
atomic_inc(&fs_info->scrubs_paused); atomic_inc(&fs_info->scrubs_paused);
wake_up(&fs_info->scrub_pause_wait); wake_up(&fs_info->scrub_pause_wait);
}
static void scrub_pause_off(struct btrfs_fs_info *fs_info)
{
mutex_lock(&fs_info->scrub_lock); mutex_lock(&fs_info->scrub_lock);
__scrub_blocked_if_needed(fs_info); __scrub_blocked_if_needed(fs_info);
atomic_dec(&fs_info->scrubs_paused); atomic_dec(&fs_info->scrubs_paused);
@@ -345,6 +348,12 @@ static void scrub_blocked_if_needed(struct btrfs_fs_info *fs_info)
wake_up(&fs_info->scrub_pause_wait); wake_up(&fs_info->scrub_pause_wait);
} }
static void scrub_blocked_if_needed(struct btrfs_fs_info *fs_info)
{
scrub_pause_on(fs_info);
scrub_pause_off(fs_info);
}
/* /*
* used for workers that require transaction commits (i.e., for the * used for workers that require transaction commits (i.e., for the
* NOCOW case) * NOCOW case)