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btrfs: Separate scrub_blocked_if_needed() to scrub_pause_on/off()
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>
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1 changed files with 10 additions and 1 deletions
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@ -332,11 +332,14 @@ static void __scrub_blocked_if_needed(struct btrfs_fs_info *fs_info)
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}
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}
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static void scrub_blocked_if_needed(struct btrfs_fs_info *fs_info)
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static void scrub_pause_on(struct btrfs_fs_info *fs_info)
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{
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atomic_inc(&fs_info->scrubs_paused);
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wake_up(&fs_info->scrub_pause_wait);
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}
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static void scrub_pause_off(struct btrfs_fs_info *fs_info)
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{
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mutex_lock(&fs_info->scrub_lock);
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__scrub_blocked_if_needed(fs_info);
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atomic_dec(&fs_info->scrubs_paused);
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@ -345,6 +348,12 @@ static void scrub_blocked_if_needed(struct btrfs_fs_info *fs_info)
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wake_up(&fs_info->scrub_pause_wait);
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}
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static void scrub_blocked_if_needed(struct btrfs_fs_info *fs_info)
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{
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scrub_pause_on(fs_info);
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scrub_pause_off(fs_info);
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}
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/*
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* used for workers that require transaction commits (i.e., for the
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* NOCOW case)
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