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| author | David Sterba <dsterba@suse.com> | 2019-10-01 19:57:39 +0200 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2019-11-18 12:46:52 +0100 |
| commit | e1f60a6580c04d0d2492bb6034e968b8c29c78cf (patch) | |
| tree | 56ef88afaeba63621dafb6b83d8cef6760fd9f35 /fs/btrfs/async-thread.h | |
| parent | 4143cb8b6f00910e73a7503fd922211b9f08cf48 (diff) | |
| download | blackbird-op-linux-e1f60a6580c04d0d2492bb6034e968b8c29c78cf.tar.gz blackbird-op-linux-e1f60a6580c04d0d2492bb6034e968b8c29c78cf.zip | |
btrfs: add __pure attribute to functions
The attribute is more relaxed than const and the functions could
dereference pointers, as long as the observable state is not changed. We
do have such functions, based on -Wsuggest-attribute=pure .
The visible effects of this patch are negligible, there are differences
in the assembly but hard to summarize.
Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/async-thread.h')
| -rw-r--r-- | fs/btrfs/async-thread.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/btrfs/async-thread.h b/fs/btrfs/async-thread.h index c5bf2b117c05..a4434301d84d 100644 --- a/fs/btrfs/async-thread.h +++ b/fs/btrfs/async-thread.h @@ -41,8 +41,8 @@ void btrfs_queue_work(struct btrfs_workqueue *wq, void btrfs_destroy_workqueue(struct btrfs_workqueue *wq); void btrfs_workqueue_set_max(struct btrfs_workqueue *wq, int max); void btrfs_set_work_high_priority(struct btrfs_work *work); -struct btrfs_fs_info *btrfs_work_owner(const struct btrfs_work *work); -struct btrfs_fs_info *btrfs_workqueue_owner(const struct __btrfs_workqueue *wq); +struct btrfs_fs_info * __pure btrfs_work_owner(const struct btrfs_work *work); +struct btrfs_fs_info * __pure btrfs_workqueue_owner(const struct __btrfs_workqueue *wq); bool btrfs_workqueue_normal_congested(const struct btrfs_workqueue *wq); #endif |
