diff options
| author | Christoph Hellwig <hch@lst.de> | 2023-03-27 02:49:51 +0200 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2023-04-17 18:01:22 +0200 |
| commit | 3480373ebdf7625ee29bee6508c9fc4ae70c00bf (patch) | |
| tree | dddeb5c65b5a3d8dd35e31347916ac7d4846ce7b /fs/btrfs/bio.h | |
| parent | btrfs, mm: remove the punt_to_cgroup field in struct writeback_control (diff) | |
| download | linux-3480373ebdf7625ee29bee6508c9fc4ae70c00bf.tar.xz linux-3480373ebdf7625ee29bee6508c9fc4ae70c00bf.zip | |
btrfs, block: move REQ_CGROUP_PUNT to btrfs
REQ_CGROUP_PUNT is a bit annoying as it is hard to follow and adds
a branch to the bio submission hot path. To fix this, export
blkcg_punt_bio_submit and let btrfs call it directly. Add a new
REQ_FS_PRIVATE flag for btrfs to indicate to it's own low-level
bio submission code that a punt to the cgroup submission helper
is required.
Reviewed-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/bio.h')
| -rw-r--r-- | fs/btrfs/bio.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/btrfs/bio.h b/fs/btrfs/bio.h index dbf125f6fa33..8edf3c35eead 100644 --- a/fs/btrfs/bio.h +++ b/fs/btrfs/bio.h @@ -88,6 +88,9 @@ static inline void btrfs_bio_end_io(struct btrfs_bio *bbio, blk_status_t status) /* Bio only refers to one ordered extent. */ #define REQ_BTRFS_ONE_ORDERED REQ_DRV +/* Submit using blkcg_punt_bio_submit. */ +#define REQ_BTRFS_CGROUP_PUNT REQ_FS_PRIVATE + void btrfs_submit_bio(struct btrfs_bio *bbio, int mirror_num); int btrfs_repair_io_failure(struct btrfs_fs_info *fs_info, u64 ino, u64 start, u64 length, u64 logical, struct page *page, |