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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2015-11-11 01:23:49 (GMT) |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-11-11 01:23:49 (GMT) |
| commit | 3419b45039c6b799c974a8019361c045e7ca232c (patch) | |
| tree | 36a63602036cc50f34fadcbd5d5d8fca94e44297 /drivers/s390/block/dcssblk.c | |
| parent | 01504f5e9e071f1dde1062e3be15f54d4555308f (diff) | |
| parent | c1c534609fe8a859f9c8108a5591e6e8a97e34d1 (diff) | |
| download | linux-3419b45039c6b799c974a8019361c045e7ca232c.tar.xz | |
Merge branch 'for-4.4/io-poll' of git://git.kernel.dk/linux-block
Pull block IO poll support from Jens Axboe:
"Various groups have been doing experimentation around IO polling for
(really) fast devices. The code has been reviewed and has been
sitting on the side for a few releases, but this is now good enough
for coordinated benchmarking and further experimentation.
Currently O_DIRECT sync read/write are supported. A framework is in
the works that allows scalable stats tracking so we can auto-tune
this. And we'll add libaio support as well soon. Fow now, it's an
opt-in feature for test purposes"
* 'for-4.4/io-poll' of git://git.kernel.dk/linux-block:
direct-io: be sure to assign dio->bio_bdev for both paths
directio: add block polling support
NVMe: add blk polling support
block: add block polling support
blk-mq: return tag/queue combo in the make_request_fn handlers
block: change ->make_request_fn() and users to return a queue cookie
Diffstat (limited to 'drivers/s390/block/dcssblk.c')
| -rw-r--r-- | drivers/s390/block/dcssblk.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/s390/block/dcssblk.c b/drivers/s390/block/dcssblk.c index 5ed44fe..94a8f4a 100644 --- a/drivers/s390/block/dcssblk.c +++ b/drivers/s390/block/dcssblk.c @@ -27,7 +27,8 @@ static int dcssblk_open(struct block_device *bdev, fmode_t mode); static void dcssblk_release(struct gendisk *disk, fmode_t mode); -static void dcssblk_make_request(struct request_queue *q, struct bio *bio); +static blk_qc_t dcssblk_make_request(struct request_queue *q, + struct bio *bio); static long dcssblk_direct_access(struct block_device *bdev, sector_t secnum, void __pmem **kaddr, unsigned long *pfn); @@ -815,7 +816,7 @@ dcssblk_release(struct gendisk *disk, fmode_t mode) up_write(&dcssblk_devices_sem); } -static void +static blk_qc_t dcssblk_make_request(struct request_queue *q, struct bio *bio) { struct dcssblk_dev_info *dev_info; @@ -874,9 +875,10 @@ dcssblk_make_request(struct request_queue *q, struct bio *bio) bytes_done += bvec.bv_len; } bio_endio(bio); - return; + return BLK_QC_T_NONE; fail: bio_io_error(bio); + return BLK_QC_T_NONE; } static long |