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| author |   Linus Torvalds <torvalds@linux-foundation.org> | 2014-08-14 09:10:21 -0600 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-08-14 09:10:21 -0600 |
| commit | d429a3639ca967ce2f35e3e8d4e70caec7149ded (patch) | |
| tree | cad1e5602551b6a744f63ef062de2c2e21cfe39a /include/scsi | |
| parent | Merge branch 'for-3.17/core' of git://git.kernel.dk/linux-block (diff) | |
| parent | Merge branch 'for-jens' of http://evilpiepirate.org/git/linux-bcache into for-3.17/drivers (diff) | |
| download | linux-dev-d429a3639ca967ce2f35e3e8d4e70caec7149ded.tar.xz linux-dev-d429a3639ca967ce2f35e3e8d4e70caec7149ded.zip | |
Merge branch 'for-3.17/drivers' of git://git.kernel.dk/linux-block
Pull block driver changes from Jens Axboe:
"Nothing out of the ordinary here, this pull request contains:
- A big round of fixes for bcache from Kent Overstreet, Slava Pestov,
and Surbhi Palande. No new features, just a lot of fixes.
- The usual round of drbd updates from Andreas Gruenbacher, Lars
Ellenberg, and Philipp Reisner.
- virtio_blk was converted to blk-mq back in 3.13, but now Ming Lei
has taken it one step further and added support for actually using
more than one queue.
- Addition of an explicit SG_FLAG_Q_AT_HEAD for block/bsg, to
compliment the the default behavior of adding to the tail of the
queue. From Douglas Gilbert"
* 'for-3.17/drivers' of git://git.kernel.dk/linux-block: (86 commits)
bcache: Drop unneeded blk_sync_queue() calls
bcache: add mutex lock for bch_is_open
bcache: Correct printing of btree_gc_max_duration_ms
bcache: try to set b->parent properly
bcache: fix memory corruption in init error path
bcache: fix crash with incomplete cache set
bcache: Fix more early shutdown bugs
bcache: fix use-after-free in btree_gc_coalesce()
bcache: Fix an infinite loop in journal replay
bcache: fix crash in bcache_btree_node_alloc_fail tracepoint
bcache: bcache_write tracepoint was crashing
bcache: fix typo in bch_bkey_equal_header
bcache: Allocate bounce buffers with GFP_NOWAIT
bcache: Make sure to pass GFP_WAIT to mempool_alloc()
bcache: fix uninterruptible sleep in writeback thread
bcache: wait for buckets when allocating new btree root
bcache: fix crash on shutdown in passthrough mode
bcache: fix lockdep warnings on shutdown
bcache allocator: send discards with correct size
bcache: Fix to remove the rcu_sched stalls.
...
Diffstat (limited to 'include/scsi')
| -rw-r--r-- | include/scsi/sg.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/include/scsi/sg.h b/include/scsi/sg.h index 9859355a7cf9..750e5db7c6bf 100644 --- a/include/scsi/sg.h +++ b/include/scsi/sg.h @@ -86,7 +86,9 @@ typedef struct sg_io_hdr #define SG_FLAG_MMAP_IO 4 /* request memory mapped IO */ #define SG_FLAG_NO_DXFER 0x10000 /* no transfer of kernel buffers to/from */ /* user space (debug indirect IO) */ -#define SG_FLAG_Q_AT_TAIL 0x10 /* default is Q_AT_HEAD */ +/* defaults:: for sg driver: Q_AT_HEAD; for block layer: Q_AT_TAIL */ +#define SG_FLAG_Q_AT_TAIL 0x10 +#define SG_FLAG_Q_AT_HEAD 0x20 /* following 'info' values are "or"-ed together */ #define SG_INFO_OK_MASK 0x1 |