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Merge branch 'for-3.17/drivers' of git://git.kernel.dk/linux-block

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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.
  ...
This commit is contained in:
Linus Torvalds
2014-08-14 09:10:21 -06:00
parent 4a319a490c 99d540018c
commit d429a3639c
39 changed files with 2941 additions and 1320 deletions
Download Patch File Download Diff File Expand all files Collapse all files

11
include/uapi/linux/bsg.h
View File

@@ -10,12 +10,13 @@
#define BSG_SUB_PROTOCOL_SCSI_TRANSPORT 2
/*
* For flags member below
* sg.h sg_io_hdr also has bits defined for it's flags member. However
* none of these bits are implemented/used by bsg. The bits below are
* allocated to not conflict with sg.h ones anyway.
* For flag constants below:
* sg.h sg_io_hdr also has bits defined for it's flags member. These
* two flag values (0x10 and 0x20) have the same meaning in sg.h . For
* bsg the BSG_FLAG_Q_AT_HEAD flag is ignored since it is the deafult.
*/
#define BSG_FLAG_Q_AT_TAIL 0x10 /* default, == 0 at this bit, is Q_AT_HEAD */
#define BSG_FLAG_Q_AT_TAIL 0x10 /* default is Q_AT_HEAD */
#define BSG_FLAG_Q_AT_HEAD 0x20
struct sg_io_v4 {
__s32 guard; /* [i] 'Q' to differentiate from v3 */

5
include/uapi/linux/virtio_blk.h
View File

@@ -40,6 +40,7 @@
#define VIRTIO_BLK_F_WCE 9 /* Writeback mode enabled after reset */
#define VIRTIO_BLK_F_TOPOLOGY 10 /* Topology information is available */
#define VIRTIO_BLK_F_CONFIG_WCE 11 /* Writeback mode available in config */
#define VIRTIO_BLK_F_MQ 12 /* support more than one vq */
#ifndef __KERNEL__
/* Old (deprecated) name for VIRTIO_BLK_F_WCE. */
@@ -77,6 +78,10 @@ struct virtio_blk_config {
/* writeback mode (if VIRTIO_BLK_F_CONFIG_WCE) */
__u8 wce;
__u8 unused;
/* number of vqs, only available when VIRTIO_BLK_F_MQ is set */
__u16 num_queues;
} __attribute__((packed));
/*