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authorLinus Torvalds <torvalds@linux-foundation.org>2014-08-14 09:07:02 -0600
committerLinus Torvalds <torvalds@linux-foundation.org>2014-08-14 09:07:02 -0600
commit4a319a490ca59a746b3d36768c0e29ee19832366 (patch)
tree41c34e68fdf2477aa9ae40d8c3d77cdec93f568b /include
parentf0094b28f3038936c1985be64dbe83f0e950b671 (diff)
parentd97a86c170b4e432f76db072a827fe30b4d6f659 (diff)
downloadlinux-4a319a490ca59a746b3d36768c0e29ee19832366.tar.bz2
Merge branch 'for-3.17/core' of git://git.kernel.dk/linux-block
Pull block core bits from Jens Axboe: "Small round this time, after the massive blk-mq dump for 3.16. This pull request contains: - Fixes for max_sectors overflow in ioctls from Akinoby Mita. - Partition off-by-one bug fix in aix partitions from Dan Carpenter. - Various small partition cleanups from Fabian Frederick. - Fix for the block integrity code sometimes returning the wrong vector count from Gu Zheng. - Cleanup an re-org of the blk-mq queue enter/exit percpu counters from Tejun. Dependent on the percpu pull for 3.17 (which was in the block tree too), that you have already pulled in. - A blkcg oops fix, also from Tejun" * 'for-3.17/core' of git://git.kernel.dk/linux-block: partitions: aix.c: off by one bug blkcg: don't call into policy draining if root_blkg is already gone Revert "bio: modify __bio_add_page() to accept pages that don't start a new segment" bio: modify __bio_add_page() to accept pages that don't start a new segment block: fix SG_[GS]ET_RESERVED_SIZE ioctl when max_sectors is huge block: fix BLKSECTGET ioctl when max_sectors is greater than USHRT_MAX block/partitions/efi.c: kerneldoc fixing block/partitions/msdos.c: code clean-up block/partitions/amiga.c: replace nolevel printk by pr_err block/partitions/aix.c: replace count*size kzalloc by kcalloc bio-integrity: add "bip_max_vcnt" into struct bio_integrity_payload blk-mq: use percpu_ref for mq usage count blk-mq: collapse __blk_mq_drain_queue() into blk_mq_freeze_queue() blk-mq: decouble blk-mq freezing from generic bypassing block, blk-mq: draining can't be skipped even if bypass_depth was non-zero blk-mq: fix a memory ordering bug in blk_mq_queue_enter()
Diffstat (limited to 'include')
-rw-r--r--include/linux/bio.h1
-rw-r--r--include/linux/blkdev.h4
2 files changed, 4 insertions, 1 deletions
diff --git a/include/linux/bio.h b/include/linux/bio.h
index d2633ee099d9..b39e5000ff58 100644
--- a/include/linux/bio.h
+++ b/include/linux/bio.h
@@ -308,6 +308,7 @@ struct bio_integrity_payload {
unsigned short bip_slab; /* slab the bip came from */
unsigned short bip_vcnt; /* # of integrity bio_vecs */
+ unsigned short bip_max_vcnt; /* integrity bio_vec slots */
unsigned bip_owns_buf:1; /* should free bip_buf */
struct work_struct bip_work; /* I/O completion */
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 8699bcf5f099..518b46555b80 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -21,6 +21,7 @@
#include <linux/bsg.h>
#include <linux/smp.h>
#include <linux/rcupdate.h>
+#include <linux/percpu-refcount.h>
#include <asm/scatterlist.h>
@@ -470,6 +471,7 @@ struct request_queue {
struct mutex sysfs_lock;
int bypass_depth;
+ int mq_freeze_depth;
#if defined(CONFIG_BLK_DEV_BSG)
bsg_job_fn *bsg_job_fn;
@@ -483,7 +485,7 @@ struct request_queue {
#endif
struct rcu_head rcu_head;
wait_queue_head_t mq_freeze_wq;
- struct percpu_counter mq_usage_counter;
+ struct percpu_ref mq_usage_counter;
struct list_head all_q_node;
struct blk_mq_tag_set *tag_set;