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authorBjorn Helgaas <bhelgaas@google.com>2012-09-13 17:54:57 -0400
committerBjorn Helgaas <bhelgaas@google.com>2012-09-13 17:54:57 -0400
commit9a5d5bd8480068c5829e3d997ee21dab9b3ed05f (patch)
treef8bea83deb720d4fa3a9ada8d4845406c2d7c8f0 /include/linux/blkdev.h
parent271fd03a3013b106ccc178d54219c1be0c9759b7 (diff)
parent55d512e245bc7699a8800e23df1a24195dd08217 (diff)
Merge commit 'v3.6-rc5' into pci/gavin-window-alignment
* commit 'v3.6-rc5': (1098 commits) Linux 3.6-rc5 HID: tpkbd: work even if the new Lenovo Keyboard driver is not configured Remove user-triggerable BUG from mpol_to_str xen/pciback: Fix proper FLR steps. uml: fix compile error in deliver_alarm() dj: memory scribble in logi_dj Fix order of arguments to compat_put_time[spec|val] xen: Use correct masking in xen_swiotlb_alloc_coherent. xen: fix logical error in tlb flushing xen/p2m: Fix one-off error in checking the P2M tree directory. powerpc: Don't use __put_user() in patch_instruction powerpc: Make sure IPI handlers see data written by IPI senders powerpc: Restore correct DSCR in context switch powerpc: Fix DSCR inheritance in copy_thread() powerpc: Keep thread.dscr and thread.dscr_inherit in sync powerpc: Update DSCR on all CPUs when writing sysfs dscr_default powerpc/powernv: Always go into nap mode when CPU is offline powerpc: Give hypervisor decrementer interrupts their own handler powerpc/vphn: Fix arch_update_cpu_topology() return value ARM: gemini: fix the gemini build ... Conflicts: drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c drivers/rapidio/devices/tsi721.c
Diffstat (limited to 'include/linux/blkdev.h')
-rw-r--r--include/linux/blkdev.h14
1 files changed, 13 insertions, 1 deletions
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 4e72a9d48232..4a2ab7c85393 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -601,7 +601,7 @@ static inline void blk_clear_rl_full(struct request_list *rl, bool sync)
601 * it already be started by driver. 601 * it already be started by driver.
602 */ 602 */
603#define RQ_NOMERGE_FLAGS \ 603#define RQ_NOMERGE_FLAGS \
604 (REQ_NOMERGE | REQ_STARTED | REQ_SOFTBARRIER | REQ_FLUSH | REQ_FUA) 604 (REQ_NOMERGE | REQ_STARTED | REQ_SOFTBARRIER | REQ_FLUSH | REQ_FUA | REQ_DISCARD)
605#define rq_mergeable(rq) \ 605#define rq_mergeable(rq) \
606 (!((rq)->cmd_flags & RQ_NOMERGE_FLAGS) && \ 606 (!((rq)->cmd_flags & RQ_NOMERGE_FLAGS) && \
607 (((rq)->cmd_flags & REQ_DISCARD) || \ 607 (((rq)->cmd_flags & REQ_DISCARD) || \
@@ -894,6 +894,8 @@ extern void blk_queue_flush_queueable(struct request_queue *q, bool queueable);
894extern struct backing_dev_info *blk_get_backing_dev_info(struct block_device *bdev); 894extern struct backing_dev_info *blk_get_backing_dev_info(struct block_device *bdev);
895 895
896extern int blk_rq_map_sg(struct request_queue *, struct request *, struct scatterlist *); 896extern int blk_rq_map_sg(struct request_queue *, struct request *, struct scatterlist *);
897extern int blk_bio_map_sg(struct request_queue *q, struct bio *bio,
898 struct scatterlist *sglist);
897extern void blk_dump_rq_flags(struct request *, char *); 899extern void blk_dump_rq_flags(struct request *, char *);
898extern long nr_blockdev_pages(void); 900extern long nr_blockdev_pages(void);
899 901
@@ -1139,6 +1141,16 @@ static inline int queue_limit_discard_alignment(struct queue_limits *lim, sector
1139 & (lim->discard_granularity - 1); 1141 & (lim->discard_granularity - 1);
1140} 1142}
1141 1143
1144static inline int bdev_discard_alignment(struct block_device *bdev)
1145{
1146 struct request_queue *q = bdev_get_queue(bdev);
1147
1148 if (bdev != bdev->bd_contains)
1149 return bdev->bd_part->discard_alignment;
1150
1151 return q->limits.discard_alignment;
1152}
1153
1142static inline unsigned int queue_discard_zeroes_data(struct request_queue *q) 1154static inline unsigned int queue_discard_zeroes_data(struct request_queue *q)
1143{ 1155{
1144 if (q->limits.max_discard_sectors && q->limits.discard_zeroes_data == 1) 1156 if (q->limits.max_discard_sectors && q->limits.discard_zeroes_data == 1)