aboutsummaryrefslogtreecommitdiffstats
path: root/include/linux/bio.h
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2009-06-11 13:52:27 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2009-06-11 14:10:35 -0400
commitc9059598ea8981d02356eead3188bf7fa4d717b8 (patch)
tree03e73b20a30e988da7c6a3e0ad93b2dc5843274d /include/linux/bio.h
parent0a33f80a8373eca7f4bea3961d1346c3815fa5ed (diff)
parentb0fd271d5fba0b2d00888363f3869e3f9b26caa9 (diff)
Merge branch 'for-2.6.31' of git://git.kernel.dk/linux-2.6-block
* 'for-2.6.31' of git://git.kernel.dk/linux-2.6-block: (153 commits) block: add request clone interface (v2) floppy: fix hibernation ramdisk: remove long-deprecated "ramdisk=" boot-time parameter fs/bio.c: add missing __user annotation block: prevent possible io_context->refcount overflow Add serial number support for virtio_blk, V4a block: Add missing bounce_pfn stacking and fix comments Revert "block: Fix bounce limit setting in DM" cciss: decode unit attention in SCSI error handling code cciss: Remove no longer needed sendcmd reject processing code cciss: change SCSI error handling routines to work with interrupts enabled. cciss: separate error processing and command retrying code in sendcmd_withirq_core() cciss: factor out fix target status processing code from sendcmd functions cciss: simplify interface of sendcmd() and sendcmd_withirq() cciss: factor out core of sendcmd_withirq() for use by SCSI error handling code cciss: Use schedule_timeout_uninterruptible in SCSI error handling code block: needs to set the residual length of a bidi request Revert "block: implement blkdev_readpages" block: Fix bounce limit setting in DM Removed reference to non-existing file Documentation/PCI/PCI-DMA-mapping.txt ... Manually fix conflicts with tracing updates in: block/blk-sysfs.c drivers/ide/ide-atapi.c drivers/ide/ide-cd.c drivers/ide/ide-floppy.c drivers/ide/ide-tape.c include/trace/events/block.h kernel/trace/blktrace.c
Diffstat (limited to 'include/linux/bio.h')
-rw-r--r--include/linux/bio.h10
1 files changed, 5 insertions, 5 deletions
diff --git a/include/linux/bio.h b/include/linux/bio.h
index 7b214fd672a2..12737be58601 100644
--- a/include/linux/bio.h
+++ b/include/linux/bio.h
@@ -218,12 +218,12 @@ struct bio {
218#define bio_sectors(bio) ((bio)->bi_size >> 9) 218#define bio_sectors(bio) ((bio)->bi_size >> 9)
219#define bio_empty_barrier(bio) (bio_barrier(bio) && !bio_has_data(bio) && !bio_discard(bio)) 219#define bio_empty_barrier(bio) (bio_barrier(bio) && !bio_has_data(bio) && !bio_discard(bio))
220 220
221static inline unsigned int bio_cur_sectors(struct bio *bio) 221static inline unsigned int bio_cur_bytes(struct bio *bio)
222{ 222{
223 if (bio->bi_vcnt) 223 if (bio->bi_vcnt)
224 return bio_iovec(bio)->bv_len >> 9; 224 return bio_iovec(bio)->bv_len;
225 else /* dataless requests such as discard */ 225 else /* dataless requests such as discard */
226 return bio->bi_size >> 9; 226 return bio->bi_size;
227} 227}
228 228
229static inline void *bio_data(struct bio *bio) 229static inline void *bio_data(struct bio *bio)
@@ -279,7 +279,7 @@ static inline int bio_has_allocated_vec(struct bio *bio)
279#define __BIO_SEG_BOUNDARY(addr1, addr2, mask) \ 279#define __BIO_SEG_BOUNDARY(addr1, addr2, mask) \
280 (((addr1) | (mask)) == (((addr2) - 1) | (mask))) 280 (((addr1) | (mask)) == (((addr2) - 1) | (mask)))
281#define BIOVEC_SEG_BOUNDARY(q, b1, b2) \ 281#define BIOVEC_SEG_BOUNDARY(q, b1, b2) \
282 __BIO_SEG_BOUNDARY(bvec_to_phys((b1)), bvec_to_phys((b2)) + (b2)->bv_len, (q)->seg_boundary_mask) 282 __BIO_SEG_BOUNDARY(bvec_to_phys((b1)), bvec_to_phys((b2)) + (b2)->bv_len, queue_segment_boundary((q)))
283#define BIO_SEG_BOUNDARY(q, b1, b2) \ 283#define BIO_SEG_BOUNDARY(q, b1, b2) \
284 BIOVEC_SEG_BOUNDARY((q), __BVEC_END((b1)), __BVEC_START((b2))) 284 BIOVEC_SEG_BOUNDARY((q), __BVEC_END((b1)), __BVEC_START((b2)))
285 285
@@ -506,7 +506,7 @@ static inline int bio_has_data(struct bio *bio)
506} 506}
507 507
508/* 508/*
509 * BIO list managment for use by remapping drivers (e.g. DM or MD). 509 * BIO list management for use by remapping drivers (e.g. DM or MD) and loop.
510 * 510 *
511 * A bio_list anchors a singly-linked list of bios chained through the bi_next 511 * A bio_list anchors a singly-linked list of bios chained through the bi_next
512 * member of the bio. The bio_list also caches the last list member to allow 512 * member of the bio. The bio_list also caches the last list member to allow