diff options
Diffstat (limited to 'fs/bio.c')
| -rw-r--r-- | fs/bio.c | 33 |
1 files changed, 17 insertions, 16 deletions
@@ -26,10 +26,9 @@ #include <linux/mempool.h> #include <linux/workqueue.h> #include <linux/blktrace_api.h> -#include <trace/block.h> #include <scsi/sg.h> /* for struct sg_iovec */ -DEFINE_TRACE(block_split); +#include <trace/events/block.h> /* * Test patch to inline a certain number of bi_io_vec's inside the bio @@ -359,9 +358,9 @@ static void bio_kmalloc_destructor(struct bio *bio) * * If %__GFP_WAIT is set, then bio_alloc will always be able to allocate * a bio. This is due to the mempool guarantees. To make this work, callers - * must never allocate more than 1 bio at the time from this pool. Callers + * must never allocate more than 1 bio at a time from this pool. Callers * that need to allocate more than 1 bio must always submit the previously - * allocate bio for IO before attempting to allocate a new one. Failure to + * allocated bio for IO before attempting to allocate a new one. Failure to * do so can cause livelocks under memory pressure. * **/ @@ -499,11 +498,11 @@ int bio_get_nr_vecs(struct block_device *bdev) struct request_queue *q = bdev_get_queue(bdev); int nr_pages; - nr_pages = ((q->max_sectors << 9) + PAGE_SIZE - 1) >> PAGE_SHIFT; - if (nr_pages > q->max_phys_segments) - nr_pages = q->max_phys_segments; - if (nr_pages > q->max_hw_segments) - nr_pages = q->max_hw_segments; + nr_pages = ((queue_max_sectors(q) << 9) + PAGE_SIZE - 1) >> PAGE_SHIFT; + if (nr_pages > queue_max_phys_segments(q)) + nr_pages = queue_max_phys_segments(q); + if (nr_pages > queue_max_hw_segments(q)) + nr_pages = queue_max_hw_segments(q); return nr_pages; } @@ -562,8 +561,8 @@ static int __bio_add_page(struct request_queue *q, struct bio *bio, struct page * make this too complex. */ - while (bio->bi_phys_segments >= q->max_phys_segments - || bio->bi_phys_segments >= q->max_hw_segments) { + while (bio->bi_phys_segments >= queue_max_phys_segments(q) + || bio->bi_phys_segments >= queue_max_hw_segments(q)) { if (retried_segments) return 0; @@ -634,7 +633,8 @@ static int __bio_add_page(struct request_queue *q, struct bio *bio, struct page int bio_add_pc_page(struct request_queue *q, struct bio *bio, struct page *page, unsigned int len, unsigned int offset) { - return __bio_add_page(q, bio, page, len, offset, q->max_hw_sectors); + return __bio_add_page(q, bio, page, len, offset, + queue_max_hw_sectors(q)); } /** @@ -654,7 +654,7 @@ int bio_add_page(struct bio *bio, struct page *page, unsigned int len, unsigned int offset) { struct request_queue *q = bdev_get_queue(bio->bi_bdev); - return __bio_add_page(q, bio, page, len, offset, q->max_sectors); + return __bio_add_page(q, bio, page, len, offset, queue_max_sectors(q)); } struct bio_map_data { @@ -721,7 +721,7 @@ static int __bio_copy_iov(struct bio *bio, struct bio_vec *iovecs, while (bv_len && iov_idx < iov_count) { unsigned int bytes; - char *iov_addr; + char __user *iov_addr; bytes = min_t(unsigned int, iov[iov_idx].iov_len - iov_off, bv_len); @@ -1201,7 +1201,7 @@ static void bio_copy_kern_endio(struct bio *bio, int err) char *addr = page_address(bvec->bv_page); int len = bmd->iovecs[i].bv_len; - if (read && !err) + if (read) memcpy(p, addr, len); __free_page(bvec->bv_page); @@ -1490,11 +1490,12 @@ struct bio_pair *bio_split(struct bio *bi, int first_sectors) sector_t bio_sector_offset(struct bio *bio, unsigned short index, unsigned int offset) { - unsigned int sector_sz = queue_hardsect_size(bio->bi_bdev->bd_disk->queue); + unsigned int sector_sz; struct bio_vec *bv; sector_t sectors; int i; + sector_sz = queue_logical_block_size(bio->bi_bdev->bd_disk->queue); sectors = 0; if (index >= bio->bi_idx) |