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authorKent Overstreet <koverstreet@google.com>2012-09-10 14:03:28 -0700
committerKent Overstreet <koverstreet@google.com>2013-03-23 14:26:31 -0700
commita07876064a0b73ab5ef1ebcf14b1cf0231c07858 (patch)
tree74a0567401bcdb60f5a8e65c76d5a3a21aeb548f /drivers/md
parentcb34e057ad22a1c2c6f2cb6cd1cbd05cc2f28f28 (diff)
downloadblackbird-op-linux-a07876064a0b73ab5ef1ebcf14b1cf0231c07858.tar.gz
blackbird-op-linux-a07876064a0b73ab5ef1ebcf14b1cf0231c07858.zip
block: Add bio_alloc_pages()
More utility code to replace stuff that's getting open coded. Signed-off-by: Kent Overstreet <koverstreet@google.com> CC: Jens Axboe <axboe@kernel.dk> CC: NeilBrown <neilb@suse.de>
Diffstat (limited to 'drivers/md')
-rw-r--r--drivers/md/raid1.c16
1 files changed, 3 insertions, 13 deletions
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index a7ea954abe1d..aeb4e3f74791 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -92,7 +92,6 @@ static void r1bio_pool_free(void *r1_bio, void *data)
static void * r1buf_pool_alloc(gfp_t gfp_flags, void *data)
{
struct pool_info *pi = data;
- struct page *page;
struct r1bio *r1_bio;
struct bio *bio;
int i, j;
@@ -122,14 +121,10 @@ static void * r1buf_pool_alloc(gfp_t gfp_flags, void *data)
j = 1;
while(j--) {
bio = r1_bio->bios[j];
- for (i = 0; i < RESYNC_PAGES; i++) {
- page = alloc_page(gfp_flags);
- if (unlikely(!page))
- goto out_free_pages;
+ bio->bi_vcnt = RESYNC_PAGES;
- bio->bi_io_vec[i].bv_page = page;
- bio->bi_vcnt = i+1;
- }
+ if (bio_alloc_pages(bio, gfp_flags))
+ goto out_free_bio;
}
/* If not user-requests, copy the page pointers to all bios */
if (!test_bit(MD_RECOVERY_REQUESTED, &pi->mddev->recovery)) {
@@ -143,11 +138,6 @@ static void * r1buf_pool_alloc(gfp_t gfp_flags, void *data)
return r1_bio;
-out_free_pages:
- for (j=0 ; j < pi->raid_disks; j++)
- for (i=0; i < r1_bio->bios[j]->bi_vcnt ; i++)
- put_page(r1_bio->bios[j]->bi_io_vec[i].bv_page);
- j = -1;
out_free_bio:
while (++j < pi->raid_disks)
bio_put(r1_bio->bios[j]);
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