diff options
| author | Len Brown <len.brown@intel.com> | 2009-09-19 04:11:26 (GMT) |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2009-09-19 04:11:26 (GMT) |
| commit | c602c65b2f81d14456771d1e3f15d1381f4b7efa (patch) | |
| tree | f1f833c8dd6c1519eeb101be32f7fe54a9605af5 /block/ioctl.c | |
| parent | 3834f47291df475be3f0f0fb7ccaa098967cc054 (diff) | |
| parent | 78f28b7c555359c67c2a0d23f7436e915329421e (diff) | |
| download | linux-fsl-qoriq-c602c65b2f81d14456771d1e3f15d1381f4b7efa.tar.xz | |
Merge branch 'linus' into sfi-release
Conflicts:
arch/x86/kernel/setup.c
drivers/acpi/power.c
init/main.c
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'block/ioctl.c')
| -rw-r--r-- | block/ioctl.c | 49 |
1 files changed, 2 insertions, 47 deletions
diff --git a/block/ioctl.c b/block/ioctl.c index 500e4c7..d3e6b58 100644 --- a/block/ioctl.c +++ b/block/ioctl.c @@ -112,22 +112,9 @@ static int blkdev_reread_part(struct block_device *bdev) return res; } -static void blk_ioc_discard_endio(struct bio *bio, int err) -{ - if (err) { - if (err == -EOPNOTSUPP) - set_bit(BIO_EOPNOTSUPP, &bio->bi_flags); - clear_bit(BIO_UPTODATE, &bio->bi_flags); - } - complete(bio->bi_private); -} - static int blk_ioctl_discard(struct block_device *bdev, uint64_t start, uint64_t len) { - struct request_queue *q = bdev_get_queue(bdev); - int ret = 0; - if (start & 511) return -EINVAL; if (len & 511) @@ -137,40 +124,8 @@ static int blk_ioctl_discard(struct block_device *bdev, uint64_t start, if (start + len > (bdev->bd_inode->i_size >> 9)) return -EINVAL; - - if (!q->prepare_discard_fn) - return -EOPNOTSUPP; - - while (len && !ret) { - DECLARE_COMPLETION_ONSTACK(wait); - struct bio *bio; - - bio = bio_alloc(GFP_KERNEL, 0); - - bio->bi_end_io = blk_ioc_discard_endio; - bio->bi_bdev = bdev; - bio->bi_private = &wait; - bio->bi_sector = start; - - if (len > queue_max_hw_sectors(q)) { - bio->bi_size = queue_max_hw_sectors(q) << 9; - len -= queue_max_hw_sectors(q); - start += queue_max_hw_sectors(q); - } else { - bio->bi_size = len << 9; - len = 0; - } - submit_bio(DISCARD_NOBARRIER, bio); - - wait_for_completion(&wait); - - if (bio_flagged(bio, BIO_EOPNOTSUPP)) - ret = -EOPNOTSUPP; - else if (!bio_flagged(bio, BIO_UPTODATE)) - ret = -EIO; - bio_put(bio); - } - return ret; + return blkdev_issue_discard(bdev, start, len, GFP_KERNEL, + DISCARD_FL_WAIT); } static int put_ushort(unsigned long arg, unsigned short val) |