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| author | Christoph Hellwig <hch@lst.de> | 2010-09-16 20:51:46 +0200 |
|---|---|---|
| committer | Jens Axboe <jaxboe@fusionio.com> | 2010-09-16 20:52:58 +0200 |
| commit | dd3932eddf428571762596e17b65f5dc92ca361b (patch) | |
| tree | 57cec5ae2f862037f78b7e993323d77955bb6463 /mm/swapfile.c | |
| parent | 8786fb70ccb36c7cff64680bb80c46d3a09d44db (diff) | |
| download | linux-stable-dd3932eddf428571762596e17b65f5dc92ca361b.tar.gz linux-stable-dd3932eddf428571762596e17b65f5dc92ca361b.tar.bz2 linux-stable-dd3932eddf428571762596e17b65f5dc92ca361b.zip | |
block: remove BLKDEV_IFL_WAIT
All the blkdev_issue_* helpers can only sanely be used for synchronous
caller. To issue cache flushes or barriers asynchronously the caller needs
to set up a bio by itself with a completion callback to move the asynchronous
state machine ahead. So drop the BLKDEV_IFL_WAIT flag that is always
specified when calling blkdev_issue_* and also remove the now unused flags
argument to blkdev_issue_flush and blkdev_issue_zeroout. For
blkdev_issue_discard we need to keep it for the secure discard flag, which
gains a more descriptive name and loses the bitops vs flag confusion.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
Diffstat (limited to 'mm/swapfile.c')
| -rw-r--r-- | mm/swapfile.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/mm/swapfile.c b/mm/swapfile.c index 68cda164dff6..e132e1708acc 100644 --- a/mm/swapfile.c +++ b/mm/swapfile.c @@ -141,7 +141,7 @@ static int discard_swap(struct swap_info_struct *si) nr_blocks = ((sector_t)se->nr_pages - 1) << (PAGE_SHIFT - 9); if (nr_blocks) { err = blkdev_issue_discard(si->bdev, start_block, - nr_blocks, GFP_KERNEL, BLKDEV_IFL_WAIT); + nr_blocks, GFP_KERNEL, 0); if (err) return err; cond_resched(); @@ -152,7 +152,7 @@ static int discard_swap(struct swap_info_struct *si) nr_blocks = (sector_t)se->nr_pages << (PAGE_SHIFT - 9); err = blkdev_issue_discard(si->bdev, start_block, - nr_blocks, GFP_KERNEL, BLKDEV_IFL_WAIT); + nr_blocks, GFP_KERNEL, 0); if (err) break; @@ -191,7 +191,7 @@ static void discard_swap_cluster(struct swap_info_struct *si, start_block <<= PAGE_SHIFT - 9; nr_blocks <<= PAGE_SHIFT - 9; if (blkdev_issue_discard(si->bdev, start_block, - nr_blocks, GFP_NOIO, BLKDEV_IFL_WAIT)) + nr_blocks, GFP_NOIO, 0)) break; } |