* [PATCH] f2fs: make discard command directly
@ 2017-01-12 0:48 Jaegeuk Kim
2017-01-12 14:10 ` Christoph Hellwig
0 siblings, 1 reply; 3+ messages in thread
From: Jaegeuk Kim @ 2017-01-12 0:48 UTC (permalink / raw)
To: linux-kernel, linux-fsdevel, linux-f2fs-devel; +Cc: Jaegeuk Kim
This can reduce the backporting efforts.
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
fs/f2fs/segment.c | 30 +++++++++++++++++-------------
1 file changed, 17 insertions(+), 13 deletions(-)
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 0738f48293cc..ebfd5cd7619e 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -673,8 +673,8 @@ static void f2fs_submit_bio_wait_endio(struct bio *bio)
static int __f2fs_issue_discard_async(struct f2fs_sb_info *sbi,
struct block_device *bdev, block_t blkstart, block_t blklen)
{
+ struct bio_entry *be;
struct bio *bio = NULL;
- int err;
trace_f2fs_issue_discard(sbi->sb, blkstart, blklen);
@@ -683,20 +683,24 @@ static int __f2fs_issue_discard_async(struct f2fs_sb_info *sbi,
blkstart -= FDEV(devi).start_blk;
}
- err = __blkdev_issue_discard(bdev,
- SECTOR_FROM_BLOCK(blkstart),
- SECTOR_FROM_BLOCK(blklen),
- GFP_NOFS, 0, &bio);
- if (!err && bio) {
- struct bio_entry *be = __add_bio_entry(sbi, bio);
- bio->bi_private = be;
- bio->bi_end_io = f2fs_submit_bio_wait_endio;
- bio->bi_opf |= REQ_SYNC;
- submit_bio(bio);
- }
+ if (!blk_queue_discard(bdev_get_queue(bdev)))
+ return 0;
- return err;
+ /* we always submit 4KB-aligned discard commands. */
+ bio = f2fs_bio_alloc(0);
+ bio->bi_iter.bi_sector = SECTOR_FROM_BLOCK(blkstart);
+ bio->bi_bdev = bdev;
+ bio_set_op_attrs(bio, REQ_OP_DISCARD, 0);
+ bio->bi_iter.bi_size = SECTOR_FROM_BLOCK(blklen) << 9;
+ bio->bi_end_io = f2fs_submit_bio_wait_endio;
+
+ be = __add_bio_entry(sbi, bio);
+
+ bio->bi_private = be;
+ bio->bi_opf |= REQ_SYNC;
+ submit_bio(bio);
+ return 0;
}
#ifdef CONFIG_BLK_DEV_ZONED
--
2.11.0
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH] f2fs: make discard command directly
2017-01-12 0:48 [PATCH] f2fs: make discard command directly Jaegeuk Kim
@ 2017-01-12 14:10 ` Christoph Hellwig
2017-01-12 18:39 ` Jaegeuk Kim
0 siblings, 1 reply; 3+ messages in thread
From: Christoph Hellwig @ 2017-01-12 14:10 UTC (permalink / raw)
To: Jaegeuk Kim; +Cc: linux-kernel, linux-fsdevel, linux-f2fs-devel
On Wed, Jan 11, 2017 at 04:48:48PM -0800, Jaegeuk Kim wrote:
> This can reduce the backporting efforts.
NAK. For one that is not a valid excuse for anything, and second
your remove respecting the granularity.
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH] f2fs: make discard command directly
2017-01-12 14:10 ` Christoph Hellwig
@ 2017-01-12 18:39 ` Jaegeuk Kim
0 siblings, 0 replies; 3+ messages in thread
From: Jaegeuk Kim @ 2017-01-12 18:39 UTC (permalink / raw)
To: Christoph Hellwig; +Cc: linux-kernel, linux-fsdevel, linux-f2fs-devel
On 01/12, Christoph Hellwig wrote:
> On Wed, Jan 11, 2017 at 04:48:48PM -0800, Jaegeuk Kim wrote:
> > This can reduce the backporting efforts.
>
> NAK. For one that is not a valid excuse for anything, and second
> your remove respecting the granularity.
Okay, I'll try from backporting side without this. :)
Thanks,
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2017-01-12 18:41 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2017-01-12 0:48 [PATCH] f2fs: make discard command directly Jaegeuk Kim
2017-01-12 14:10 ` Christoph Hellwig
2017-01-12 18:39 ` Jaegeuk Kim
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).