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Message-Id: <20170223042850.43456-4-jaegeuk@kernel.org>
Date: Wed, 22 Feb 2017 20:28:50 -0800
From: Jaegeuk Kim <jaegeuk@...nel.org>
To: linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org,
linux-f2fs-devel@...ts.sourceforge.net
Cc: Jaegeuk Kim <jaegeuk@...nel.org>
Subject: [PATCH 4/4] f2fs: check discard alignment only for SEQWRITE zones
For converntional zones, we don't need to align discard commands to exact zone
size.
Signed-off-by: Jaegeuk Kim <jaegeuk@...nel.org>
---
fs/f2fs/segment.c | 24 ++++++++++++------------
1 file changed, 12 insertions(+), 12 deletions(-)
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index d76e49c3d1b4..6fff1c58b3b1 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -793,24 +793,13 @@ static int __f2fs_issue_discard_async(struct f2fs_sb_info *sbi,
static int __f2fs_issue_discard_zone(struct f2fs_sb_info *sbi,
struct block_device *bdev, block_t blkstart, block_t blklen)
{
- sector_t nr_sects = SECTOR_FROM_BLOCK(blklen);
- sector_t sector;
+ sector_t sector, nr_sects;
int devi = 0;
if (sbi->s_ndevs) {
devi = f2fs_target_device_index(sbi, blkstart);
blkstart -= FDEV(devi).start_blk;
}
- sector = SECTOR_FROM_BLOCK(blkstart);
-
- if (sector & (bdev_zone_sectors(bdev) - 1) ||
- nr_sects != bdev_zone_sectors(bdev)) {
- f2fs_msg(sbi->sb, KERN_INFO,
- "(%d) %s: Unaligned discard attempted (block %x + %x)",
- devi, sbi->s_ndevs ? FDEV(devi).path: "",
- blkstart, blklen);
- return -EIO;
- }
/*
* We need to know the type of the zone: for conventional zones,
@@ -825,6 +814,17 @@ static int __f2fs_issue_discard_zone(struct f2fs_sb_info *sbi,
return __f2fs_issue_discard_async(sbi, bdev, blkstart, blklen);
case BLK_ZONE_TYPE_SEQWRITE_REQ:
case BLK_ZONE_TYPE_SEQWRITE_PREF:
+ sector = SECTOR_FROM_BLOCK(blkstart);
+ nr_sects = SECTOR_FROM_BLOCK(blklen);
+
+ if (sector & (bdev_zone_sectors(bdev) - 1) ||
+ nr_sects != bdev_zone_sectors(bdev)) {
+ f2fs_msg(sbi->sb, KERN_INFO,
+ "(%d) %s: Unaligned discard attempted (block %x + %x)",
+ devi, sbi->s_ndevs ? FDEV(devi).path: "",
+ blkstart, blklen);
+ return -EIO;
+ }
trace_f2fs_issue_reset_zone(bdev, blkstart);
return blkdev_reset_zones(bdev, sector,
nr_sects, GFP_NOFS);
--
2.11.0
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