From 92592285710aebe2de9afa38315b5c3914556905 Mon Sep 17 00:00:00 2001 From: Jaegeuk Kim Date: Wed, 22 Feb 2017 20:18:35 -0800 Subject: [PATCH] f2fs: check discard alignment only for SEQWRITE zones For converntional zones, we don't need to align discard commands to exact zone size. Reviewed-by: Chao Yu Signed-off-by: Jaegeuk Kim --- 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 df60e1502b82..3e95db5375ed 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); -- 2.20.1