From dd203468f07194a5a6e3999f01c3a22d579e9aee Mon Sep 17 00:00:00 2001 From: Yangtao Li Date: Mon, 5 Dec 2022 22:56:03 +0800 Subject: [PATCH] f2fs: fix iostat parameter for discard [ Upstream commit 15e38ee44d50cad264da80ef75626b9224ddc4a3 ] Just like other data we count uses the number of bytes as the basic unit, but discard uses the number of cmds as the statistical unit. In fact the discard command contains the number of blocks, so let's change to the number of bytes as the base unit. Fixes: b0af6d491a6b ("f2fs: add app/fs io stat") Signed-off-by: Yangtao Li Signed-off-by: Jaegeuk Kim Signed-off-by: Sasha Levin --- fs/f2fs/segment.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c index c568821b8463..c1d0713666ee 100644 --- a/fs/f2fs/segment.c +++ b/fs/f2fs/segment.c @@ -1170,7 +1170,7 @@ submit: atomic_inc(&dcc->issued_discard); - f2fs_update_iostat(sbi, NULL, FS_DISCARD, 1); + f2fs_update_iostat(sbi, NULL, FS_DISCARD, len * F2FS_BLKSIZE); lstart += len; start += len;