From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:32890 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756039AbdGYBsO (ORCPT ); Mon, 24 Jul 2017 21:48:14 -0400 Subject: Patch "f2fs: Do not issue small discards in LFS mode" has been added to the 4.12-stable tree To: damien.lemoal@wdc.com, gregkh@linuxfoundation.org, jaegeuk@kernel.org, yuchao0@huawei.com Cc: , From: Date: Mon, 24 Jul 2017 18:48:08 -0700 Message-ID: <150094728818570@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org List-ID: This is a note to let you know that I've just added the patch titled f2fs: Do not issue small discards in LFS mode to the 4.12-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: f2fs-do-not-issue-small-discards-in-lfs-mode.patch and it can be found in the queue-4.12 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From acfd2810c75b0625897fc119a2d3a9c26cc0e405 Mon Sep 17 00:00:00 2001 From: Damien Le Moal Date: Fri, 26 May 2017 17:04:40 +0900 Subject: f2fs: Do not issue small discards in LFS mode From: Damien Le Moal commit acfd2810c75b0625897fc119a2d3a9c26cc0e405 upstream. clear_prefree_segments() issues small discards after discarding full segments. These small discards may not be section aligned, so not zone aligned on a zoned block device, causing __f2fs_iissue_discard_zone() to fail. Fix this by not issuing small discards for a volume mounted with the BLKZONED feature enabled. Signed-off-by: Damien Le Moal Reviewed-by: Chao Yu Signed-off-by: Jaegeuk Kim Signed-off-by: Greg Kroah-Hartman --- fs/f2fs/segment.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) --- a/fs/f2fs/segment.c +++ b/fs/f2fs/segment.c @@ -1329,7 +1329,8 @@ find_next: sbi->blocks_per_seg, cur_pos); len = next_pos - cur_pos; - if (force && len < cpc->trim_minlen) + if (f2fs_sb_mounted_blkzoned(sbi->sb) || + (force && len < cpc->trim_minlen)) goto skip; f2fs_issue_discard(sbi, entry->start_blkaddr + cur_pos, Patches currently in stable-queue which might be from damien.lemoal@wdc.com are queue-4.12/f2fs-do-not-issue-small-discards-in-lfs-mode.patch