From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.kernel.org ([198.145.29.136]:55200 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933159AbdDSBp1 (ORCPT ); Tue, 18 Apr 2017 21:45:27 -0400 From: Jaegeuk Kim To: linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net Cc: Jaegeuk Kim Subject: [PATCH 3/3] f2fs: assign allocation hint for warm/cold data Date: Tue, 18 Apr 2017 18:45:20 -0700 Message-Id: <20170419014520.12536-3-jaegeuk@kernel.org> In-Reply-To: <20170419014520.12536-1-jaegeuk@kernel.org> References: <20170419014520.12536-1-jaegeuk@kernel.org> Sender: linux-fsdevel-owner@vger.kernel.org List-ID: This patch gives slower device region to warm/cold data area more eagerly. Signed-off-by: Jaegeuk Kim --- fs/f2fs/gc.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c index d988c1aaf132..eb1846a80da3 100644 --- a/fs/f2fs/gc.c +++ b/fs/f2fs/gc.c @@ -1028,4 +1028,9 @@ void build_gc_manager(struct f2fs_sb_info *sbi) sbi->fggc_threshold = div64_u64((main_count - ovp_count) * BLKS_PER_SEC(sbi), (main_count - resv_count)); + + /* give warm/cold data area from slower device */ + if (sbi->s_ndevs) + sbi->last_victim[ALLOC_NEXT] = + GET_SEGNO(sbi, FDEV(0).end_blk) + 1; } -- 2.11.0