From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jaegeuk Kim Subject: [PATCH 3/7] f2fs: try to keep CP_TRIMMED_FLAG after successful umount Date: Tue, 29 Jan 2019 07:47:13 +0800 Message-ID: <20190128234717.77225-3-jaegeuk@kernel.org> References: <20190128234717.77225-1-jaegeuk@kernel.org> Mime-Version: 1.0 Content-Transfer-Encoding: 8bit Return-path: In-Reply-To: <20190128234717.77225-1-jaegeuk@kernel.org> Sender: linux-kernel-owner@vger.kernel.org To: linux-kernel@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net Cc: Jaegeuk Kim List-Id: linux-f2fs-devel.lists.sourceforge.net If every discard were issued successfully, we can avoid further discard. Signed-off-by: Jaegeuk Kim --- fs/f2fs/segment.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c index 342b720fb4db..fdd8cd21522f 100644 --- a/fs/f2fs/segment.c +++ b/fs/f2fs/segment.c @@ -1063,6 +1063,8 @@ static void __init_discard_policy(struct f2fs_sb_info *sbi, } else if (discard_type == DPOLICY_UMOUNT) { dpolicy->max_requests = UINT_MAX; dpolicy->io_aware = false; + /* we need to issue all to keep CP_TRIMMED_FLAG */ + dpolicy->granularity = 1; } } -- 2.19.0.605.g01d371f741-goog