From: Yunlei He <heyunlei@huawei.com>
Date: Wed, 4 Apr 2018 09:29:05 +0000 (+0800)
Subject: f2fs: issue all big range discards in umount process
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=241b493d8fbda0ddbdcbd1e9be36c37b8a351281;p=openwrt%2Fstaging%2Fblogic.git

f2fs: issue all big range discards in umount process

This patch modify max_requests to UINT_MAX, to issue
all big range discards in umount.

Signed-off-by: Yunlei He <heyunlei@huawei.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---

diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index b1e58b10425f..a7ec952093f8 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -943,6 +943,7 @@ static void __init_discard_policy(struct f2fs_sb_info *sbi,
 	} else if (discard_type == DPOLICY_FSTRIM) {
 		dpolicy->io_aware = false;
 	} else if (discard_type == DPOLICY_UMOUNT) {
+		dpolicy->max_requests = UINT_MAX;
 		dpolicy->io_aware = false;
 	}
 }