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f2fs: try to keep CP_TRIMMED_FLAG after successful umount
author
Jaegeuk Kim
<jaegeuk@kernel.org>
Fri, 25 Jan 2019 17:12:13 +0000
(09:12 -0800)
committer
Jaegeuk Kim
<jaegeuk@kernel.org>
Sat, 16 Feb 2019 04:59:45 +0000
(20:59 -0800)
If every discard were issued successfully, we can avoid further discard.
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
fs/f2fs/segment.c
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diff --git
a/fs/f2fs/segment.c
b/fs/f2fs/segment.c
index 342b720fb4db2a4cc07476f22b48d6ea0dcfea4b..fdd8cd21522f4d51f9f9053bfdc05a81bfd72fe7 100644
(file)
--- 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;
}
}