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f2fs: avoid mismatching block range for discard

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This patch skip discard block range smaller than trim_minlen,
and can not be merged by neighbour

Signed-off-by: Yunlei He <heyunlei@huawei.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Yunlei He 2016-07-07 12:13:33 +08:00 committed by Jaegeuk Kim
parent 7b1f5e7531
commit cd2822e19f
1 changed files with 4 additions and 0 deletions
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4
fs/f2fs/segment.c
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@ -731,6 +731,10 @@ static void add_discard_addrs(struct f2fs_sb_info *sbi, struct cp_control *cpc)
break;
end = __find_rev_next_zero_bit(dmap, max_blocks, start + 1);
if (force && start && end != max_blocks
&& (end - start) < cpc->trim_minlen)
continue;
__add_discard_entry(sbi, cpc, se, start, end);
}
}