f2fs: fix to issue small discard in real-time mode discard
Now in f2fs, we share functions and structures for batch mode and real-time mode
discard. For real-time mode discard, in shared function add_discard_addrs, we
will use uninitialized trim_minlen in struct cp_control to compare with length
of contiguous free blocks to decide whether skipping discard fragmented freespace
or not, this makes us ignore small discard sometimes. Fix it.
Signed-off-by: Chao Yu <chao2.yu@samsung.com>
Reviewed-by : Changman Lee <cm224.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 1e90934..3e80bd6 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -552,7 +552,7 @@
end = __find_rev_next_zero_bit(dmap, max_blocks, start + 1);
- if (end - start < cpc->trim_minlen)
+ if (force && end - start < cpc->trim_minlen)
continue;
__add_discard_entry(sbi, cpc, start, end);