Messages in this thread Patch in this message | | | From | Jaegeuk Kim <> | Subject | [PATCH 3/4] f2fs: do not discard data protected by the previous checkpoint | Date | Tue, 28 Oct 2014 22:05:52 -0700 |
| |
We should not discard any data protected by the previous checkpoint all the time.
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org> --- fs/f2fs/segment.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c index d391a59..06dda73 100644 --- a/fs/f2fs/segment.c +++ b/fs/f2fs/segment.c @@ -517,7 +517,7 @@ static void add_discard_addrs(struct f2fs_sb_info *sbi, struct cp_control *cpc) /* SIT_VBLOCK_MAP_SIZE should be multiple of sizeof(unsigned long) */ for (i = 0; i < entries; i++) - dmap[i] = (cur_map[i] ^ ckpt_map[i]) & ckpt_map[i]; + dmap[i] = ~(cur_map[i] | ckpt_map[i]); while (force || SM_I(sbi)->nr_discards <= SM_I(sbi)->max_discards) { start = __find_rev_next_bit(dmap, max_blocks, end + 1); -- 2.1.1
| |