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Commit e3fb1b79 authored by Jaegeuk Kim's avatar Jaegeuk Kim
Browse files

f2fs: do not discard data protected by the previous checkpoint 



We should not discard any data protected by the previous checkpoint all
the time.

Signed-off-by: default avatarJaegeuk Kim <jaegeuk@kernel.org>
parent 427a45c8

fs/f2fs/segment.c

+1 −1
Original line number Original line Diff line number Diff line
@@ -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) */

	/* SIT_VBLOCK_MAP_SIZE should be multiple of sizeof(unsigned long) */

	for (i = 0; i < entries; i++)

	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) {

	while (force || SM_I(sbi)->nr_discards <= SM_I(sbi)->max_discards) {

		start = __find_rev_next_bit(dmap, max_blocks, end + 1);

		start = __find_rev_next_bit(dmap, max_blocks, end + 1);