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-rw-r--r--fs/f2fs/segment.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index de9c0700c88e..335418c9a06b 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -525,7 +525,8 @@ static void add_discard_addrs(struct f2fs_sb_info *sbi, struct cp_control *cpc)
bool force = (cpc->reason == CP_DISCARD);
int i;
- if (!force && !test_opt(sbi, DISCARD))
+ if (!force && (!test_opt(sbi, DISCARD) ||
+ SM_I(sbi)->nr_discards >= SM_I(sbi)->max_discards))
return;
if (force && !se->valid_blocks) {
@@ -553,7 +554,8 @@ 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]);
+ dmap[i] = force ? ~ckpt_map[i] :
+ (cur_map[i] ^ ckpt_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);
@@ -1759,7 +1761,7 @@ void flush_sit_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc)
se = get_seg_entry(sbi, segno);
/* add discard candidates */
- if (SM_I(sbi)->nr_discards < SM_I(sbi)->max_discards) {
+ if (cpc->reason != CP_DISCARD) {
cpc->trim_start = segno;
add_discard_addrs(sbi, cpc);
}