f2fs: fix to return exact trimmed size
Now, we add all the candidates for trim commands and then finally issue
discard commands.
So, we should count the trimmed size in back-end.
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 46283a1..1eb3437 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -544,7 +544,6 @@
list_add_tail(&new->list, head);
done:
SM_I(sbi)->nr_discards += end - start;
- cpc->trimmed += end - start;
}
static void add_discard_addrs(struct f2fs_sb_info *sbi, struct cp_control *cpc)
@@ -646,6 +645,7 @@
if (cpc->reason == CP_DISCARD && entry->len < cpc->trim_minlen)
goto skip;
f2fs_issue_discard(sbi, entry->blkaddr, entry->len);
+ cpc->trimmed += entry->len;
skip:
list_del(&entry->list);
SM_I(sbi)->nr_discards -= entry->len;