When nm_i->fcnt > 2 * MAX_FREE_NIDS, stop scanning other NAT entries.
Signed-off-by: Haicheng Li <haicheng...@linux.intel.com>
---
fs/f2fs/node.c | 13 +++++++++----
1 file changed, 9 insertions(+), 4 deletions(-)
diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c
index 1b45dd0..1fe3fe2 100644
--- a/fs/f2fs/node.c
+++ b/fs/f2fs/node.c
@@ -1254,7 +1254,7 @@ static int add_free_nid(struct f2fs_nm_info *nm_i, nid_t
nid)
struct free_nid *i;
if (nm_i->fcnt > 2 * MAX_FREE_NIDS)
- return 0;
+ return -1;
/* 0 nid should not be used */
if (nid == 0)
@@ -1302,12 +1302,17 @@ static void scan_nat_page(struct f2fs_nm_info *nm_i,
i = start_nid % NAT_ENTRY_PER_BLOCK;
for (; i < NAT_ENTRY_PER_BLOCK; i++, start_nid++) {
+ int cnt;
+
if (start_nid >= nm_i->max_nid)
break;
- blk_addr = le32_to_cpu(nat_blk->entries[i].block_addr);
+ blk_addr = le32_to_cpu(nat_blk->entries[i].block_addr);
BUG_ON(blk_addr == NEW_ADDR);
- if (blk_addr == NULL_ADDR)
- add_free_nid(nm_i, start_nid);
+ if (blk_addr == NULL_ADDR) {
+ cnt = add_free_nid(nm_i, start_nid);
+ if (cnt < 0)
+ break;
+ }
}
}
--
1.7.9.5
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