try_to_free_nats() is usually called with parameter nr_shrink as
"nm_i->nat_cnt - NM_WOUT_THRESHOLD"
by flush_nat_entries() during checkpointing process.
However, this is inconsistent with the actual threshold check as
"if (nm_i->nat_cnt < 2 * NM_WOUT_THRESHOLD)"
, which will ignore the free_nats requests when
NM_WOUT_THRESHOLD < nm_i->nat_cnt < 2 * NM_WOUT_THRESHOLD
So fix the threshold check condition.
Signed-off-by: Haicheng Li <haicheng...@linux.intel.com>
---
fs/f2fs/node.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c
index e275218..2a73526 100644
--- a/fs/f2fs/node.c
+++ b/fs/f2fs/node.c
@@ -236,7 +236,7 @@ static int try_to_free_nats(struct f2fs_sb_info *sbi, int
nr_shrink)
{
struct f2fs_nm_info *nm_i = NM_I(sbi);
- if (nm_i->nat_cnt < 2 * NM_WOUT_THRESHOLD)
+ if (nm_i->nat_cnt <= NM_WOUT_THRESHOLD)
return 0;
write_lock(&nm_i->nat_tree_lock);
--
1.7.9.5
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