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Commit 6cac3759 authored by Haicheng Li's avatar Haicheng Li Committed by Jaegeuk Kim
Browse files

f2fs: fix inconsistent using of NM_WOUT_THRESHOLD 



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: default avatarHaicheng Li <haicheng.li@linux.intel.com>
Signed-off-by: default avatarJaegeuk Kim <jaegeuk.kim@samsung.com>
parent afcb7ca0

fs/f2fs/node.c

+1 −1
Original line number Diff line number Diff line
@@ -244,7 +244,7 @@ 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);