Messages in this thread Patch in this message | | | From | Haicheng Li <> | Subject | [PATCH 1/2] f2fs: fix inconsistent using of NM_WOUT_THRESHOLD | Date | Sun, 28 Apr 2013 19:16:06 +0800 |
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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.li@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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