From 1b38dc8e74a366b92986755c304591e330f3c3e0 Mon Sep 17 00:00:00 2001 From: Jaegeuk Kim Date: Fri, 19 Jun 2015 15:36:07 -0700 Subject: f2fs: shrink nat_cache entries This patch registers shrinking nat_cache entries. Reviewed-by: Chao Yu Signed-off-by: Jaegeuk Kim --- fs/f2fs/node.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'fs/f2fs/node.c') diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c index 7dd63b794bfb..a05eb35a372c 100644 --- a/fs/f2fs/node.c +++ b/fs/f2fs/node.c @@ -328,11 +328,11 @@ static void set_node_addr(struct f2fs_sb_info *sbi, struct node_info *ni, int try_to_free_nats(struct f2fs_sb_info *sbi, int nr_shrink) { struct f2fs_nm_info *nm_i = NM_I(sbi); + int nr = nr_shrink; - if (available_free_memory(sbi, NAT_ENTRIES)) + if (!down_write_trylock(&nm_i->nat_tree_lock)) return 0; - down_write(&nm_i->nat_tree_lock); while (nr_shrink && !list_empty(&nm_i->nat_entries)) { struct nat_entry *ne; ne = list_first_entry(&nm_i->nat_entries, @@ -341,7 +341,7 @@ int try_to_free_nats(struct f2fs_sb_info *sbi, int nr_shrink) nr_shrink--; } up_write(&nm_i->nat_tree_lock); - return nr_shrink; + return nr - nr_shrink; } /* -- cgit