f2fs: don't interrupt free nids building during nid allocation
Let build_free_nids support sync/async methods, in allocation flow of nids,
we use synchronuous method, so that we can avoid looping in alloc_nid when
free memory is low; in unblock_operations and f2fs_balance_fs_bg we use
asynchronuous method in where low memory condition can interrupt us.
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c
index 7db2aa2..654f5d7 100644
--- a/fs/f2fs/checkpoint.c
+++ b/fs/f2fs/checkpoint.c
@@ -987,7 +987,7 @@ static void unblock_operations(struct f2fs_sb_info *sbi)
{
up_write(&sbi->node_write);
- build_free_nids(sbi);
+ build_free_nids(sbi, false);
f2fs_unlock_all(sbi);
}