f2fs_try_to_free_nats 2948 fs/f2fs/f2fs.h int f2fs_try_to_free_nats(struct f2fs_sb_info *sbi, int nr_shrink);
f2fs_try_to_free_nats  524 fs/f2fs/segment.c 		f2fs_try_to_free_nats(sbi, NAT_ENTRY_PER_BLOCK);
f2fs_try_to_free_nats  109 fs/f2fs/shrinker.c 			freed += f2fs_try_to_free_nats(sbi, nr - freed);