f2fs_try_to_free_nids 3073 fs/f2fs/f2fs.h int f2fs_try_to_free_nids(struct f2fs_sb_info *sbi, int nr_shrink);
f2fs_try_to_free_nids  527 fs/f2fs/segment.c 		f2fs_try_to_free_nids(sbi, MAX_FREE_NIDS);
f2fs_try_to_free_nids  113 fs/f2fs/shrinker.c 			freed += f2fs_try_to_free_nids(sbi, nr - freed);