f2fs: avoid infinite loop in f2fs_alloc_nid
If we have an error in f2fs_build_free_nids, we're able to fall into a loop
to find free nids.
Suggested-by: Chao Yu <[email protected]>
Reviewed-by: Chao Yu <[email protected]>
Signed-off-by: Jaegeuk Kim <[email protected]>
diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c
index fa2381c..d62f530 100644
--- a/fs/f2fs/node.c
+++ b/fs/f2fs/node.c
@@ -2350,8 +2350,9 @@ bool f2fs_alloc_nid(struct f2fs_sb_info *sbi, nid_t *nid)
spin_unlock(&nm_i->nid_list_lock);
/* Let's scan nat pages and its caches to get free nids */
- f2fs_build_free_nids(sbi, true, false);
- goto retry;
+ if (!f2fs_build_free_nids(sbi, true, false))
+ goto retry;
+ return false;
}
/*
