From: Kent Overstreet <kent.overstreet@linux.dev>
Date: Wed, 4 Jan 2023 05:00:55 +0000 (-0500)
Subject: bcachefs: Check for lru entries with time=0
X-Git-Tag: io_uring-6.7-2023-11-10~119^2~590
X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=9fea089a9502784f42868b2649a732724f4c1d0b;p=linux-block.git

bcachefs: Check for lru entries with time=0

These are invalid.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
---

diff --git a/fs/bcachefs/lru.c b/fs/bcachefs/lru.c
index e16686b3b45a..9b4ce27d12f3 100644
--- a/fs/bcachefs/lru.c
+++ b/fs/bcachefs/lru.c
@@ -19,6 +19,12 @@ int bch2_lru_invalid(const struct bch_fs *c, struct bkey_s_c k,
 		return -BCH_ERR_invalid_bkey;
 	}
 
+	if (!k.k->p.offset) {
+		prt_printf(err, "lru entry at time=0");
+		return -BCH_ERR_invalid_bkey;
+
+	}
+
 	return 0;
 }