From 102a0743326a03cd1a1202ceda21e175b7d3575c Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 20 Feb 2024 01:20:52 +0000
Subject: [PATCH] add new system file
---
kernel/fs/reiserfs/xattr.c | 9 +++++++++
1 files changed, 9 insertions(+), 0 deletions(-)
diff --git a/kernel/fs/reiserfs/xattr.c b/kernel/fs/reiserfs/xattr.c
index 0a397f1..fe63a7c 100644
--- a/kernel/fs/reiserfs/xattr.c
+++ b/kernel/fs/reiserfs/xattr.c
@@ -454,6 +454,15 @@
static inline __u32 xattr_hash(const char *msg, int len)
{
+ /*
+ * csum_partial() gives different results for little-endian and
+ * big endian hosts. Images created on little-endian hosts and
+ * mounted on big-endian hosts(and vice versa) will see csum mismatches
+ * when trying to fetch xattrs. Treating the hash as __wsum_t would
+ * lower the frequency of mismatch. This is an endianness bug in
+ * reiserfs. The return statement would result in a sparse warning. Do
+ * not fix the sparse warning so as to not hide a reminder of the bug.
+ */
return csum_partial(msg, len, 0);
}
--
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