[PATCH v18 44/71] ceph: update WARN_ON message to pr_warn

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From: Jeff Layton <jlayton@xxxxxxxxxx>

Give some more helpful info

Tested-by: Luís Henriques <lhenriques@xxxxxxx>
Tested-by: Venky Shankar <vshankar@xxxxxxxxxx>
Reviewed-by: Luís Henriques <lhenriques@xxxxxxx>
Reviewed-by: Xiubo Li <xiubli@xxxxxxxxxx>
Signed-off-by: Jeff Layton <jlayton@xxxxxxxxxx>
---
 fs/ceph/caps.c | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/fs/ceph/caps.c b/fs/ceph/caps.c
index a0601a00b9d3..10e69857f692 100644
--- a/fs/ceph/caps.c
+++ b/fs/ceph/caps.c
@@ -3478,10 +3478,13 @@ static void handle_cap_grant(struct inode *inode,
 		dout("%p mode 0%o uid.gid %d.%d\n", inode, inode->i_mode,
 		     from_kuid(&init_user_ns, inode->i_uid),
 		     from_kgid(&init_user_ns, inode->i_gid));
-
-		WARN_ON_ONCE(ci->fscrypt_auth_len != extra_info->fscrypt_auth_len ||
-			     memcmp(ci->fscrypt_auth, extra_info->fscrypt_auth,
-				     ci->fscrypt_auth_len));
+#if IS_ENABLED(CONFIG_FS_ENCRYPTION)
+		if (ci->fscrypt_auth_len != extra_info->fscrypt_auth_len ||
+		    memcmp(ci->fscrypt_auth, extra_info->fscrypt_auth,
+			   ci->fscrypt_auth_len))
+			pr_warn_ratelimited("%s: cap grant attempt to change fscrypt_auth on non-I_NEW inode (old len %d new len %d)\n",
+				__func__, ci->fscrypt_auth_len, extra_info->fscrypt_auth_len);
+#endif
 	}
 
 	if ((newcaps & CEPH_CAP_LINK_SHARED) &&
-- 
2.39.2




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