---

yaml
---
r: 128763
b: refs/heads/master
c: 12fa8ec
h: refs/heads/master
i:
  128761: 8cdd659
  128759: a9424ba
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: bb8885cc0aa6b1606143d92c70762b16026016a5
+refs/heads/master: 12fa8ec64f445aa932ba154053fe95432f30f2c6

trunk/fs/btrfs/compat.h

@@ -0,0 +1,25 @@
+#ifndef _COMPAT_H_
+#define _COMPAT_H_
+
+
+/*
+ * Even if AppArmor isn't enabled, it still has different prototypes.
+ * Add more distro/version pairs here to declare which has AppArmor applied.
+ */
+#if defined(CONFIG_SUSE_KERNEL)
+# if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,22)
+# define REMOVE_SUID_PATH 1
+# endif
+#endif
+
+/*
+ * catch any other distros that have patched in apparmor.  This isn't
+ * 100% reliable because it won't catch people that hand compile their
+ * own distro kernels without apparmor compiled in.  But, it is better
+ * than nothing.
+ */
+#ifdef CONFIG_SECURITY_APPARMOR
+# define REMOVE_SUID_PATH 1
+#endif
+
+#endif /* _COMPAT_H_ */

trunk/fs/btrfs/file.c

@@ -37,6 +37,7 @@
 #include "ordered-data.h"
 #include "ioctl.h"
 #include "print-tree.h"
+#include "compat.h"
 
 
 static int btrfs_copy_from_user(loff_t pos, int num_pages, int write_bytes,
@@ -852,7 +853,11 @@ static ssize_t btrfs_file_write(struct file *file, const char __user *buf,
 		goto out_nolock;
 	if (count == 0)
 		goto out_nolock;
+#ifdef REMOVE_SUID_PATH
+	err = remove_suid(&file->f_path);
+#else
 	err = remove_suid(fdentry(file));
+#endif
 	if (err)
 		goto out_nolock;
 	file_update_time(file);