Merge branch 'for-usb-linus' of git.kernel.org/pub/scm/linux/kernel/git/sarah/xhci...

[karo-tx-linux.git] / fs / cifs / misc.c

diff --git a/fs/cifs/misc.c b/fs/cifs/misc.c
index 4a1801b3195f3c0e24df249684cd5bd013c93900..703ef5c6fdb1e5716f63fe2d01cddce92c15f7af 100644 (file)
--- a/fs/cifs/misc.c
+++ b/fs/cifs/misc.c
@@ -675,3 +675,18 @@ void cifs_set_oplock_level(struct cifsInodeInfo *cinode, __u32 oplock)
                cinode->clientCanCacheRead = false;
        }
 }
+
+bool
+backup_cred(struct cifs_sb_info *cifs_sb)
+{
+       if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_CIFS_BACKUPUID) {
+               if (cifs_sb->mnt_backupuid == current_fsuid())
+                       return true;
+       }
+       if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_CIFS_BACKUPGID) {
+               if (in_group_p(cifs_sb->mnt_backupgid))
+                       return true;
+       }
+
+       return false;
+}