Pull ia64-clocksource into release branch

[pandora-kernel.git] / fs / gfs2 / ops_file.c

diff --git a/fs/gfs2/ops_file.c b/fs/gfs2/ops_file.c
index 550032c..1a5e8e8 100644 (file)
--- a/fs/gfs2/ops_file.c
+++ b/fs/gfs2/ops_file.c
@@ -488,6 +488,29 @@ static int gfs2_fsync(struct file *file, struct dentry *dentry, int datasync)
        return ret;
 }
 
+/**
+ * gfs2_setlease - acquire/release a file lease
+ * @file: the file pointer
+ * @arg: lease type
+ * @fl: file lock
+ *
+ * Returns: errno
+ */
+
+static int gfs2_setlease(struct file *file, long arg, struct file_lock **fl)
+{
+       struct gfs2_sbd *sdp = GFS2_SB(file->f_mapping->host);
+
+       /*
+        * We don't currently have a way to enforce a lease across the whole
+        * cluster; until we do, disable leases (by just returning -EINVAL),
+        * unless the administrator has requested purely local locking.
+        */
+       if (!sdp->sd_args.ar_localflocks)
+               return -EINVAL;
+       return setlease(file, arg, fl);
+}
+
 /**
  * gfs2_lock - acquire/release a posix lock on a file
  * @file: the file pointer
@@ -635,10 +658,10 @@ const struct file_operations gfs2_file_fops = {
        .release        = gfs2_close,
        .fsync          = gfs2_fsync,
        .lock           = gfs2_lock,
-       .sendfile       = generic_file_sendfile,
        .flock          = gfs2_flock,
        .splice_read    = generic_file_splice_read,
        .splice_write   = generic_file_splice_write,
+       .setlease       = gfs2_setlease,
 };
 
 const struct file_operations gfs2_dir_fops = {