Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / fs / hfs / sysdep.c

diff --git a/kernel/fs/hfs/sysdep.c b/kernel/fs/hfs/sysdep.c
new file mode 100644 (file)
index 0000000..2875961
--- /dev/null
+++ b/kernel/fs/hfs/sysdep.c
@@ -0,0 +1,45 @@
+/*
+ *  linux/fs/hfs/sysdep.c
+ *
+ * Copyright (C) 1996  Paul H. Hargrove
+ * (C) 2003 Ardis Technologies <roman@ardistech.com>
+ * This file may be distributed under the terms of the GNU General Public License.
+ *
+ * This file contains the code to do various system dependent things.
+ */
+
+#include <linux/namei.h>
+#include "hfs_fs.h"
+
+/* dentry case-handling: just lowercase everything */
+
+static int hfs_revalidate_dentry(struct dentry *dentry, unsigned int flags)
+{
+       struct inode *inode;
+       int diff;
+
+       if (flags & LOOKUP_RCU)
+               return -ECHILD;
+
+       inode = d_inode(dentry);
+       if(!inode)
+               return 1;
+
+       /* fix up inode on a timezone change */
+       diff = sys_tz.tz_minuteswest * 60 - HFS_I(inode)->tz_secondswest;
+       if (diff) {
+               inode->i_ctime.tv_sec += diff;
+               inode->i_atime.tv_sec += diff;
+               inode->i_mtime.tv_sec += diff;
+               HFS_I(inode)->tz_secondswest += diff;
+       }
+       return 1;
+}
+
+const struct dentry_operations hfs_dentry_operations =
+{
+       .d_revalidate   = hfs_revalidate_dentry,
+       .d_hash         = hfs_hash_dentry,
+       .d_compare      = hfs_compare_dentry,
+};
+