From b3a634a491da35d47a5e6e6120a21cba514fc3ec Mon Sep 17 00:00:00 2001
From: JackM
Date: Wed, 30 Sep 2015 23:16:40 +0300
Subject: [PATCH] vmhgfs support linux 4.2.x kernel

---
 modules/linux/vmhgfs/link.c | 30 +++++++++++++++++++++++++-----
 1 file changed, 25 insertions(+), 5 deletions(-)

diff --git a/open-vm-tools/modules/linux/vmhgfs/link.c b/open-vm-tools/modules/linux/vmhgfs/link.c
index 06f693b..72e97ff 100644
--- a/open-vm-tools/modules/linux/vmhgfs/link.c
+++ b/open-vm-tools/modules/linux/vmhgfs/link.c
@@ -35,7 +35,9 @@
 #include "vm_assert.h"
 
 /* HGFS symlink operations. */
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 13)
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 2, 0)
+static void *HgfsFollowlink(struct dentry *dentry, void **cookie, struct nameidata *nd);
+#elif LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 13)
 static void *HgfsFollowlink(struct dentry *dentry,
                             struct nameidata *nd);
 #else
@@ -45,7 +47,10 @@ static int HgfsFollowlink(struct dentry *dentry,
 static int HgfsReadlink(struct dentry *dentry,
                         char __user *buffer,
                         int buflen);
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 13)
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 2, 0)
+static void HgfsPutlink(struct dentry *dentry,
+                        void *cookie);
+#elif LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 13)
 static void HgfsPutlink(struct dentry *dentry,
                         struct nameidata *nd,
                         void *cookie);
@@ -85,7 +90,9 @@ struct inode_operations HgfsLinkInodeOperations = {
  *----------------------------------------------------------------------
  */
 
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 13)
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 2, 0)
+static void *HgfsFollowlink(struct dentry *dentry, void **cookie, struct nameidata *nd)
+#elif LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 13)
 static void *
 HgfsFollowlink(struct dentry *dentry, // IN: Dentry containing link
                struct nameidata *nd)  // OUT: Contains target dentry
@@ -124,7 +131,11 @@ HgfsFollowlink(struct dentry *dentry, // IN: Dentry containing link
       } else {
          LOG(6, (KERN_DEBUG "VMware hgfs: %s: calling nd_set_link %s\n",
                  __func__, fileName));
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 2, 0)
+        *cookie = fileName;
+#else
          nd_set_link(nd, fileName);
+#endif
       }
    }
   out:
@@ -219,7 +230,10 @@ HgfsReadlink(struct dentry *dentry,  // IN:  Dentry containing link
  *----------------------------------------------------------------------
  */
 
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 13)
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 2, 0)
+static void HgfsPutlink(struct dentry *dentry,
+                        void *cookie)
+#elif LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 13)
 static void
 HgfsPutlink(struct dentry *dentry, // dentry
             struct nameidata *nd,  // lookup name information
@@ -235,11 +249,17 @@ HgfsPutlink(struct dentry *dentry, // dentry
    LOG(6, (KERN_DEBUG "VMware hgfs: %s: put for %s\n",
            __func__, dentry->d_name.name));
 
-   fileName = nd_get_link(nd);
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 2, 0)
+    fileName = cookie;
+#else
+    fileName = nd_get_link(nd);
+#endif
    if (!IS_ERR(fileName)) {
       LOG(6, (KERN_DEBUG "VMware hgfs: %s: putting %s\n",
               __func__, fileName));
       kfree(fileName);
+#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 2, 0)
       nd_set_link(nd, NULL);
+#endif
    }
 }
-- 
2.5.0.windows.1