1 files changed, 30 insertions, 31 deletions

diff --git a/fs/ncpfs/mmap.c b/fs/ncpfs/mmap.c
index 52d60c3d899..b359d12eb35 100644
--- a/fs/ncpfs/mmap.c
+++ b/fs/ncpfs/mmap.c
@@ -9,47 +9,47 @@
 #include <linux/stat.h>
 #include <linux/time.h>
 #include <linux/kernel.h>
+#include <linux/gfp.h>
 #include <linux/mm.h>
 #include <linux/shm.h>
 #include <linux/errno.h>
 #include <linux/mman.h>
 #include <linux/string.h>
-#include <linux/slab.h>
 #include <linux/fcntl.h>
-#include <linux/ncp_fs.h>
+#include <linux/memcontrol.h>
 
-#include "ncplib_kernel.h"
 #include <asm/uaccess.h>
-#include <asm/system.h>
+
+#include "ncp_fs.h"
 
 /*
  * Fill in the supplied page for mmap
+ * XXX: how are we excluding truncate/invalidate here? Maybe need to lock
+ * page?
  */
-static struct page* ncp_file_mmap_nopage(struct vm_area_struct *area,
-				     unsigned long address, int *type)
+static int ncp_file_mmap_fault(struct vm_area_struct *area,
+					struct vm_fault *vmf)
 {
 	struct file *file = area->vm_file;
-	struct dentry *dentry = file->f_dentry;
+	struct dentry *dentry = file->f_path.dentry;
 	struct inode *inode = dentry->d_inode;
-	struct page* page;
 	char *pg_addr;
 	unsigned int already_read;
 	unsigned int count;
 	int bufsize;
-	int pos;
+	int pos; /* XXX: loff_t ? */
 
-	page = alloc_page(GFP_HIGHUSER); /* ncpfs has nothing against high pages
-	           as long as recvmsg and memset works on it */
-	if (!page)
-		return page;
-	pg_addr = kmap(page);
-	address &= PAGE_MASK;
-	pos = address - area->vm_start + (area->vm_pgoff << PAGE_SHIFT);
+	/*
+	 * ncpfs has nothing against high pages as long
+	 * as recvmsg and memset works on it
+	 */
+	vmf->page = alloc_page(GFP_HIGHUSER);
+	if (!vmf->page)
+		return VM_FAULT_OOM;
+	pg_addr = kmap(vmf->page);
+	pos = vmf->pgoff << PAGE_SHIFT;
 
 	count = PAGE_SIZE;
-	if (address + PAGE_SIZE > area->vm_end) {
-		count = area->vm_end - address;
-	}
 	/* what we can read in one go */
 	bufsize = NCP_SERVER(inode)->buffer_size;
 
@@ -83,32 +83,31 @@ static struct page* ncp_file_mmap_nopage(struct vm_area_struct *area,
 
 	if (already_read < PAGE_SIZE)
 		memset(pg_addr + already_read, 0, PAGE_SIZE - already_read);
-	flush_dcache_page(page);
-	kunmap(page);
+	flush_dcache_page(vmf->page);
+	kunmap(vmf->page);
 
 	/*
 	 * If I understand ncp_read_kernel() properly, the above always
 	 * fetches from the network, here the analogue of disk.
-	 * -- wli
+	 * -- nyc
 	 */
-	if (type)
-		*type = VM_FAULT_MAJOR;
-	inc_page_state(pgmajfault);
-	return page;
+	count_vm_event(PGMAJFAULT);
+	mem_cgroup_count_vm_event(area->vm_mm, PGMAJFAULT);
+	return VM_FAULT_MAJOR;
 }
 
-static struct vm_operations_struct ncp_file_mmap =
+static const struct vm_operations_struct ncp_file_mmap =
 {
-	.nopage	= ncp_file_mmap_nopage,
+	.fault = ncp_file_mmap_fault,
 };
 
 
 /* This is used for a general mmap of a ncp file */
 int ncp_mmap(struct file *file, struct vm_area_struct *vma)
 {
-	struct inode *inode = file->f_dentry->d_inode;
+	struct inode *inode = file_inode(file);
 	
-	DPRINTK("ncp_mmap: called\n");
+	ncp_dbg(1, "called\n");
 
 	if (!ncp_conn_valid(NCP_SERVER(inode)))
 		return -EIO;
@@ -118,7 +117,7 @@ int ncp_mmap(struct file *file, struct vm_area_struct *vma)
 		return -EINVAL;
 	/* we do not support files bigger than 4GB... We eventually 
 	   supports just 4GB... */
-	if (((vma->vm_end - vma->vm_start) >> PAGE_SHIFT) + vma->vm_pgoff 
+	if (vma_pages(vma) + vma->vm_pgoff
 	   > (1U << (32 - PAGE_SHIFT)))
 		return -EFBIG;