f2fs: add remap_pages as generic_file_remap_pages
authorJaegeuk Kim <jaegeuk.kim@samsung.com>
Thu, 17 Jan 2013 09:37:41 +0000 (18:37 +0900)
committerJaegeuk Kim <jaegeuk.kim@samsung.com>
Tue, 22 Jan 2013 01:48:58 +0000 (10:48 +0900)
This was added for all the file systems before.

See the following commit.

commit id: 0b173bc4daa8f8ec03a85abf5e47b23502ff80af

[PATCH] mm: kill vma flag VM_CAN_NONLINEAR

This patch moves actual ptes filling for non-linear file mappings
into special vma operation: ->remap_pages().

File system must implement this method to get non-linear mappings support,
if it uses filemap_fault() then generic_file_remap_pages() can be used.

Now device drivers can implement this method and obtain nonlinear vma support."

Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
fs/f2fs/file.c

index 819de7f..3191b52 100644 (file)
@@ -96,8 +96,9 @@ out:
 }
 
 static const struct vm_operations_struct f2fs_file_vm_ops = {
-       .fault        = filemap_fault,
-       .page_mkwrite = f2fs_vm_page_mkwrite,
+       .fault          = filemap_fault,
+       .page_mkwrite   = f2fs_vm_page_mkwrite,
+       .remap_pages    = generic_file_remap_pages,
 };
 
 static int need_to_sync_dir(struct f2fs_sb_info *sbi, struct inode *inode)