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authorKirill A. Shutemov <kirill.shutemov@linux.intel.com>2014-04-07 15:37:19 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2014-04-07 16:35:53 -0700
commitf1820361f83d556a7f0a9f629100f3825e594328 (patch)
tree1fc18989613d72ef115b355864786dd934b4d317 /fs/9p
parent8c6e50b0290c4c708a3e6462729e1e9151a9a7df (diff)
downloadop-kernel-dev-f1820361f83d556a7f0a9f629100f3825e594328.zip
op-kernel-dev-f1820361f83d556a7f0a9f629100f3825e594328.tar.gz
mm: implement ->map_pages for page cache
filemap_map_pages() is generic implementation of ->map_pages() for filesystems who uses page cache. It should be safe to use filemap_map_pages() for ->map_pages() if filesystem use filemap_fault() for ->fault(). Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mel Gorman <mgorman@suse.de> Cc: Rik van Riel <riel@redhat.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Matthew Wilcox <matthew.r.wilcox@intel.com> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: Alexander Viro <viro@zeniv.linux.org.uk> Cc: Dave Chinner <david@fromorbit.com> Cc: Ning Qu <quning@gmail.com> Cc: Hugh Dickins <hughd@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/9p')
-rw-r--r--fs/9p/vfs_file.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/9p/vfs_file.c b/fs/9p/vfs_file.c
index a16b0ff..d822320 100644
--- a/fs/9p/vfs_file.c
+++ b/fs/9p/vfs_file.c
@@ -832,6 +832,7 @@ static void v9fs_mmap_vm_close(struct vm_area_struct *vma)
static const struct vm_operations_struct v9fs_file_vm_ops = {
.fault = filemap_fault,
+ .map_pages = filemap_map_pages,
.page_mkwrite = v9fs_vm_page_mkwrite,
.remap_pages = generic_file_remap_pages,
};
@@ -839,6 +840,7 @@ static const struct vm_operations_struct v9fs_file_vm_ops = {
static const struct vm_operations_struct v9fs_mmap_file_vm_ops = {
.close = v9fs_mmap_vm_close,
.fault = filemap_fault,
+ .map_pages = filemap_map_pages,
.page_mkwrite = v9fs_vm_page_mkwrite,
.remap_pages = generic_file_remap_pages,
};
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