2 files changed, 20 insertions, 19 deletions

diff --git a/fs/hfsplus/extents.c b/fs/hfsplus/extents.c
index 1a7480089e82..12e899cd7886 100644
--- a/fs/hfsplus/extents.c
+++ b/fs/hfsplus/extents.c
@@ -443,21 +443,18 @@ void hfsplus_file_truncate(struct inode *inode)
         if (inode->i_size > HFSPLUS_I(inode).phys_size) {
                 struct address_space *mapping = inode->i_mapping;
                 struct page *page;
-                u32 size = inode->i_size - 1;
+                void *fsdata;
+                u32 size = inode->i_size;
                 int res;
 
-                page = grab_cache_page(mapping, size >> PAGE_CACHE_SHIFT);
-                if (!page)
-                        return;
-                size &= PAGE_CACHE_SIZE - 1;
-                size++;
-                res = mapping->a_ops->prepare_write(NULL, page, size, size);
-                if (!res)
-                        res = mapping->a_ops->commit_write(NULL, page, size, size);
+                res = pagecache_write_begin(NULL, mapping, size, 0,
+                                                AOP_FLAG_UNINTERRUPTIBLE,
+                                                &page, &fsdata);
                 if (res)
-                        inode->i_size = HFSPLUS_I(inode).phys_size;
-                unlock_page(page);
-                page_cache_release(page);
+                        return;
+                res = pagecache_write_end(NULL, mapping, size, 0, 0, page, fsdata);
+                if (res < 0)
+                        return;
                 mark_inode_dirty(inode);
                 return;
         } else if (inode->i_size == HFSPLUS_I(inode).phys_size)
diff --git a/fs/hfsplus/inode.c b/fs/hfsplus/inode.c
index 6f7c662174db..37744cf3706a 100644
--- a/fs/hfsplus/inode.c
+++ b/fs/hfsplus/inode.c
@@ -27,10 +27,14 @@ static int hfsplus_writepage(struct page *page, struct writeback_control *wbc)
         return block_write_full_page(page, hfsplus_get_block, wbc);
 }
 
-static int hfsplus_prepare_write(struct file *file, struct page *page, unsigned from, unsigned to)
+static int hfsplus_write_begin(struct file *file, struct address_space *mapping,
+                        loff_t pos, unsigned len, unsigned flags,
+                        struct page **pagep, void **fsdata)
 {
-        return cont_prepare_write(page, from, to, hfsplus_get_block,
-                &HFSPLUS_I(page->mapping->host).phys_size);
+        *pagep = NULL;
+        return cont_write_begin(file, mapping, pos, len, flags, pagep, fsdata,
+                                hfsplus_get_block,
+                                &HFSPLUS_I(mapping->host).phys_size);
 }
 
 static sector_t hfsplus_bmap(struct address_space *mapping, sector_t block)
@@ -114,8 +118,8 @@ const struct address_space_operations hfsplus_btree_aops = {
         .readpage       = hfsplus_readpage,
         .writepage      = hfsplus_writepage,
         .sync_page      = block_sync_page,
-        .prepare_write  = hfsplus_prepare_write,
-        .commit_write   = generic_commit_write,
+        .write_begin    = hfsplus_write_begin,
+        .write_end      = generic_write_end,
         .bmap           = hfsplus_bmap,
         .releasepage    = hfsplus_releasepage,
 };
@@ -124,8 +128,8 @@ const struct address_space_operations hfsplus_aops = {
         .readpage       = hfsplus_readpage,
         .writepage      = hfsplus_writepage,
         .sync_page      = block_sync_page,
-        .prepare_write  = hfsplus_prepare_write,
-        .commit_write   = generic_commit_write,
+        .write_begin    = hfsplus_write_begin,
+        .write_end      = generic_write_end,
         .bmap           = hfsplus_bmap,
         .direct_IO      = hfsplus_direct_IO,
         .writepages     = hfsplus_writepages,