Changes page->mapping handling in NTFS

Signed-off-by: KAMEZAWA Hiroyuki <[EMAIL PROTECTED]>

---
 fs/ntfs/aops.c     |   14 +++++++-------
 fs/ntfs/compress.c |    2 +-
 fs/ntfs/file.c     |    6 +++---
 3 files changed, 11 insertions(+), 11 deletions(-)

Index: test-2.6.23-rc4-mm1/fs/ntfs/aops.c
===================================================================
--- test-2.6.23-rc4-mm1.orig/fs/ntfs/aops.c
+++ test-2.6.23-rc4-mm1/fs/ntfs/aops.c
@@ -65,7 +65,7 @@ static void ntfs_end_buffer_async_read(s
        int page_uptodate = 1;
 
        page = bh->b_page;
-       vi = page->mapping->host;
+       vi = page_inode(page);
        ni = NTFS_I(vi);
 
        if (likely(uptodate)) {
@@ -194,7 +194,7 @@ static int ntfs_read_block(struct page *
        int i, nr;
        unsigned char blocksize_bits;
 
-       vi = page->mapping->host;
+       vi = page_inode(page);
        ni = NTFS_I(vi);
        vol = ni->vol;
 
@@ -413,7 +413,7 @@ retry_readpage:
                unlock_page(page);
                return 0;
        }
-       vi = page->mapping->host;
+       vi = page_inode(page);
        ni = NTFS_I(vi);
        /*
         * Only $DATA attributes can be encrypted and only unnamed $DATA
@@ -553,7 +553,7 @@ static int ntfs_write_block(struct page 
        bool need_end_writeback;
        unsigned char blocksize_bits;
 
-       vi = page->mapping->host;
+       vi = page_inode(page);
        ni = NTFS_I(vi);
        vol = ni->vol;
 
@@ -909,7 +909,7 @@ static int ntfs_write_mst_block(struct p
                struct writeback_control *wbc)
 {
        sector_t block, dblock, rec_block;
-       struct inode *vi = page->mapping->host;
+       struct inode *vi = page_inode(page);
        ntfs_inode *ni = NTFS_I(vi);
        ntfs_volume *vol = ni->vol;
        u8 *kaddr;
@@ -1342,7 +1342,7 @@ done:
 static int ntfs_writepage(struct page *page, struct writeback_control *wbc)
 {
        loff_t i_size;
-       struct inode *vi = page->mapping->host;
+       struct inode *vi = page_inode(page);
        ntfs_inode *base_ni = NULL, *ni = NTFS_I(vi);
        char *kaddr;
        ntfs_attr_search_ctx *ctx = NULL;
@@ -1579,7 +1579,7 @@ const struct address_space_operations nt
  * need the lock since try_to_free_buffers() does not free dirty buffers.
  */
 void mark_ntfs_record_dirty(struct page *page, const unsigned int ofs) {
-       struct address_space *mapping = page->mapping;
+       struct address_space *mapping = page_mapping_cache(page);
        ntfs_inode *ni = NTFS_I(mapping->host);
        struct buffer_head *bh, *head, *buffers_to_free = NULL;
        unsigned int end, bh_size, bh_ofs;
Index: test-2.6.23-rc4-mm1/fs/ntfs/compress.c
===================================================================
--- test-2.6.23-rc4-mm1.orig/fs/ntfs/compress.c
+++ test-2.6.23-rc4-mm1/fs/ntfs/compress.c
@@ -482,7 +482,7 @@ int ntfs_read_compressed_block(struct pa
 {
        loff_t i_size;
        s64 initialized_size;
-       struct address_space *mapping = page->mapping;
+       struct address_space *mapping = page_mapping_cache(page);
        ntfs_inode *ni = NTFS_I(mapping->host);
        ntfs_volume *vol = ni->vol;
        struct super_block *sb = vol->sb;
Index: test-2.6.23-rc4-mm1/fs/ntfs/file.c
===================================================================
--- test-2.6.23-rc4-mm1.orig/fs/ntfs/file.c
+++ test-2.6.23-rc4-mm1/fs/ntfs/file.c
@@ -520,7 +520,7 @@ static int ntfs_prepare_pages_for_non_re
        BUG_ON(!nr_pages);
        BUG_ON(!pages);
        BUG_ON(!*pages);
-       vi = pages[0]->mapping->host;
+       vi = page_inode(pages[0]);
        ni = NTFS_I(vi);
        vol = ni->vol;
        ntfs_debug("Entering for inode 0x%lx, attribute type 0x%x, start page "
@@ -1494,7 +1494,7 @@ static inline int ntfs_commit_pages_afte
        unsigned blocksize, u;
        int err;
 
-       vi = pages[0]->mapping->host;
+       vi = page_inode(pages[0]);
        ni = NTFS_I(vi);
        blocksize = vi->i_sb->s_blocksize;
        end = pos + bytes;
@@ -1654,7 +1654,7 @@ static int ntfs_commit_pages_after_write
        BUG_ON(!pages);
        page = pages[0];
        BUG_ON(!page);
-       vi = page->mapping->host;
+       vi = page_inode(page);
        ni = NTFS_I(vi);
        ntfs_debug("Entering for inode 0x%lx, attribute type 0x%x, start page "
                        "index 0x%lx, nr_pages 0x%x, pos 0x%llx, bytes 0x%zx.",

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