Change page->mapping handling in ext2

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

---
 fs/ext2/dir.c |   20 ++++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)

Index: test-2.6.23-rc4-mm1/fs/ext2/dir.c
===================================================================
--- test-2.6.23-rc4-mm1.orig/fs/ext2/dir.c
+++ test-2.6.23-rc4-mm1/fs/ext2/dir.c
@@ -65,7 +65,7 @@ ext2_last_byte(struct inode *inode, unsi
 
 static int ext2_commit_chunk(struct page *page, loff_t pos, unsigned len)
 {
-       struct address_space *mapping = page->mapping;
+       struct address_space *mapping = page_mapping_cache(page);
        struct inode *dir = mapping->host;
        int err = 0;
 
@@ -87,7 +87,7 @@ static int ext2_commit_chunk(struct page
 
 static void ext2_check_page(struct page *page)
 {
-       struct inode *dir = page->mapping->host;
+       struct inode *dir = page_inode(page);
        struct super_block *sb = dir->i_sb;
        unsigned chunk_size = ext2_chunk_size(dir);
        char *kaddr = page_address(page);
@@ -429,7 +429,7 @@ void ext2_set_link(struct inode *dir, st
        int err;
 
        lock_page(page);
-       err = __ext2_write_begin(NULL, page->mapping, pos, len,
+       err = __ext2_write_begin(NULL, page_mapping_cache(page), pos, len,
                                AOP_FLAG_UNINTERRUPTIBLE, &page, NULL);
        BUG_ON(err);
        de->inode = cpu_to_le32(inode->i_ino);
@@ -512,8 +512,8 @@ int ext2_add_link (struct dentry *dentry
 got_it:
        pos = page_offset(page) +
                (char*)de - (char*)page_address(page);
-       err = __ext2_write_begin(NULL, page->mapping, pos, rec_len, 0,
-                                                       &page, NULL);
+       err = __ext2_write_begin(NULL, page_mapping_cache(page), pos, rec_len,
+                               0, &page, NULL);
        if (err)
                goto out_unlock;
        if (de->inode) {
@@ -546,7 +546,7 @@ out_unlock:
  */
 int ext2_delete_entry (struct ext2_dir_entry_2 * dir, struct page * page )
 {
-       struct address_space *mapping = page->mapping;
+       struct address_space *mapping = page_mapping_cache(page);
        struct inode *inode = mapping->host;
        char *kaddr = page_address(page);
        unsigned from = ((char*)dir - kaddr) & ~(ext2_chunk_size(inode)-1);
@@ -570,8 +570,8 @@ int ext2_delete_entry (struct ext2_dir_e
                from = (char*)pde - (char*)page_address(page);
        pos = page_offset(page) + from;
        lock_page(page);
-       err = __ext2_write_begin(NULL, page->mapping, pos, to - from, 0,
-                                                       &page, NULL);
+       err = __ext2_write_begin(NULL, page_mapping_cache(page), pos,
+                               to - from, 0, &page, NULL);
        BUG_ON(err);
        if (pde)
                pde->rec_len = cpu_to_le16(to - from);
@@ -600,8 +600,8 @@ int ext2_make_empty(struct inode *inode,
        if (!page)
                return -ENOMEM;
 
-       err = __ext2_write_begin(NULL, page->mapping, 0, chunk_size, 0,
-                                                       &page, NULL);
+       err = __ext2_write_begin(NULL, page_mapping_cache(page), 0, chunk_size,
+                                       0, &page, NULL);
        if (err) {
                unlock_page(page);
                goto fail;

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