vfs: remove get_xip_mem

[linux-drm-fsl-dcu.git] / fs / ext2 / xip.c

diff --git a/fs/ext2/xip.c b/fs/ext2/xip.c
index e98171a11cfe19ef92aef9c516bfd6c1fc42cad8..132d4daf98c46b98438cdd6495423fa4ab8faaaa 100644 (file)
--- a/fs/ext2/xip.c
+++ b/fs/ext2/xip.c
@@ -13,54 +13,6 @@
 #include "ext2.h"
 #include "xip.h"
 
-static inline int
-__inode_direct_access(struct inode *inode, sector_t block,
-                     void **kaddr, unsigned long *pfn)
-{
-       struct block_device *bdev = inode->i_sb->s_bdev;
-       const struct block_device_operations *ops = bdev->bd_disk->fops;
-       sector_t sector;
-
-       sector = block * (PAGE_SIZE / 512); /* ext2 block to bdev sector */
-
-       BUG_ON(!ops->direct_access);
-       return ops->direct_access(bdev, sector, kaddr, pfn);
-}
-
-static inline int
-__ext2_get_block(struct inode *inode, pgoff_t pgoff, int create,
-                  sector_t *result)
-{
-       struct buffer_head tmp;
-       int rc;
-
-       memset(&tmp, 0, sizeof(struct buffer_head));
-       tmp.b_size = 1 << inode->i_blkbits;
-       rc = ext2_get_block(inode, pgoff, &tmp, create);
-       *result = tmp.b_blocknr;
-
-       /* did we get a sparse block (hole in the file)? */
-       if (!tmp.b_blocknr && !rc) {
-               BUG_ON(create);
-               rc = -ENODATA;
-       }
-
-       return rc;
-}
-
-int
-ext2_clear_xip_target(struct inode *inode, sector_t block)
-{
-       void *kaddr;
-       unsigned long pfn;
-       int rc;
-
-       rc = __inode_direct_access(inode, block, &kaddr, &pfn);
-       if (!rc)
-               clear_page(kaddr);
-       return rc;
-}
-
 void ext2_xip_verify_sb(struct super_block *sb)
 {
        struct ext2_sb_info *sbi = EXT2_SB(sb);
@@ -73,19 +25,3 @@ void ext2_xip_verify_sb(struct super_block *sb)
                             "not supported by bdev");
        }
 }
-
-int ext2_get_xip_mem(struct address_space *mapping, pgoff_t pgoff, int create,
-                               void **kmem, unsigned long *pfn)
-{
-       int rc;
-       sector_t block;
-
-       /* first, retrieve the sector number */
-       rc = __ext2_get_block(mapping->host, pgoff, create, &block);
-       if (rc)
-               return rc;
-
-       /* retrieve address of the target data */
-       rc = __inode_direct_access(mapping->host, block, kmem, pfn);
-       return rc;
-}