diff options
Diffstat (limited to 'fs/ext2/xip.c')
| -rw-r--r-- | fs/ext2/xip.c | 45 |
1 files changed, 0 insertions, 45 deletions
diff --git a/fs/ext2/xip.c b/fs/ext2/xip.c index 8cfca3a4cd58..132d4daf98c4 100644 --- a/fs/ext2/xip.c +++ b/fs/ext2/xip.c @@ -13,35 +13,6 @@ #include "ext2.h" #include "xip.h" -static inline long __inode_direct_access(struct inode *inode, sector_t block, - void **kaddr, unsigned long *pfn, long size) -{ - struct block_device *bdev = inode->i_sb->s_bdev; - sector_t sector = block * (PAGE_SIZE / 512); - return bdev_direct_access(bdev, sector, kaddr, pfn, size); -} - -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; -} - void ext2_xip_verify_sb(struct super_block *sb) { struct ext2_sb_info *sbi = EXT2_SB(sb); @@ -54,19 +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) -{ - long 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, PAGE_SIZE); - return (rc < 0) ? rc : 0; -} |