buffer.c
上传用户:lgb322
上传日期:2013-02-24
资源大小:30529k
文件大小:2k
- /*
- * linux/fs/fat/buffer.c
- *
- *
- */
- #include <linux/mm.h>
- #include <linux/slab.h>
- #include <linux/string.h>
- #include <linux/fs.h>
- #include <linux/blkdev.h>
- #include <linux/msdos_fs.h>
- #include <linux/fat_cvf.h>
- #if 0
- # define PRINTK(x) printk x
- #else
- # define PRINTK(x)
- #endif
- struct buffer_head *fat_bread(struct super_block *sb, int block)
- {
- return MSDOS_SB(sb)->cvf_format->cvf_bread(sb,block);
- }
- struct buffer_head *fat_getblk(struct super_block *sb, int block)
- {
- return MSDOS_SB(sb)->cvf_format->cvf_getblk(sb,block);
- }
- void fat_brelse (struct super_block *sb, struct buffer_head *bh)
- {
- if (bh)
- MSDOS_SB(sb)->cvf_format->cvf_brelse(sb,bh);
- }
- void fat_mark_buffer_dirty (
- struct super_block *sb,
- struct buffer_head *bh)
- {
- MSDOS_SB(sb)->cvf_format->cvf_mark_buffer_dirty(sb,bh);
- }
- void fat_set_uptodate (
- struct super_block *sb,
- struct buffer_head *bh,
- int val)
- {
- MSDOS_SB(sb)->cvf_format->cvf_set_uptodate(sb,bh,val);
- }
- int fat_is_uptodate(struct super_block *sb, struct buffer_head *bh)
- {
- return MSDOS_SB(sb)->cvf_format->cvf_is_uptodate(sb,bh);
- }
- void fat_ll_rw_block (
- struct super_block *sb,
- int opr,
- int nbreq,
- struct buffer_head *bh[32])
- {
- MSDOS_SB(sb)->cvf_format->cvf_ll_rw_block(sb,opr,nbreq,bh);
- }
- struct buffer_head *default_fat_bread(struct super_block *sb, int block)
- {
- return sb_bread(sb, block);
- }
- struct buffer_head *default_fat_getblk(struct super_block *sb, int block)
- {
- return sb_getblk(sb, block);
- }
- void default_fat_brelse(struct super_block *sb, struct buffer_head *bh)
- {
- brelse (bh);
- }
- void default_fat_mark_buffer_dirty (
- struct super_block *sb,
- struct buffer_head *bh)
- {
- mark_buffer_dirty (bh);
- }
- void default_fat_set_uptodate (
- struct super_block *sb,
- struct buffer_head *bh,
- int val)
- {
- mark_buffer_uptodate(bh, val);
- }
- int default_fat_is_uptodate (struct super_block *sb, struct buffer_head *bh)
- {
- return buffer_uptodate(bh);
- }
- void default_fat_ll_rw_block (
- struct super_block *sb,
- int opr,
- int nbreq,
- struct buffer_head *bh[32])
- {
- ll_rw_block(opr,nbreq,bh);
- }