dm mpath: check if scsi_dh module already loaded before trying to load
[zen-stable.git] / fs / qnx4 / qnx4.h
blob33a60858203b8141f2d96a280b7b2a96b2490d4e
1 #include <linux/fs.h>
2 #include <linux/qnx4_fs.h>
4 #define QNX4_DEBUG 0
6 #if QNX4_DEBUG
7 #define QNX4DEBUG(X) printk X
8 #else
9 #define QNX4DEBUG(X) (void) 0
10 #endif
12 struct qnx4_sb_info {
13 struct buffer_head *sb_buf; /* superblock buffer */
14 struct qnx4_super_block *sb; /* our superblock */
15 unsigned int Version; /* may be useful */
16 struct qnx4_inode_entry *BitMap; /* useful */
19 struct qnx4_inode_info {
20 struct qnx4_inode_entry raw;
21 loff_t mmu_private;
22 struct inode vfs_inode;
25 extern struct inode *qnx4_iget(struct super_block *, unsigned long);
26 extern struct dentry *qnx4_lookup(struct inode *dir, struct dentry *dentry, struct nameidata *nd);
27 extern unsigned long qnx4_count_free_blocks(struct super_block *sb);
28 extern unsigned long qnx4_block_map(struct inode *inode, long iblock);
30 extern struct buffer_head *qnx4_bread(struct inode *, int, int);
32 extern const struct inode_operations qnx4_dir_inode_operations;
33 extern const struct file_operations qnx4_dir_operations;
34 extern int qnx4_is_free(struct super_block *sb, long block);
36 static inline struct qnx4_sb_info *qnx4_sb(struct super_block *sb)
38 return sb->s_fs_info;
41 static inline struct qnx4_inode_info *qnx4_i(struct inode *inode)
43 return container_of(inode, struct qnx4_inode_info, vfs_inode);
46 static inline struct qnx4_inode_entry *qnx4_raw_inode(struct inode *inode)
48 return &qnx4_i(inode)->raw;