diff options
Diffstat (limited to 'include/linux/fs.h')
| -rw-r--r-- | include/linux/fs.h | 58 |
1 files changed, 26 insertions, 32 deletions
diff --git a/include/linux/fs.h b/include/linux/fs.h index a6a625be13f..5b248d61430 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -63,18 +63,23 @@ extern int dir_notify_enable; #define MAY_ACCESS 16 #define MAY_OPEN 32 -#define FMODE_READ 1 -#define FMODE_WRITE 2 +#define FMODE_READ ((__force fmode_t)1) +#define FMODE_WRITE ((__force fmode_t)2) /* Internal kernel extensions */ -#define FMODE_LSEEK 4 -#define FMODE_PREAD 8 +#define FMODE_LSEEK ((__force fmode_t)4) +#define FMODE_PREAD ((__force fmode_t)8) #define FMODE_PWRITE FMODE_PREAD /* These go hand in hand */ /* File is being opened for execution. Primary users of this flag are distributed filesystems that can use it to achieve correct ETXTBUSY behavior for cross-node execution/opening_for_writing of files */ -#define FMODE_EXEC 16 +#define FMODE_EXEC ((__force fmode_t)16) + +#define FMODE_NDELAY ((__force fmode_t)32) +#define FMODE_EXCL ((__force fmode_t)64) +#define FMODE_WRITE_IOCTL ((__force fmode_t)128) +#define FMODE_NDELAY_NOW ((__force fmode_t)256) #define RW_MASK 1 #define RWA_MASK 2 @@ -136,7 +141,7 @@ extern int dir_notify_enable; /* * Superblock flags that can be altered by MS_REMOUNT */ -#define MS_RMT_MASK (MS_RDONLY|MS_SYNCHRONOUS|MS_MANDLOCK) +#define MS_RMT_MASK (MS_RDONLY|MS_SYNCHRONOUS|MS_MANDLOCK|MS_I_VERSION) /* * Old magic mount flag and mask @@ -825,7 +830,7 @@ struct file { const struct file_operations *f_op; atomic_long_t f_count; unsigned int f_flags; - mode_t f_mode; + fmode_t f_mode; loff_t f_pos; struct fown_struct f_owner; unsigned int f_uid, f_gid; @@ -1037,7 +1042,6 @@ extern int vfs_setlease(struct file *, long, struct file_lock **); extern int lease_modify(struct file_lock **, int); extern int lock_may_read(struct inode *, loff_t start, unsigned long count); extern int lock_may_write(struct inode *, loff_t start, unsigned long count); -extern struct seq_operations locks_seq_operations; #else /* !CONFIG_FILE_LOCKING */ #define fcntl_getlk(a, b) ({ -EINVAL; }) #define fcntl_setlk(a, b, c, d) ({ -EACCES; }) @@ -1152,6 +1156,7 @@ struct super_block { char s_id[32]; /* Informational name */ void *s_fs_info; /* Filesystem private info */ + fmode_t s_mode; /* * The next field is for VFS *only*. No filesystems have any business @@ -1266,20 +1271,7 @@ int generic_osync_inode(struct inode *, struct address_space *, int); * to have different dirent layouts depending on the binary type. */ typedef int (*filldir_t)(void *, const char *, int, loff_t, u64, unsigned); - -struct block_device_operations { - int (*open) (struct inode *, struct file *); - int (*release) (struct inode *, struct file *); - int (*ioctl) (struct inode *, struct file *, unsigned, unsigned long); - long (*unlocked_ioctl) (struct file *, unsigned, unsigned long); - long (*compat_ioctl) (struct file *, unsigned, unsigned long); - int (*direct_access) (struct block_device *, sector_t, - void **, unsigned long *); - int (*media_changed) (struct gendisk *); - int (*revalidate_disk) (struct gendisk *); - int (*getgeo)(struct block_device *, struct hd_geometry *); - struct module *owner; -}; +struct block_device_operations; /* These macros are for out of kernel modules to test that * the kernel supports the unlocked_ioctl and compat_ioctl @@ -1593,7 +1585,6 @@ extern int get_sb_pseudo(struct file_system_type *, char *, struct vfsmount *mnt); extern int simple_set_mnt(struct vfsmount *mnt, struct super_block *sb); int __put_super_and_need_restart(struct super_block *sb); -void unnamed_dev_init(void); /* Alas, no aliases. Too much hassle with bringing module.h everywhere */ #define fops_get(fops) \ @@ -1714,7 +1705,7 @@ extern struct block_device *bdget(dev_t); extern void bd_set_size(struct block_device *, loff_t size); extern void bd_forget(struct inode *inode); extern void bdput(struct block_device *); -extern struct block_device *open_by_devnum(dev_t, unsigned); +extern struct block_device *open_by_devnum(dev_t, fmode_t); #else static inline void bd_forget(struct inode *inode) {} #endif @@ -1724,13 +1715,10 @@ extern const struct file_operations bad_sock_fops; extern const struct file_operations def_fifo_fops; #ifdef CONFIG_BLOCK extern int ioctl_by_bdev(struct block_device *, unsigned, unsigned long); -extern int blkdev_ioctl(struct inode *, struct file *, unsigned, unsigned long); -extern int blkdev_driver_ioctl(struct inode *inode, struct file *file, - struct gendisk *disk, unsigned cmd, - unsigned long arg); +extern int blkdev_ioctl(struct block_device *, fmode_t, unsigned, unsigned long); extern long compat_blkdev_ioctl(struct file *, unsigned, unsigned long); -extern int blkdev_get(struct block_device *, mode_t, unsigned); -extern int blkdev_put(struct block_device *); +extern int blkdev_get(struct block_device *, fmode_t); +extern int blkdev_put(struct block_device *, fmode_t); extern int bd_claim(struct block_device *, void *); extern void bd_release(struct block_device *); #ifdef CONFIG_SYSFS @@ -1761,9 +1749,10 @@ extern void chrdev_show(struct seq_file *,off_t); extern const char *__bdevname(dev_t, char *buffer); extern const char *bdevname(struct block_device *bdev, char *buffer); extern struct block_device *lookup_bdev(const char *); -extern struct block_device *open_bdev_excl(const char *, int, void *); -extern void close_bdev_excl(struct block_device *); +extern struct block_device *open_bdev_exclusive(const char *, fmode_t, void *); +extern void close_bdev_exclusive(struct block_device *, fmode_t); extern void blkdev_show(struct seq_file *,off_t); + #else #define BLKDEV_MAJOR_HASH_SIZE 0 #endif @@ -1852,6 +1841,11 @@ extern int inode_permission(struct inode *, int); extern int generic_permission(struct inode *, int, int (*check_acl)(struct inode *, int)); +static inline bool execute_ok(struct inode *inode) +{ + return (inode->i_mode & S_IXUGO) || S_ISDIR(inode->i_mode); +} + extern int get_write_access(struct inode *); extern int deny_write_access(struct file *); static inline void put_write_access(struct inode * inode) |