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Diffstat (limited to 'include/linux/fs.h')
-rw-r--r--include/linux/fs.h58
1 files changed, 26 insertions, 32 deletions
diff --git a/include/linux/fs.h b/include/linux/fs.h
index a6a625be13fc..5b248d61430c 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)