Merge branch 'proc' of git://git.kernel.org/pub/scm/linux/kernel/git/adobriyan/proc

[linux-2.6-omap-h63xx.git] / include / linux / fs.h

diff --git a/include/linux/fs.h b/include/linux/fs.h
index 024049543ae126335f21b796940a8cddd662a571..5b248d61430c92de2db9df74b6825fefa30fb710 100644 (file)
--- 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;
@@ -1151,6 +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
@@ -1265,20 +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
@@ -1592,7 +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) \
@@ -1713,7 +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
@@ -1723,13 +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
@@ -1760,9 +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
@@ -1851,6 +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)