fs: fix address space warnings in ioctl_fiemap()

[deliverable/linux.git] / include / linux / fs.h

diff --git a/include/linux/fs.h b/include/linux/fs.h
index f84d9928bdb16c75ea5cb0575892f8d7437c02bb..32b38cd829d33561163dd340ce1e307150db25d3 100644 (file)
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -242,6 +242,7 @@ struct inodes_stat_t {
 #define S_SWAPFILE     256     /* Do not truncate: swapon got its bmaps */
 #define S_PRIVATE      512     /* Inode is fs-internal */
 #define S_IMA          1024    /* Inode has an associated IMA struct */
+#define S_AUTOMOUNT    2048    /* Automount/referral quasi-directory */
 
 /*
  * Note that nosuid etc flags are inode-specific: setting some file-system
@@ -277,6 +278,7 @@ struct inodes_stat_t {
 #define IS_SWAPFILE(inode)     ((inode)->i_flags & S_SWAPFILE)
 #define IS_PRIVATE(inode)      ((inode)->i_flags & S_PRIVATE)
 #define IS_IMA(inode)          ((inode)->i_flags & S_IMA)
+#define IS_AUTOMOUNT(inode)    ((inode)->i_flags & S_AUTOMOUNT)
 
 /* the read-only stuff doesn't really belong here, but any other place is
    probably as bad and I don't want to create yet another include file. */
@@ -664,8 +666,9 @@ struct block_device {
        void *                  bd_claiming;
        void *                  bd_holder;
        int                     bd_holders;
+       bool                    bd_write_holder;
 #ifdef CONFIG_SYSFS
-       struct list_head        bd_holder_list;
+       struct list_head        bd_holder_disks;
 #endif
        struct block_device *   bd_contains;
        unsigned                bd_block_size;
@@ -1065,7 +1068,6 @@ struct lock_manager_operations {
        int (*fl_grant)(struct file_lock *, struct file_lock *, int);
        void (*fl_release_private)(struct file_lock *);
        void (*fl_break)(struct file_lock *);
-       int (*fl_mylease)(struct file_lock *, struct file_lock *);
        int (*fl_change)(struct file_lock **, int);
 };
 
@@ -1423,6 +1425,7 @@ struct super_block {
         * generic_show_options()
         */
        char __rcu *s_options;
+       const struct dentry_operations *s_d_op; /* default d_op for dentries */
 };
 
 extern struct timespec current_fs_time(struct super_block *sb);
@@ -1480,8 +1483,8 @@ struct fiemap_extent_info {
        unsigned int fi_flags;          /* Flags as passed from user */
        unsigned int fi_extents_mapped; /* Number of mapped extents */
        unsigned int fi_extents_max;    /* Size of fiemap_extent array */
-       struct fiemap_extent *fi_extents_start; /* Start of fiemap_extent
-                                                * array */
+       struct fiemap_extent __user *fi_extents_start; /* Start of
+                                                       fiemap_extent array */
 };
 int fiemap_fill_next_extent(struct fiemap_extent_info *info, u64 logical,
                            u64 phys, u64 len, u32 flags);
@@ -1549,6 +1552,8 @@ struct file_operations {
        ssize_t (*splice_write)(struct pipe_inode_info *, struct file *, loff_t *, size_t, unsigned int);
        ssize_t (*splice_read)(struct file *, loff_t *, struct pipe_inode_info *, size_t, unsigned int);
        int (*setlease)(struct file *, long, struct file_lock **);
+       long (*fallocate)(struct file *file, int mode, loff_t offset,
+                         loff_t len);
 };
 
 #define IPERM_FLAG_RCU 0x0001
@@ -1579,8 +1584,6 @@ struct inode_operations {
        ssize_t (*listxattr) (struct dentry *, char *, size_t);
        int (*removexattr) (struct dentry *, const char *);
        void (*truncate_range)(struct inode *, loff_t, loff_t);
-       long (*fallocate)(struct inode *inode, int mode, loff_t offset,
-                         loff_t len);
        int (*fiemap)(struct inode *, struct fiemap_extent_info *, u64 start,
                      u64 len);
 } ____cacheline_aligned;
@@ -1834,7 +1837,9 @@ struct super_block *sget(struct file_system_type *type,
                        int (*set)(struct super_block *,void *),
                        void *data);
 extern struct dentry *mount_pseudo(struct file_system_type *, char *,
-       const struct super_operations *ops, unsigned long);
+       const struct super_operations *ops,
+       const struct dentry_operations *dops,
+       unsigned long);
 extern void simple_set_mnt(struct vfsmount *mnt, struct super_block *sb);
 
 static inline void sb_mark_dirty(struct super_block *sb)
@@ -2016,7 +2021,6 @@ extern struct block_device *bdgrab(struct block_device *bdev);
 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, fmode_t);
 extern void invalidate_bdev(struct block_device *);
 extern int sync_blockdev(struct block_device *bdev);
 extern struct super_block *freeze_bdev(struct block_device *);
@@ -2047,16 +2051,26 @@ extern const struct file_operations def_fifo_fops;
 extern int ioctl_by_bdev(struct block_device *, unsigned, unsigned long);
 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 *, 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 *);
+extern int blkdev_get(struct block_device *bdev, fmode_t mode, void *holder);
+extern struct block_device *blkdev_get_by_path(const char *path, fmode_t mode,
+                                              void *holder);
+extern struct block_device *blkdev_get_by_dev(dev_t dev, fmode_t mode,
+                                             void *holder);
+extern int blkdev_put(struct block_device *bdev, fmode_t mode);
 #ifdef CONFIG_SYSFS
-extern int bd_claim_by_disk(struct block_device *, void *, struct gendisk *);
-extern void bd_release_from_disk(struct block_device *, struct gendisk *);
+extern int bd_link_disk_holder(struct block_device *bdev, struct gendisk *disk);
+extern void bd_unlink_disk_holder(struct block_device *bdev,
+                                 struct gendisk *disk);
 #else
-#define bd_claim_by_disk(bdev, holder, disk)   bd_claim(bdev, holder)
-#define bd_release_from_disk(bdev, disk)       bd_release(bdev)
+static inline int bd_link_disk_holder(struct block_device *bdev,
+                                     struct gendisk *disk)
+{
+       return 0;
+}
+static inline void bd_unlink_disk_holder(struct block_device *bdev,
+                                        struct gendisk *disk)
+{
+}
 #endif
 #endif
 
@@ -2092,8 +2106,6 @@ static inline void unregister_chrdev(unsigned int major, const char *name)
 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_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