Merge branch 'server-cluster-locking-api' of git://linux-nfs.org/~bfields/linux

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

diff --git a/include/linux/fs.h b/include/linux/fs.h
index 1410e53..bc6d27c 100644 (file)
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -169,6 +169,7 @@ extern int dir_notify_enable;
 #define IS_DIRSYNC(inode)      (__IS_FLG(inode, MS_SYNCHRONOUS|MS_DIRSYNC) || \
                                        ((inode)->i_flags & (S_SYNC|S_DIRSYNC)))
 #define IS_MANDLOCK(inode)     __IS_FLG(inode, MS_MANDLOCK)
+#define IS_NOATIME(inode)   __IS_FLG(inode, MS_RDONLY|MS_NOATIME)
 
 #define IS_NOQUOTA(inode)      ((inode)->i_flags & S_NOQUOTA)
 #define IS_APPEND(inode)       ((inode)->i_flags & S_APPEND)
@@ -550,7 +551,7 @@ struct inode {
        spinlock_t              i_lock; /* i_blocks, i_bytes, maybe i_size */
        struct mutex            i_mutex;
        struct rw_semaphore     i_alloc_sem;
-       struct inode_operations *i_op;
+       const struct inode_operations   *i_op;
        const struct file_operations    *i_fop; /* former ->i_op->default_file_ops */
        struct super_block      *i_sb;
        struct file_lock        *i_flock;
@@ -695,12 +696,13 @@ struct file_ra_state {
        unsigned long size;
        unsigned long flags;            /* ra flags RA_FLAG_xxx*/
        unsigned long cache_hit;        /* cache hit count*/
-       unsigned long prev_page;        /* Cache last read() position */
+       unsigned long prev_index;       /* Cache last read() position */
        unsigned long ahead_start;      /* Ahead window */
        unsigned long ahead_size;
        unsigned long ra_pages;         /* Maximum readahead window */
        unsigned long mmap_hit;         /* Cache hit stat for mmap accesses */
        unsigned long mmap_miss;        /* Cache miss stat for mmap accesses */
+       unsigned int prev_offset;       /* Offset where last read() ended in a page */
 };
 #define RA_FLAG_MISS 0x01      /* a cache miss occured against this file */
 #define RA_FLAG_INCACHE 0x02   /* file is already in cache */
@@ -784,6 +786,7 @@ struct file_lock_operations {
 struct lock_manager_operations {
        int (*fl_compare_owner)(struct file_lock *, struct file_lock *);
        void (*fl_notify)(struct file_lock *);  /* unblock callback */
+       int (*fl_grant)(struct file_lock *, struct file_lock *, int);
        void (*fl_copy_lock)(struct file_lock *, struct file_lock *);
        void (*fl_release_private)(struct file_lock *);
        void (*fl_break)(struct file_lock *);
@@ -842,19 +845,26 @@ extern int fcntl_setlease(unsigned int fd, struct file *filp, long arg);
 extern int fcntl_getlease(struct file *filp);
 
 /* fs/sync.c */
-extern int do_sync_file_range(struct file *file, loff_t offset, loff_t endbyte,
-                       unsigned int flags);
+extern int do_sync_mapping_range(struct address_space *mapping, loff_t offset,
+                       loff_t endbyte, unsigned int flags);
+static inline int do_sync_file_range(struct file *file, loff_t offset,
+                       loff_t endbyte, unsigned int flags)
+{
+       return do_sync_mapping_range(file->f_mapping, offset, endbyte, flags);
+}
 
 /* fs/locks.c */
 extern void locks_init_lock(struct file_lock *);
 extern void locks_copy_lock(struct file_lock *, struct file_lock *);
 extern void locks_remove_posix(struct file *, fl_owner_t);
 extern void locks_remove_flock(struct file *);
-extern int posix_test_lock(struct file *, struct file_lock *, struct file_lock *);
-extern int posix_lock_file_conf(struct file *, struct file_lock *, struct file_lock *);
-extern int posix_lock_file(struct file *, struct file_lock *);
+extern int posix_test_lock(struct file *, struct file_lock *);
+extern int posix_lock_file(struct file *, struct file_lock *, struct file_lock *);
 extern int posix_lock_file_wait(struct file *, struct file_lock *);
 extern int posix_unblock_lock(struct file *, struct file_lock *);
+extern int vfs_test_lock(struct file *, struct file_lock *);
+extern int vfs_lock_file(struct file *, unsigned int, struct file_lock *, struct file_lock *);
+extern int vfs_cancel_lock(struct file *filp, struct file_lock *fl);
 extern int flock_lock_file_wait(struct file *filp, struct file_lock *fl);
 extern int __break_lease(struct inode *inode, unsigned int flags);
 extern void lease_get_mtime(struct inode *, struct timespec *time);
@@ -906,7 +916,7 @@ struct super_block {
        unsigned char           s_dirt;
        unsigned long long      s_maxbytes;     /* Max file size */
        struct file_system_type *s_type;
-       struct super_operations *s_op;
+       const struct super_operations   *s_op;
        struct dquot_operations *dq_op;
        struct quotactl_ops     *s_qcop;
        struct export_operations *s_export_op;
@@ -1382,7 +1392,7 @@ struct super_block *sget(struct file_system_type *type,
                        int (*set)(struct super_block *,void *),
                        void *data);
 extern int get_sb_pseudo(struct file_system_type *, char *,
-       struct super_operations *ops, unsigned long,
+       const struct super_operations *ops, unsigned long,
        struct vfsmount *mnt);
 extern int simple_set_mnt(struct vfsmount *mnt, struct super_block *sb);
 int __put_super(struct super_block *sb);
@@ -1410,7 +1420,7 @@ extern void mnt_set_mountpoint(struct vfsmount *, struct dentry *,
 extern int vfs_statfs(struct dentry *, struct kstatfs *);
 
 /* /sys/fs */
-extern struct subsystem fs_subsys;
+extern struct kset fs_subsys;
 
 #define FLOCK_VERIFY_READ  1
 #define FLOCK_VERIFY_WRITE 2
@@ -1572,12 +1582,18 @@ extern int invalidate_partition(struct gendisk *, int);
 extern int invalidate_inodes(struct super_block *);
 unsigned long invalidate_mapping_pages(struct address_space *mapping,
                                        pgoff_t start, pgoff_t end);
-unsigned long invalidate_inode_pages(struct address_space *mapping);
+
+static inline unsigned long __deprecated
+invalidate_inode_pages(struct address_space *mapping)
+{
+       return invalidate_mapping_pages(mapping, 0, ~0UL);
+}
+
 static inline void invalidate_remote_inode(struct inode *inode)
 {
        if (S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) ||
            S_ISLNK(inode->i_mode))
-               invalidate_inode_pages(inode->i_mapping);
+               invalidate_mapping_pages(inode->i_mapping, 0, -1);
 }
 extern int invalidate_inode_pages2(struct address_space *mapping);
 extern int invalidate_inode_pages2_range(struct address_space *mapping,
@@ -1681,7 +1697,6 @@ extern struct inode *new_inode(struct super_block *);
 extern int __remove_suid(struct dentry *, int);
 extern int should_remove_suid(struct dentry *);
 extern int remove_suid(struct dentry *);
-extern void remove_dquot_ref(struct super_block *, int, struct list_head *);
 
 extern void __insert_inode_hash(struct inode *, unsigned long hashval);
 extern void remove_inode_hash(struct inode *);
@@ -1822,7 +1837,7 @@ extern void page_put_link(struct dentry *, struct nameidata *, void *);
 extern int __page_symlink(struct inode *inode, const char *symname, int len,
                gfp_t gfp_mask);
 extern int page_symlink(struct inode *inode, const char *symname, int len);
-extern struct inode_operations page_symlink_inode_operations;
+extern const struct inode_operations page_symlink_inode_operations;
 extern int generic_readlink(struct dentry *, char __user *, int);
 extern void generic_fillattr(struct inode *, struct kstat *);
 extern int vfs_getattr(struct vfsmount *, struct dentry *, struct kstat *);
@@ -1867,7 +1882,7 @@ extern int simple_commit_write(struct file *file, struct page *page,
 extern struct dentry *simple_lookup(struct inode *, struct dentry *, struct nameidata *);
 extern ssize_t generic_read_dir(struct file *, char __user *, size_t, loff_t *);
 extern const struct file_operations simple_dir_operations;
-extern struct inode_operations simple_dir_inode_operations;
+extern const struct inode_operations simple_dir_inode_operations;
 struct tree_descr { char *name; const struct file_operations *ops; int mode; };
 struct dentry *d_alloc_name(struct dentry *, const char *);
 extern int simple_fill_super(struct super_block *, int, struct tree_descr *);