Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6

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

diff --git a/include/linux/fs.h b/include/linux/fs.h
index 25998e803fc2c5e2dec310fd13be335b294e6c99..580b513668feffbb32f9d161113e10b17718dfe5 100644 (file)
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -61,8 +61,7 @@ extern int dir_notify_enable;
 #define MAY_READ 4
 #define MAY_APPEND 8
 #define MAY_ACCESS 16
-#define MAY_CHDIR 32
-#define MAY_OPEN 64
+#define MAY_OPEN 32
 
 #define FMODE_READ 1
 #define FMODE_WRITE 2
@@ -280,7 +279,7 @@ extern int dir_notify_enable;
 #include <linux/types.h>
 #include <linux/kdev_t.h>
 #include <linux/dcache.h>
-#include <linux/namei.h>
+#include <linux/path.h>
 #include <linux/stat.h>
 #include <linux/cache.h>
 #include <linux/kobject.h>
@@ -321,22 +320,23 @@ typedef void (dio_iodone_t)(struct kiocb *iocb, loff_t offset,
  * Attribute flags.  These should be or-ed together to figure out what
  * has been changed!
  */
-#define ATTR_MODE      1
-#define ATTR_UID       2
-#define ATTR_GID       4
-#define ATTR_SIZE      8
-#define ATTR_ATIME     16
-#define ATTR_MTIME     32
-#define ATTR_CTIME     64
-#define ATTR_ATIME_SET 128
-#define ATTR_MTIME_SET 256
-#define ATTR_FORCE     512     /* Not a change, but a change it */
-#define ATTR_ATTR_FLAG 1024
-#define ATTR_KILL_SUID 2048
-#define ATTR_KILL_SGID 4096
-#define ATTR_FILE      8192
-#define ATTR_KILL_PRIV 16384
-#define ATTR_OPEN      32768   /* Truncating from open(O_TRUNC) */
+#define ATTR_MODE      (1 << 0)
+#define ATTR_UID       (1 << 1)
+#define ATTR_GID       (1 << 2)
+#define ATTR_SIZE      (1 << 3)
+#define ATTR_ATIME     (1 << 4)
+#define ATTR_MTIME     (1 << 5)
+#define ATTR_CTIME     (1 << 6)
+#define ATTR_ATIME_SET (1 << 7)
+#define ATTR_MTIME_SET (1 << 8)
+#define ATTR_FORCE     (1 << 9) /* Not a change, but a change it */
+#define ATTR_ATTR_FLAG (1 << 10)
+#define ATTR_KILL_SUID (1 << 11)
+#define ATTR_KILL_SGID (1 << 12)
+#define ATTR_FILE      (1 << 13)
+#define ATTR_KILL_PRIV (1 << 14)
+#define ATTR_OPEN      (1 << 15) /* Truncating from open(O_TRUNC) */
+#define ATTR_TIMES_SET (1 << 16)
 
 /*
  * This is the Inode Attributes structure, used for notify_change().  It
@@ -443,6 +443,27 @@ static inline size_t iov_iter_count(struct iov_iter *i)
        return i->count;
 }
 
+/*
+ * "descriptor" for what we're up to with a read.
+ * This allows us to use the same read code yet
+ * have multiple different users of the data that
+ * we read from a file.
+ *
+ * The simplest case just copies the data to user
+ * mode.
+ */
+typedef struct {
+       size_t written;
+       size_t count;
+       union {
+               char __user *buf;
+               void *data;
+       } arg;
+       int error;
+} read_descriptor_t;
+
+typedef int (*read_actor_t)(read_descriptor_t *, struct page *,
+               unsigned long, unsigned long);
 
 struct address_space_operations {
        int (*writepage)(struct page *page, struct writeback_control *wbc);
@@ -484,6 +505,8 @@ struct address_space_operations {
        int (*migratepage) (struct address_space *,
                        struct page *, struct page *);
        int (*launder_page) (struct page *);
+       int (*is_partially_uptodate) (struct page *, read_descriptor_t *,
+                                       unsigned long);
 };
 
 /*
@@ -795,7 +818,7 @@ struct file {
 #define f_dentry       f_path.dentry
 #define f_vfsmnt       f_path.mnt
        const struct file_operations    *f_op;
-       atomic_t                f_count;
+       atomic_long_t           f_count;
        unsigned int            f_flags;
        mode_t                  f_mode;
        loff_t                  f_pos;
@@ -824,8 +847,8 @@ extern spinlock_t files_lock;
 #define file_list_lock() spin_lock(&files_lock);
 #define file_list_unlock() spin_unlock(&files_lock);
 
-#define get_file(x)    atomic_inc(&(x)->f_count)
-#define file_count(x)  atomic_read(&(x)->f_count)
+#define get_file(x)    atomic_long_inc(&(x)->f_count)
+#define file_count(x)  atomic_long_read(&(x)->f_count)
 
 #ifdef CONFIG_DEBUG_WRITECOUNT
 static inline void file_take_write(struct file *f)
@@ -1198,27 +1221,6 @@ struct block_device_operations {
        struct module *owner;
 };
 
-/*
- * "descriptor" for what we're up to with a read.
- * This allows us to use the same read code yet
- * have multiple different users of the data that
- * we read from a file.
- *
- * The simplest case just copies the data to user
- * mode.
- */
-typedef struct {
-       size_t written;
-       size_t count;
-       union {
-               char __user * buf;
-               void *data;
-       } arg;
-       int error;
-} read_descriptor_t;
-
-typedef int (*read_actor_t)(read_descriptor_t *, struct page *, unsigned long, unsigned long);
-
 /* These macros are for out of kernel modules to test that
  * the kernel supports the unlocked_ioctl and compat_ioctl
  * fields in struct file_operations. */
@@ -1770,7 +1772,7 @@ extern int do_remount_sb(struct super_block *sb, int flags,
 extern sector_t bmap(struct inode *, sector_t);
 #endif
 extern int notify_change(struct dentry *, struct iattr *);
-extern int permission(struct inode *, int, struct nameidata *);
+extern int inode_permission(struct inode *, int);
 extern int generic_permission(struct inode *, int,
                int (*check_acl)(struct inode *, int));