[CPUFREQ] Rewrite lock in cpufreq to eliminate cpufreq/hotplug related issues

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

diff --git a/include/linux/fs.h b/include/linux/fs.h
index adce6e1d70c2cf0c20ec97ce628df2307e025d55..1410e5330c8daafb1a9e781dca9c56c5e1c4a0e5 100644 (file)
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -120,6 +120,7 @@ extern int dir_notify_enable;
 #define MS_PRIVATE     (1<<18) /* change to private */
 #define MS_SLAVE       (1<<19) /* change to slave */
 #define MS_SHARED      (1<<20) /* change to shared */
+#define MS_RELATIME    (1<<21) /* Update atime relative to mtime/ctime. */
 #define MS_ACTIVE      (1<<30)
 #define MS_NOUSER      (1<<31)
 
@@ -425,6 +426,7 @@ struct address_space_operations {
        /* migrate the contents of a page to the specified target */
        int (*migratepage) (struct address_space *,
                        struct page *, struct page *);
+       int (*launder_page) (struct page *);
 };
 
 struct backing_dev_info;
@@ -457,7 +459,7 @@ struct block_device {
        struct inode *          bd_inode;       /* will die */
        int                     bd_openers;
        struct mutex            bd_mutex;       /* open/close mutex */
-       struct mutex            bd_mount_mutex; /* mount mutex */
+       struct semaphore        bd_mount_sem;
        struct list_head        bd_inodes;
        void *                  bd_holder;
        int                     bd_holders;