sysfs: kill sysfs_update_file()

sysfs_update_file() depends on inode->i_mtime but sysfs iondes are now
reclaimable making the reported modification time unreliable.  There's
only one user (pci hotplug) of this notification mechanism and it
reportedly isn't utilized from userland.

Kill sysfs_update_file().

Signed-off-by: Tejun Heo <htejun@gmail.com>
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 0 insertions, 7 deletions

diff --git a/include/linux/sysfs.h b/include/linux/sysfs.h
index b393bb449624..db5dd2403d08 100644
--- a/include/linux/sysfs.h
+++ b/include/linux/sysfs.h
@@ -87,8 +87,6 @@ int __must_check sysfs_move_dir(struct kobject *kobj,
 
 int __must_check sysfs_create_file(struct kobject *kobj,
                                    const struct attribute *attr);
-int __must_check sysfs_update_file(struct kobject *kobj,
-                                   const struct attribute *attr);
 int __must_check sysfs_chmod_file(struct kobject *kobj, struct attribute *attr,
                                   mode_t mode);
 void sysfs_remove_file(struct kobject *kobj, const struct attribute *attr);
@@ -149,11 +147,6 @@ static inline int sysfs_create_file(struct kobject *kobj,
         return 0;
 }
 
-static inline int sysfs_update_file(struct kobject *kobj,
-                                    const struct attribute *attr)
-{
-        return 0;
-}
 static inline int sysfs_chmod_file(struct kobject *kobj,
                                    struct attribute *attr, mode_t mode)
 {