[PATCH] page_uptodate locking scalability

[powerpc.git] / fs / sysfs / file.c

diff --git a/fs/sysfs/file.c b/fs/sysfs/file.c
index 849aac1..d72c1ce 100644 (file)
--- a/fs/sysfs/file.c
+++ b/fs/sysfs/file.c
@@ -5,6 +5,7 @@
 #include <linux/module.h>
 #include <linux/dnotify.h>
 #include <linux/kobject.h>
+#include <linux/namei.h>
 #include <asm/uaccess.h>
 #include <asm/semaphore.h>
 
@@ -13,7 +14,7 @@
 #define to_subsys(k) container_of(k,struct subsystem,kset.kobj)
 #define to_sattr(a) container_of(a,struct subsys_attribute,attr)
 
-/**
+/*
  * Subsystem file operations.
  * These operations allow subsystems to have files that can be 
  * read/written. 
@@ -191,8 +192,9 @@ fill_write_buffer(struct sysfs_buffer * buffer, const char __user * buf, size_t
 
 /**
  *     flush_write_buffer - push buffer to kobject.
- *     @file:          file pointer.
+ *     @dentry:        dentry to the attribute
  *     @buffer:        data buffer for file.
+ *     @count:         number of bytes
  *
  *     Get the correct pointers for the kobject and the attribute we're
  *     dealing with, then call the store() method for the attribute, 
@@ -400,7 +402,7 @@ int sysfs_update_file(struct kobject * kobj, const struct attribute * attr)
        int res = -ENOENT;
 
        down(&dir->d_inode->i_sem);
-       victim = sysfs_get_dentry(dir, attr->name);
+       victim = lookup_one_len(attr->name, dir, strlen(attr->name));
        if (!IS_ERR(victim)) {
                /* make sure dentry is really there */
                if (victim->d_inode && 
@@ -443,7 +445,7 @@ int sysfs_chmod_file(struct kobject *kobj, struct attribute *attr, mode_t mode)
        int res = -ENOENT;
 
        down(&dir->d_inode->i_sem);
-       victim = sysfs_get_dentry(dir, attr->name);
+       victim = lookup_one_len(attr->name, dir, strlen(attr->name));
        if (!IS_ERR(victim)) {
                if (victim->d_inode &&
                    (victim->d_parent->d_inode == dir->d_inode)) {