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Remove unused pages_present() function

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Tue Nov 22 23:38:09 2005  Soeren Sandmann  <sandmann@redhat.com>

        * module/sysprof-module.c: Remove unused pages_present() function
This commit is contained in:
Soeren Sandmann
2005-11-23 04:26:36 +00:00
committed by Søren Sandmann Pedersen
parent 6797b3ef04
commit ecfcee7ab1
3 changed files with 8 additions and 33 deletions
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31
module/sysprof-module.c
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@ -189,37 +189,6 @@ read_frame (userspace_reader *reader, unsigned long addr, StackFrame *frame)
struct work_struct work;
/**
* pages_present() from OProfile
*
* Copyright 2002 OProfile authors
*
* author John Levon
* author David Smith
*/
#ifdef CONFIG_X86_4G
/* With a 4G kernel/user split, user pages are not directly
* accessible from the kernel, so don't try
*/
static int pages_present(StackFrame * head)
{
return 0;
}
#else
/* check that the page(s) containing the frame head are present */
static int pages_present(StackFrame * head)
{
struct mm_struct * mm = current->mm;
/* FIXME: only necessary once per page */
if (!check_user_page_readable(mm, (unsigned long)head))
return 0;
return check_user_page_readable(mm, (unsigned long)(head + 1));
}
#endif /* CONFIG_X86_4G */
static int
read_frame (void *frame_pointer, StackFrame *frame)
{