From: William Lee Irwin III <wli@holomorphy.com>
Remove the accounting overhead when CONFIG_PROC_FS is not defined.
Signed-off-by: Andrew Morton <akpm@osdl.org>
---
25-akpm/include/linux/mm.h | 8 ++++++++
25-akpm/mm/mmap.c | 2 ++
2 files changed, 10 insertions(+)
diff -puN include/linux/mm.h~task-statm-no-procfs-fix include/linux/mm.h
--- 25/include/linux/mm.h~task-statm-no-procfs-fix 2004-08-25 00:33:03.883220080 -0700
+++ 25-akpm/include/linux/mm.h 2004-08-25 00:33:03.889219168 -0700
@@ -754,7 +754,15 @@ extern struct page * follow_page(struct
int write);
extern int remap_page_range(struct vm_area_struct *vma, unsigned long from,
unsigned long to, unsigned long size, pgprot_t prot);
+
+#ifdef CONFIG_PROC_FS
void __vm_stat_account(struct mm_struct *, unsigned long, struct file *, long);
+#else
+static inline void __vm_stat_account(struct mm_struct *mm,
+ unsigned long flags, struct file *file, long pages)
+{
+}
+#endif /* CONFIG_PROC_FS */
static inline void vm_stat_account(struct vm_area_struct *vma)
{
diff -puN mm/mmap.c~task-statm-no-procfs-fix mm/mmap.c
--- 25/mm/mmap.c~task-statm-no-procfs-fix 2004-08-25 00:33:03.885219776 -0700
+++ 25-akpm/mm/mmap.c 2004-08-25 00:33:03.890219016 -0700
@@ -729,6 +729,7 @@ none:
return NULL;
}
+#ifdef CONFIG_PROC_FS
void __vm_stat_account(struct mm_struct *mm, unsigned long flags,
struct file *file, long pages)
{
@@ -750,6 +751,7 @@ void __vm_stat_account(struct mm_struct
if (flags & VM_EXEC)
mm->exec_vm += pages;
}
+#endif /* CONFIG_PROC_FS */
/*
* The caller must hold down_write(current->mm->mmap_sem).
_