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authorHugh Dickins <hugh@veritas.com>2005-10-29 18:15:56 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2005-10-29 21:40:37 -0700
commitab50b8ed818016cfecd747d6d4bb9139986bc029 (patch)
tree33c666578c14dccce05b3f7a5538405098eebcc4
parent72866f6f277ec0ddd6df7a3b6ecdcf59a28de115 (diff)
downloadop-kernel-dev-ab50b8ed818016cfecd747d6d4bb9139986bc029.zip
op-kernel-dev-ab50b8ed818016cfecd747d6d4bb9139986bc029.tar.gz
[PATCH] mm: vm_stat_account unshackled
The original vm_stat_account has fallen into disuse, with only one user, and only one user of vm_stat_unaccount. It's easier to keep track if we convert them all to __vm_stat_account, then free it from its __shackles. Signed-off-by: Hugh Dickins <hugh@veritas.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
-rw-r--r--arch/ia64/kernel/perfmon.c3
-rw-r--r--arch/ia64/mm/fault.c2
-rw-r--r--include/linux/mm.h16
-rw-r--r--kernel/fork.c2
-rw-r--r--mm/mmap.c20
-rw-r--r--mm/mprotect.c4
-rw-r--r--mm/mremap.c4
7 files changed, 20 insertions, 31 deletions
diff --git a/arch/ia64/kernel/perfmon.c b/arch/ia64/kernel/perfmon.c
index d71731e..f7dfc10 100644
--- a/arch/ia64/kernel/perfmon.c
+++ b/arch/ia64/kernel/perfmon.c
@@ -2352,7 +2352,8 @@ pfm_smpl_buffer_alloc(struct task_struct *task, pfm_context_t *ctx, unsigned lon
insert_vm_struct(mm, vma);
mm->total_vm += size >> PAGE_SHIFT;
- vm_stat_account(vma);
+ vm_stat_account(vma->vm_mm, vma->vm_flags, vma->vm_file,
+ vma_pages(vma));
up_write(&task->mm->mmap_sem);
/*
diff --git a/arch/ia64/mm/fault.c b/arch/ia64/mm/fault.c
index 3c32af9..f21b555 100644
--- a/arch/ia64/mm/fault.c
+++ b/arch/ia64/mm/fault.c
@@ -41,7 +41,7 @@ expand_backing_store (struct vm_area_struct *vma, unsigned long address)
vma->vm_mm->total_vm += grow;
if (vma->vm_flags & VM_LOCKED)
vma->vm_mm->locked_vm += grow;
- __vm_stat_account(vma->vm_mm, vma->vm_flags, vma->vm_file, grow);
+ vm_stat_account(vma->vm_mm, vma->vm_flags, vma->vm_file, grow);
return 0;
}
diff --git a/include/linux/mm.h b/include/linux/mm.h
index e164957..376a466 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -928,26 +928,14 @@ int remap_pfn_range(struct vm_area_struct *, unsigned long,
unsigned long, unsigned long, pgprot_t);
#ifdef CONFIG_PROC_FS
-void __vm_stat_account(struct mm_struct *, unsigned long, struct file *, long);
+void vm_stat_account(struct mm_struct *, unsigned long, struct file *, long);
#else
-static inline void __vm_stat_account(struct mm_struct *mm,
+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)
-{
- __vm_stat_account(vma->vm_mm, vma->vm_flags, vma->vm_file,
- vma_pages(vma));
-}
-
-static inline void vm_stat_unaccount(struct vm_area_struct *vma)
-{
- __vm_stat_account(vma->vm_mm, vma->vm_flags, vma->vm_file,
- -vma_pages(vma));
-}
-
/* update per process rss and vm hiwater data */
extern void update_mem_hiwater(struct task_struct *tsk);
diff --git a/kernel/fork.c b/kernel/fork.c
index 280bd44..e2ff11f 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -212,7 +212,7 @@ static inline int dup_mmap(struct mm_struct * mm, struct mm_struct * oldmm)
if (mpnt->vm_flags & VM_DONTCOPY) {
long pages = vma_pages(mpnt);
mm->total_vm -= pages;
- __vm_stat_account(mm, mpnt->vm_flags, mpnt->vm_file,
+ vm_stat_account(mm, mpnt->vm_flags, mpnt->vm_file,
-pages);
continue;
}
diff --git a/mm/mmap.c b/mm/mmap.c
index fa11d91..e178026 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -832,7 +832,7 @@ none:
}
#ifdef CONFIG_PROC_FS
-void __vm_stat_account(struct mm_struct *mm, unsigned long flags,
+void vm_stat_account(struct mm_struct *mm, unsigned long flags,
struct file *file, long pages)
{
const unsigned long stack_flags
@@ -1110,7 +1110,7 @@ munmap_back:
}
out:
mm->total_vm += len >> PAGE_SHIFT;
- __vm_stat_account(mm, vm_flags, file, len >> PAGE_SHIFT);
+ vm_stat_account(mm, vm_flags, file, len >> PAGE_SHIFT);
if (vm_flags & VM_LOCKED) {
mm->locked_vm += len >> PAGE_SHIFT;
make_pages_present(addr, addr + len);
@@ -1475,7 +1475,7 @@ static int acct_stack_growth(struct vm_area_struct * vma, unsigned long size, un
mm->total_vm += grow;
if (vma->vm_flags & VM_LOCKED)
mm->locked_vm += grow;
- __vm_stat_account(mm, vma->vm_flags, vma->vm_file, grow);
+ vm_stat_account(mm, vma->vm_flags, vma->vm_file, grow);
return 0;
}
@@ -1610,15 +1610,15 @@ find_extend_vma(struct mm_struct * mm, unsigned long addr)
* By the time this function is called, the area struct has been
* removed from the process mapping list.
*/
-static void unmap_vma(struct mm_struct *mm, struct vm_area_struct *area)
+static void unmap_vma(struct mm_struct *mm, struct vm_area_struct *vma)
{
- size_t len = area->vm_end - area->vm_start;
+ long nrpages = vma_pages(vma);
- area->vm_mm->total_vm -= len >> PAGE_SHIFT;
- if (area->vm_flags & VM_LOCKED)
- area->vm_mm->locked_vm -= len >> PAGE_SHIFT;
- vm_stat_unaccount(area);
- remove_vm_struct(area);
+ mm->total_vm -= nrpages;
+ if (vma->vm_flags & VM_LOCKED)
+ mm->locked_vm -= nrpages;
+ vm_stat_account(mm, vma->vm_flags, vma->vm_file, -nrpages);
+ remove_vm_struct(vma);
}
/*
diff --git a/mm/mprotect.c b/mm/mprotect.c
index 57577f6..b426f01 100644
--- a/mm/mprotect.c
+++ b/mm/mprotect.c
@@ -168,8 +168,8 @@ success:
vma->vm_flags = newflags;
vma->vm_page_prot = newprot;
change_protection(vma, start, end, newprot);
- __vm_stat_account(mm, oldflags, vma->vm_file, -nrpages);
- __vm_stat_account(mm, newflags, vma->vm_file, nrpages);
+ vm_stat_account(mm, oldflags, vma->vm_file, -nrpages);
+ vm_stat_account(mm, newflags, vma->vm_file, nrpages);
return 0;
fail:
diff --git a/mm/mremap.c b/mm/mremap.c
index f343fc7..55df8f5 100644
--- a/mm/mremap.c
+++ b/mm/mremap.c
@@ -233,7 +233,7 @@ static unsigned long move_vma(struct vm_area_struct *vma,
* since do_munmap() will decrement it by old_len == new_len
*/
mm->total_vm += new_len >> PAGE_SHIFT;
- __vm_stat_account(mm, vma->vm_flags, vma->vm_file, new_len>>PAGE_SHIFT);
+ vm_stat_account(mm, vma->vm_flags, vma->vm_file, new_len>>PAGE_SHIFT);
if (do_munmap(mm, old_addr, old_len) < 0) {
/* OOM: unable to split vma, just get accounts right */
@@ -384,7 +384,7 @@ unsigned long do_mremap(unsigned long addr,
addr + new_len, vma->vm_pgoff, NULL);
current->mm->total_vm += pages;
- __vm_stat_account(vma->vm_mm, vma->vm_flags,
+ vm_stat_account(vma->vm_mm, vma->vm_flags,
vma->vm_file, pages);
if (vma->vm_flags & VM_LOCKED) {
current->mm->locked_vm += pages;
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