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[PATCH] lower VM_DONTCOPY total_vm 

dup_mmap of a VM_DONTCOPY vma forgot to lower the child's total_vm.  (But
no way does this account for the recent report of total_vm seen too low.)

Signed-off-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Hugh Dickins 2005-07-12 13:58:09 -07:00 committed by Linus Torvalds
parent 70d1d47c47
commit 3b6bfcdb11
1 changed files with 3 additions and 1 deletions
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4
kernel/fork.c
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@ -208,8 +208,10 @@ static inline int dup_mmap(struct mm_struct * mm, struct mm_struct * oldmm)
struct file *file; struct file *file;
if (mpnt->vm_flags & VM_DONTCOPY) { 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,
-vma_pages(mpnt)); -pages);
continue; continue;
} }
charge = 0; charge = 0;