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hugetlb: allow bulk updating in hugetlb_*_quota()

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Add a second parameter 'delta' to hugetlb_get_quota and hugetlb_put_quota to
allow bulk updating of the sbinfo->free_blocks counter.  This will be used by
the next patch in the series.

Signed-off-by: Adam Litke <[email protected]>
Cc: Ken Chen <[email protected]>
Cc: Andy Whitcroft <[email protected]>
Cc: Dave Hansen <[email protected]>
Cc: David Gibson <[email protected]>
Cc: William Lee Irwin III <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Adam Litke 2007-11-14 16:59:41 -08:00 • committed by Linus Torvalds
commit 9a119c056d
3 changed files with 9 additions and 9 deletions
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4
mm/hugetlb.c
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@ -132,7 +132,7 @@ static void free_huge_page(struct page *page)
}
spin_unlock(&hugetlb_lock);
if (mapping)
hugetlb_put_quota(mapping);
hugetlb_put_quota(mapping, 1);
set_page_private(page, 0);
}
@ -390,7 +390,7 @@ static struct page *alloc_huge_page(struct vm_area_struct *vma,
struct page *page;
struct address_space *mapping = vma->vm_file->f_mapping;
if (hugetlb_get_quota(mapping))
if (hugetlb_get_quota(mapping, 1))
return ERR_PTR(-VM_FAULT_SIGBUS);
if (vma->vm_flags & VM_MAYSHARE)