[PATCH] mm: nommu use compound pages
Now that compound page handling is properly fixed in the VM, move nommu over to using compound pages rather than rolling their own refcounting. nommu vm page refcounting is broken anyway, but there is no need to have divergent code in the core VM now, nor when it gets fixed. Signed-off-by: Nick Piggin <npiggin@suse.de> Cc: David Howells <dhowells@redhat.com> (Needs testing, please). Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
committed by
Linus Torvalds
parent
0f8053a509
commit
84097518d1
@@ -159,7 +159,7 @@ void *__vmalloc(unsigned long size, gfp_t gfp_mask, pgprot_t prot)
|
||||
/*
|
||||
* kmalloc doesn't like __GFP_HIGHMEM for some reason
|
||||
*/
|
||||
return kmalloc(size, gfp_mask & ~__GFP_HIGHMEM);
|
||||
return kmalloc(size, (gfp_mask | __GFP_COMP) & ~__GFP_HIGHMEM);
|
||||
}
|
||||
|
||||
struct page * vmalloc_to_page(void *addr)
|
||||
@@ -623,7 +623,7 @@ static int do_mmap_private(struct vm_area_struct *vma, unsigned long len)
|
||||
* - note that this may not return a page-aligned address if the object
|
||||
* we're allocating is smaller than a page
|
||||
*/
|
||||
base = kmalloc(len, GFP_KERNEL);
|
||||
base = kmalloc(len, GFP_KERNEL|__GFP_COMP);
|
||||
if (!base)
|
||||
goto enomem;
|
||||
|
||||
|
Reference in New Issue
Block a user