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sparc64: kill page table quicklists

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With the recent mmu_gather changes that included generic RCU freeing of
page-tables, it is now quite straightforward to implement gup_fast() on
sparc64.

This patch:

Remove the page table quicklists.  They are pointless and make it harder
to use RCU page table freeing and share code with other architectures.

BTW, this is the second time this has happened, see commit 3c93646524
("[SPARC64]: Kill pgtable quicklists and use SLAB.")

Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
David S. Miller
2011-07-25 17:12:20 -07:00
committed by Linus Torvalds
parent c15bef3099
commit 4dedbf8dc1
3 changed files with 26 additions and 21 deletions
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11
arch/sparc/mm/tsb.c
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@ -236,6 +236,8 @@ static void setup_tsb_params(struct mm_struct *mm, unsigned long tsb_idx, unsign
}
}
struct kmem_cache *pgtable_cache __read_mostly;
static struct kmem_cache *tsb_caches[8] __read_mostly;
static const char *tsb_cache_names[8] = {
@ -253,6 +255,15 @@ void __init pgtable_cache_init(void)
{
unsigned long i;
pgtable_cache = kmem_cache_create("pgtable_cache",
PAGE_SIZE, PAGE_SIZE,
0,
_clear_page);
if (!pgtable_cache) {
prom_printf("pgtable_cache_init(): Could not create!\n");
prom_halt();
}
for (i = 0; i < 8; i++) {
unsigned long size = 8192 << i;
const char *name = tsb_cache_names[i];