From: steiner@sgi.com
To: akpm@osdl.org, linux-kernel@vger.kernel.org
Subject: [Patch 26/29] GRU - Add hugepage support
Date: Tue, 24 Nov 2009 09:06:23 -0600 [thread overview]
Message-ID: <20091124150758.718024000@sgi.com> (raw)
In-Reply-To: 20091124150557.082648000@sgi.com
[-- Attachment #1: uv_gru_hugepages --]
[-- Type: text/plain, Size: 946 bytes --]
From: Jack Steiner <steiner@sgi.com>
Add support for hugepages. Easier than I originally thought.
Signed-off-by: Jack Steiner <steiner@sgi.com>
---
drivers/misc/sgi-gru/grufault.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
Index: linux/drivers/misc/sgi-gru/grufault.c
===================================================================
--- linux.orig/drivers/misc/sgi-gru/grufault.c 2009-11-20 09:32:36.000000000 -0600
+++ linux/drivers/misc/sgi-gru/grufault.c 2009-11-20 09:32:38.000000000 -0600
@@ -192,10 +192,11 @@ static int non_atomic_pte_lookup(struct
{
struct page *page;
- /* ZZZ Need to handle HUGE pages */
- if (is_vm_hugetlb_page(vma))
- return -EFAULT;
+#ifdef CONFIG_HUGETLB_PAGE
+ *pageshift = is_vm_hugetlb_page(vma) ? HPAGE_SHIFT : PAGE_SHIFT;
+#else
*pageshift = PAGE_SHIFT;
+#endif
if (get_user_pages
(current, current->mm, vaddr, 1, write, 0, &page, NULL) <= 0)
return -EFAULT;
next prev parent reply other threads:[~2009-11-24 15:09 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-11-24 15:05 [Patch 00/29] GRU - GRU Updates steiner
2009-11-24 15:05 ` [Patch 01/29] GRU - Initial GRU based on blade topology steiner
2009-11-24 15:05 ` [Patch 02/29] GRU - Add comments raised in previous code reviews steiner
2009-11-24 15:06 ` [Patch 03/29] GRU - fix istatus race in GRU tlb dropin steiner
2009-11-24 15:06 ` [Patch 04/29] GRU - handle blades without memory steiner
2009-11-24 15:06 ` [Patch 05/29] GRU - allow users to specify gru chiplet 1 steiner
2009-11-24 15:06 ` [Patch 06/29] GRU - allow users to specify gru chiplet 2 steiner
2009-11-24 15:06 ` [Patch 07/29] GRU - allow users to specify gru chiplet 3 steiner
2009-11-24 15:06 ` [Patch 08/29] GRU - fix bug in module unload steiner
2009-11-24 15:06 ` [Patch 09/29] GRU - Improve messages for malfunctioning GRUs steiner
2009-11-24 15:06 ` [Patch 10/29] GRU - Support 64-bit GRU addresses steiner
2009-11-24 15:06 ` [Patch 11/29] GRU - Handle failures to mmu_notifier_register steiner
2009-11-24 15:06 ` [Patch 12/29] GRU - Add debug option for cache flushing steiner
2009-11-24 15:06 ` [Patch 13/29] GRU - Add test for gru_copy_gpa steiner
2009-11-24 15:06 ` [Patch 14/29] GRU - Check for valid vma steiner
2009-11-24 15:06 ` [Patch 15/29] GRU - Fix prefetch and speculation bugs steiner
2009-11-24 15:06 ` [Patch 16/29] GRU - Update irq infrastructure steiner
2009-11-24 15:06 ` [Patch 17/29] GRU - Add additional GRU statistics steiner
2009-11-24 15:06 ` [Patch 18/29] GRU - expicitly set instruction status to active steiner
2009-11-24 15:06 ` [Patch 19/29] GRU - preload tlb for bcopy instructions steiner
2009-11-24 15:06 ` [Patch 20/29] GRU - Fix bug in exception handling steiner
2009-11-24 15:06 ` [Patch 21/29] GRU - Add symbolic names for GRU error code steiner
2009-11-24 15:06 ` [Patch 22/29] GRU - Remove stray local_irq_enable steiner
2009-11-24 15:06 ` [Patch 23/29] GRU - check for correct GRU chiplet assignment steiner
2009-11-24 15:06 ` [Patch 24/29] GRU - Update GRU structures to match latest hardware spec steiner
2009-11-24 15:06 ` [Patch 25/29] GRU - Fix bug in allocation of kernel contexts steiner
2009-11-24 15:06 ` steiner [this message]
2009-11-24 15:06 ` [Patch 27/29] GRU - Fix GRU interrupt race at deallocate steiner
2009-11-24 15:06 ` [Patch 28/29] GRU - improve GRU TLB dropin statistics steiner
2009-11-24 15:06 ` [Patch 29/29] GRU - update driver version number steiner
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