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Message-Id: <20210830235927.6443-10-rick.p.edgecombe@intel.com>
Date: Mon, 30 Aug 2021 16:59:17 -0700
From: Rick Edgecombe <rick.p.edgecombe@...el.com>
To: dave.hansen@...el.com,
luto@...nel.org,
peterz@...radead.org,
x86@...nel.org,
akpm@...ux-foundation.org,
keescook@...omium.org,
shakeelb@...gle.com,
vbabka@...e.cz,
rppt@...nel.org
Cc: Rick Edgecombe <rick.p.edgecombe@...el.com>,
linux-mm@...ck.org,
linux-hardening@...r.kernel.org,
kernel-hardening@...ts.openwall.com,
ira.weiny@...el.com,
dan.j.williams@...el.com,
linux-kernel@...r.kernel.org
Subject: [RFC PATCH v2 09/19] x86/mm: Support GFP_ATOMIC in alloc_table_node()
For GFP_ATOMIC in alloc_table/_node(), use get_grouped_page_atomic().
Signed-off-by: Rick Edgecombe <rick.p.edgecombe@...el.com>
---
arch/x86/mm/pgtable.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/arch/x86/mm/pgtable.c b/arch/x86/mm/pgtable.c
index ef0b4ce95522..e65d69ad6e0c 100644
--- a/arch/x86/mm/pgtable.c
+++ b/arch/x86/mm/pgtable.c
@@ -52,7 +52,10 @@ struct page *alloc_table(gfp_t gfp)
return table;
}
- table = get_grouped_page(numa_node_id(), &gpc_pks);
+ if (gfp & GFP_ATOMIC)
+ table = get_grouped_page_atomic(numa_node_id(), &gpc_pks);
+ else
+ table = get_grouped_page(numa_node_id(), &gpc_pks);
if (!table)
return NULL;
__SetPageTable(table);
--
2.17.1
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