From: Michel Lespinasse <michel@lespinasse.org>
To: Linux-MM <linux-mm@kvack.org>,
Linux-Kernel <linux-kernel@vger.kernel.org>
Cc: Laurent Dufour <ldufour@linux.ibm.com>,
Peter Zijlstra <peterz@infradead.org>,
Michal Hocko <mhocko@suse.com>,
Matthew Wilcox <willy@infradead.org>,
Rik van Riel <riel@surriel.com>,
Paul McKenney <paulmck@kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
Suren Baghdasaryan <surenb@google.com>,
Joel Fernandes <joelaf@google.com>,
Andy Lutomirski <luto@kernel.org>,
Michel Lespinasse <michel@lespinasse.org>
Subject: [PATCH 04/29] do_anonymous_page: use update_mmu_tlb()
Date: Fri, 30 Apr 2021 12:52:05 -0700 [thread overview]
Message-ID: <20210430195232.30491-5-michel@lespinasse.org> (raw)
In-Reply-To: <20210430195232.30491-1-michel@lespinasse.org>
update_mmu_tlb() can be used instead of update_mmu_cache() when the
page fault handler detects that it lost the race to another page fault.
(TODO double check with Bibo Mao <maobibo@loongson.cn>)
Signed-off-by: Michel Lespinasse <michel@lespinasse.org>
---
mm/memory.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/memory.c b/mm/memory.c
index 550405fc3b5e..59ff65cb3ab4 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -3567,7 +3567,7 @@ static vm_fault_t do_anonymous_page(struct vm_fault *vmf)
vmf->pte = pte_offset_map_lock(vma->vm_mm, vmf->pmd, vmf->address,
&vmf->ptl);
if (!pte_none(*vmf->pte)) {
- update_mmu_cache(vma, vmf->address, vmf->pte);
+ update_mmu_tlb(vma, vmf->address, vmf->pte);
goto release;
}
--
2.20.1
next prev parent reply other threads:[~2021-04-30 19:52 UTC|newest]
Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-30 19:52 [PATCH 00/29] Speculative page faults (anon vmas only) Michel Lespinasse
2021-04-30 19:52 ` [PATCH 01/29] mm: export dump_mm Michel Lespinasse
2021-04-30 19:52 ` [PATCH 02/29] mmap locking API: mmap_lock_is_contended returns a bool Michel Lespinasse
2021-04-30 19:52 ` [PATCH 03/29] mmap locking API: name the return values Michel Lespinasse
2021-04-30 19:52 ` Michel Lespinasse [this message]
2021-06-10 0:38 ` [PATCH 04/29] do_anonymous_page: use update_mmu_tlb() Suren Baghdasaryan
2021-04-30 19:52 ` [PATCH 05/29] do_anonymous_page: reduce code duplication Michel Lespinasse
2021-04-30 19:52 ` [PATCH 06/29] mm: introduce CONFIG_SPECULATIVE_PAGE_FAULT Michel Lespinasse
2021-04-30 19:52 ` [PATCH 07/29] x86/mm: define ARCH_SUPPORTS_SPECULATIVE_PAGE_FAULT Michel Lespinasse
2021-04-30 19:52 ` [PATCH 08/29] mm: add FAULT_FLAG_SPECULATIVE flag Michel Lespinasse
2021-06-10 0:58 ` Suren Baghdasaryan
2021-04-30 19:52 ` [PATCH 09/29] mm: add do_handle_mm_fault() Michel Lespinasse
2021-04-30 19:52 ` [PATCH 10/29] mm: add per-mm mmap sequence counter for speculative page fault handling Michel Lespinasse
2021-04-30 19:52 ` [PATCH 11/29] mm: rcu safe vma freeing Michel Lespinasse
2021-04-30 19:52 ` [PATCH 12/29] x86/mm: attempt speculative mm faults first Michel Lespinasse
2021-04-30 19:52 ` [PATCH 13/29] mm: add speculative_page_walk_begin() and speculative_page_walk_end() Michel Lespinasse
2021-04-30 19:52 ` [PATCH 14/29] mm: refactor __handle_mm_fault() / handle_pte_fault() Michel Lespinasse
2021-04-30 19:52 ` [PATCH 15/29] mm: implement speculative handling in __handle_mm_fault() Michel Lespinasse
2021-04-30 19:52 ` [PATCH 16/29] mm: add pte_map_lock() and pte_spinlock() Michel Lespinasse
2021-04-30 23:33 ` kernel test robot
2021-04-30 23:45 ` kernel test robot
2021-04-30 19:52 ` [PATCH 17/29] mm: implement speculative handling in do_anonymous_page() Michel Lespinasse
2021-04-30 19:52 ` [PATCH 18/29] mm: enable speculative fault handling through do_anonymous_page() Michel Lespinasse
2021-04-30 19:52 ` [PATCH 19/29] mm: implement speculative handling in do_numa_page() Michel Lespinasse
2021-04-30 19:52 ` [PATCH 20/29] mm: enable speculative fault " Michel Lespinasse
2021-04-30 19:52 ` [PATCH 21/29] mm: implement speculative handling in wp_page_copy() Michel Lespinasse
2021-04-30 19:52 ` [PATCH 22/29] mm: implement and enable speculative fault handling in handle_pte_fault() Michel Lespinasse
2021-04-30 19:52 ` [PATCH 23/29] mm: implement speculative handling in do_swap_page() Michel Lespinasse
2021-04-30 19:52 ` [PATCH 24/29] mm: enable speculative fault handling through do_swap_page() Michel Lespinasse
2021-04-30 19:52 ` [PATCH 25/29] mm: disable speculative faults for single threaded user space Michel Lespinasse
2021-04-30 19:52 ` [PATCH 26/29] mm: disable rcu safe vma freeing " Michel Lespinasse
2021-04-30 19:52 ` [PATCH 27/29] mm: anon spf statistics Michel Lespinasse
2021-04-30 22:52 ` kernel test robot
2021-04-30 19:52 ` [PATCH 28/29] arm64/mm: define ARCH_SUPPORTS_SPECULATIVE_PAGE_FAULT Michel Lespinasse
2021-04-30 19:52 ` [PATCH 29/29] arm64/mm: attempt speculative mm faults first Michel Lespinasse
2021-04-30 19:52 ` [PATCH 30/31] powerpc/mm: define ARCH_SUPPORTS_SPECULATIVE_PAGE_FAULT Michel Lespinasse
2021-04-30 19:52 ` [PATCH 31/31] powerpc/mm: attempt speculative mm faults first Michel Lespinasse
2021-04-30 22:46 ` [PATCH 00/29] Speculative page faults (anon vmas only) Michel Lespinasse
2021-05-03 18:11 ` Michel Lespinasse
2021-05-17 17:57 ` Paul E. McKenney
2021-05-20 22:10 ` Suren Baghdasaryan
2021-05-20 23:08 ` Paul E. McKenney
2021-06-01 7:41 ` Michel Lespinasse
2021-06-01 20:18 ` Paul E. McKenney
2021-06-01 20:23 ` Paul E. McKenney
2021-06-14 7:04 ` Michel Lespinasse
2021-05-01 19:56 ` Theodore Ts'o
2021-05-01 21:19 ` Michel Lespinasse
2021-06-17 13:46 ` David Hildenbrand
2021-07-09 10:41 ` David Hildenbrand
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