| Message ID | 1374763339-18555-1-git-send-email-luis.henriques@canonical.com |
|---|---|
| State | New |
| Headers | show |
diff --git a/arch/sparc/mm/tlb.c b/arch/sparc/mm/tlb.c index afd021e..072f553 100644 --- a/arch/sparc/mm/tlb.c +++ b/arch/sparc/mm/tlb.c @@ -115,8 +115,8 @@ no_cache_flush: } if (!tb->active) { - global_flush_tlb_page(mm, vaddr); flush_tsb_user_page(mm, vaddr); + global_flush_tlb_page(mm, vaddr); goto out; }
This is a note to let you know that I have just added a patch titled sparc: tsb must be flushed before tlb to the linux-3.5.y-queue branch of the 3.5.y.z extended stable tree which can be found at: http://kernel.ubuntu.com/git?p=ubuntu/linux.git;a=shortlog;h=refs/heads/linux-3.5.y-queue If you, or anyone else, feels it should not be added to this tree, please reply to this email. For more information about the 3.5.y.z tree, see https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable Thanks. -Luis ------ From b38ec86341ef7c243d827186870a9cca348eb6f0 Mon Sep 17 00:00:00 2001 From: Dave Kleikamp <dave.kleikamp@oracle.com> Date: Tue, 18 Jun 2013 09:05:36 -0500 Subject: [PATCH] sparc: tsb must be flushed before tlb commit 23a01138efe216f8084cfaa74b0b90dd4b097441 upstream. This fixes a race where a cpu may re-load a tlb from a stale tsb right after it has been flushed by a remote function call. I still see some instability when stressing the system with parallel kernel builds while creating memory pressure by writing to /proc/sys/vm/nr_hugepages, but this patch improves the stability significantly. Signed-off-by: Dave Kleikamp <dave.kleikamp@oracle.com> Acked-by: Bob Picco <bob.picco@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net> [ luis: backported to 3.5: adjusted context ] Signed-off-by: Luis Henriques <luis.henriques@canonical.com> --- arch/sparc/mm/tlb.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) -- 1.8.1.2