From: Laurent Dufour <ldufour@linux.vnet.ibm.com>
To: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Cc: paulmck@linux.vnet.ibm.com, peterz@infradead.org,
akpm@linux-foundation.org, kirill@shutemov.name,
ak@linux.intel.com, mhocko@kernel.org, dave@stgolabs.net,
jack@suse.cz, Matthew Wilcox <willy@infradead.org>,
benh@kernel.crashing.org, mpe@ellerman.id.au, paulus@samba.org,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>,
hpa@zytor.com, Will Deacon <will.deacon@arm.com>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org,
haren@linux.vnet.ibm.com, khandual@linux.vnet.ibm.com,
npiggin@gmail.com, bsingharora@gmail.com,
Tim Chen <tim.c.chen@linux.intel.com>,
linuxppc-dev@lists.ozlabs.org, x86@kernel.org
Subject: Re: [PATCH v2 14/20] mm: Provide speculative fault infrastructure
Date: Fri, 25 Aug 2017 10:52:45 +0200 [thread overview]
Message-ID: <e91cd0ad-0b59-0d93-e8c8-8a82a26015ec@linux.vnet.ibm.com> (raw)
In-Reply-To: <20170820121155.GA624@tigerII.localdomain>
On 20/08/2017 14:11, Sergey Senozhatsky wrote:
> On (08/18/17 00:05), Laurent Dufour wrote:
> [..]
>> + /*
>> + * MPOL_INTERLEAVE implies additional check in mpol_misplaced() which
>> + * are not compatible with the speculative page fault processing.
>> + */
>> + pol = __get_vma_policy(vma, address);
>> + if (!pol)
>> + pol = get_task_policy(current);
>> + if (pol && pol->mode == MPOL_INTERLEAVE)
>> + goto unlock;
>
> include/linux/mempolicy.h defines
>
> struct mempolicy *get_task_policy(struct task_struct *p);
> struct mempolicy *__get_vma_policy(struct vm_area_struct *vma,
> unsigned long addr);
>
> only for CONFIG_NUMA configs.
Thanks Sergey, I'll add #ifdef around this block.
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org. For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>
next prev parent reply other threads:[~2017-08-25 8:53 UTC|newest]
Thread overview: 61+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-08-17 22:04 [PATCH v2 00/20] Speculative page faults Laurent Dufour
2017-08-17 22:05 ` [PATCH v2 01/20] mm: Dont assume page-table invariance during faults Laurent Dufour
2017-08-17 22:05 ` [PATCH v2 02/20] mm: Prepare for FAULT_FLAG_SPECULATIVE Laurent Dufour
2017-08-17 22:05 ` [PATCH v2 03/20] mm: Introduce pte_spinlock " Laurent Dufour
2017-08-17 22:05 ` [PATCH v2 04/20] mm: VMA sequence count Laurent Dufour
2017-08-17 22:05 ` [PATCH v2 05/20] mm: Protect VMA modifications using " Laurent Dufour
2017-08-17 22:05 ` [PATCH v2 06/20] mm: RCU free VMAs Laurent Dufour
2017-08-17 22:05 ` [PATCH v2 07/20] mm: Cache some VMA fields in the vm_fault structure Laurent Dufour
2017-08-17 22:05 ` [PATCH v2 08/20] mm: Protect SPF handler against anon_vma changes Laurent Dufour
2017-08-17 22:05 ` [PATCH v2 09/20] mm/migrate: Pass vm_fault pointer to migrate_misplaced_page() Laurent Dufour
2017-08-17 22:05 ` [PATCH v2 10/20] mm: Introduce __lru_cache_add_active_or_unevictable Laurent Dufour
2017-08-17 22:05 ` [PATCH v2 11/20] mm: Introduce __maybe_mkwrite() Laurent Dufour
2017-08-17 22:05 ` [PATCH v2 12/20] mm: Introduce __vm_normal_page() Laurent Dufour
2017-08-17 22:05 ` [PATCH v2 13/20] mm: Introduce __page_add_new_anon_rmap() Laurent Dufour
2017-08-17 22:05 ` [PATCH v2 14/20] mm: Provide speculative fault infrastructure Laurent Dufour
2017-08-20 12:11 ` Sergey Senozhatsky
2017-08-25 8:52 ` Laurent Dufour [this message]
2017-08-27 0:18 ` Kirill A. Shutemov
2017-08-28 9:37 ` Peter Zijlstra
2017-08-28 21:14 ` Benjamin Herrenschmidt
2017-08-28 22:35 ` Andi Kleen
2017-08-29 8:15 ` Peter Zijlstra
2017-08-29 8:33 ` Peter Zijlstra
2017-08-29 11:27 ` Peter Zijlstra
2017-08-29 21:19 ` Benjamin Herrenschmidt
2017-08-30 6:13 ` Peter Zijlstra
2017-08-29 7:59 ` Laurent Dufour
2017-08-29 12:04 ` Peter Zijlstra
2017-08-29 13:18 ` Laurent Dufour
2017-08-29 13:45 ` Peter Zijlstra
2017-08-30 5:03 ` Anshuman Khandual
2017-08-30 5:58 ` Peter Zijlstra
2017-08-30 9:32 ` Laurent Dufour
2017-08-31 6:55 ` Anshuman Khandual
2017-08-31 7:31 ` Peter Zijlstra
2017-08-30 9:53 ` Laurent Dufour
2017-08-30 3:48 ` Anshuman Khandual
2017-08-30 5:25 ` Anshuman Khandual
2017-08-30 8:56 ` Laurent Dufour
2017-08-17 22:05 ` [PATCH v2 15/20] mm: Try spin lock in speculative path Laurent Dufour
2017-08-17 22:05 ` [PATCH v2 16/20] mm: Adding speculative page fault failure trace events Laurent Dufour
2017-08-17 22:05 ` [PATCH v2 17/20] perf: Add a speculative page fault sw event Laurent Dufour
2017-08-21 8:55 ` Anshuman Khandual
2017-08-22 1:46 ` Michael Ellerman
2017-08-17 22:05 ` [PATCH v2 18/20] perf tools: Add support for the SPF perf event Laurent Dufour
2017-08-21 8:48 ` Anshuman Khandual
2017-08-25 8:53 ` Laurent Dufour
2017-08-17 22:05 ` [PATCH v2 19/20] x86/mm: Add speculative pagefault handling Laurent Dufour
2017-08-21 7:29 ` Anshuman Khandual
2017-08-29 14:50 ` Laurent Dufour
2017-08-29 14:58 ` Laurent Dufour
2017-08-17 22:05 ` [PATCH v2 20/20] powerpc/mm: Add speculative page fault Laurent Dufour
2017-08-21 6:58 ` Anshuman Khandual
2017-08-29 15:13 ` Laurent Dufour
2017-08-21 2:26 ` [PATCH v2 00/20] Speculative page faults Sergey Senozhatsky
2017-09-08 9:24 ` Laurent Dufour
2017-09-11 0:45 ` Sergey Senozhatsky
2017-09-11 6:28 ` Laurent Dufour
2017-08-21 6:28 ` Anshuman Khandual
2017-08-22 0:41 ` Paul E. McKenney
2017-08-25 9:41 ` Laurent Dufour
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=e91cd0ad-0b59-0d93-e8c8-8a82a26015ec@linux.vnet.ibm.com \
--to=ldufour@linux.vnet.ibm.com \
--cc=ak@linux.intel.com \
--cc=akpm@linux-foundation.org \
--cc=benh@kernel.crashing.org \
--cc=bsingharora@gmail.com \
--cc=dave@stgolabs.net \
--cc=haren@linux.vnet.ibm.com \
--cc=hpa@zytor.com \
--cc=jack@suse.cz \
--cc=khandual@linux.vnet.ibm.com \
--cc=kirill@shutemov.name \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=linuxppc-dev@lists.ozlabs.org \
--cc=mhocko@kernel.org \
--cc=mingo@redhat.com \
--cc=mpe@ellerman.id.au \
--cc=npiggin@gmail.com \
--cc=paulmck@linux.vnet.ibm.com \
--cc=paulus@samba.org \
--cc=peterz@infradead.org \
--cc=sergey.senozhatsky@gmail.com \
--cc=tglx@linutronix.de \
--cc=tim.c.chen@linux.intel.com \
--cc=will.deacon@arm.com \
--cc=willy@infradead.org \
--cc=x86@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).