All of lore.kernel.org
 help / color / mirror / Atom feed
From: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
To: Dan Williams <dan.j.williams@intel.com>
Cc: "linux-fsdevel@vger.kernel.org" <linux-fsdevel@vger.kernel.org>,
	"linux-mm@kvack.org" <linux-mm@kvack.org>,
	"hch@lst.de" <hch@lst.de>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"linux-nvdimm@lists.01.org" <linux-nvdimm@lists.01.org>
Subject: Re: [PATCH v6 05/13] mm, madvise_inject_error: Disable MADV_SOFT_OFFLINE for ZONE_DEVICE pages
Date: Tue, 17 Jul 2018 06:47:37 +0000	[thread overview]
Message-ID: <20180717064736.GA27953@hori1.linux.bs1.fc.nec.co.jp> (raw)
In-Reply-To: <153154379606.34503.17311881160518829077.stgit@dwillia2-desk3.amr.corp.intel.com>

On Fri, Jul 13, 2018 at 09:49:56PM -0700, Dan Williams wrote:
> Given that dax / device-mapped pages are never subject to page
> allocations remove them from consideration by the soft-offline
> mechanism.
> 
> Reported-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
> ---
>  mm/memory-failure.c |    8 ++++++++
>  1 file changed, 8 insertions(+)
> 
> diff --git a/mm/memory-failure.c b/mm/memory-failure.c
> index 9d142b9b86dc..988f977db3d2 100644
> --- a/mm/memory-failure.c
> +++ b/mm/memory-failure.c
> @@ -1751,6 +1751,14 @@ int soft_offline_page(struct page *page, int flags)
>  	int ret;
>  	unsigned long pfn = page_to_pfn(page);
>  
> +	if (is_zone_device_page(page)) {
> +		pr_debug_ratelimited("soft_offline: %#lx page is device page\n",
> +				pfn);
> +		if (flags & MF_COUNT_INCREASED)
> +			put_page(page);

put_hwpoison_page(), which is just an alias of put_page(), is better
for consistency.
With this adjustment, feel free to add my ack.

Acked-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>

Thanks,
Naoya Horiguchi

> +		return -EIO;
> +	}
> +
>  	if (PageHWPoison(page)) {
>  		pr_info("soft offline: %#lx page already poisoned\n", pfn);
>  		if (flags & MF_COUNT_INCREASED)
> 
> 
_______________________________________________
Linux-nvdimm mailing list
Linux-nvdimm@lists.01.org
https://lists.01.org/mailman/listinfo/linux-nvdimm

WARNING: multiple messages have this Message-ID (diff)
From: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
To: Dan Williams <dan.j.williams@intel.com>
Cc: "linux-nvdimm@lists.01.org" <linux-nvdimm@lists.01.org>,
	"hch@lst.de" <hch@lst.de>,
	"linux-fsdevel@vger.kernel.org" <linux-fsdevel@vger.kernel.org>,
	"linux-mm@kvack.org" <linux-mm@kvack.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v6 05/13] mm, madvise_inject_error: Disable MADV_SOFT_OFFLINE for ZONE_DEVICE pages
Date: Tue, 17 Jul 2018 06:47:37 +0000	[thread overview]
Message-ID: <20180717064736.GA27953@hori1.linux.bs1.fc.nec.co.jp> (raw)
In-Reply-To: <153154379606.34503.17311881160518829077.stgit@dwillia2-desk3.amr.corp.intel.com>

On Fri, Jul 13, 2018 at 09:49:56PM -0700, Dan Williams wrote:
> Given that dax / device-mapped pages are never subject to page
> allocations remove them from consideration by the soft-offline
> mechanism.
> 
> Reported-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
> ---
>  mm/memory-failure.c |    8 ++++++++
>  1 file changed, 8 insertions(+)
> 
> diff --git a/mm/memory-failure.c b/mm/memory-failure.c
> index 9d142b9b86dc..988f977db3d2 100644
> --- a/mm/memory-failure.c
> +++ b/mm/memory-failure.c
> @@ -1751,6 +1751,14 @@ int soft_offline_page(struct page *page, int flags)
>  	int ret;
>  	unsigned long pfn = page_to_pfn(page);
>  
> +	if (is_zone_device_page(page)) {
> +		pr_debug_ratelimited("soft_offline: %#lx page is device page\n",
> +				pfn);
> +		if (flags & MF_COUNT_INCREASED)
> +			put_page(page);

put_hwpoison_page(), which is just an alias of put_page(), is better
for consistency.
With this adjustment, feel free to add my ack.

Acked-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>

Thanks,
Naoya Horiguchi

> +		return -EIO;
> +	}
> +
>  	if (PageHWPoison(page)) {
>  		pr_info("soft offline: %#lx page already poisoned\n", pfn);
>  		if (flags & MF_COUNT_INCREASED)
> 
> 

  reply	other threads:[~2018-07-17  6:49 UTC|newest]

Thread overview: 58+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-07-14  4:49 [PATCH v6 00/13] mm: Teach memory_failure() about ZONE_DEVICE pages Dan Williams
2018-07-14  4:49 ` Dan Williams
2018-07-14  4:49 ` [PATCH v6 01/13] device-dax: Convert to vmf_insert_mixed and vm_fault_t Dan Williams
2018-07-14  4:49   ` Dan Williams
2018-07-14  4:49 ` [PATCH v6 02/13] device-dax: Enable page_mapping() Dan Williams
2018-07-14  4:49   ` Dan Williams
2018-07-14  4:49 ` [PATCH v6 03/13] device-dax: Set page->index Dan Williams
2018-07-14  4:49   ` Dan Williams
2018-07-14  4:49 ` [PATCH v6 04/13] filesystem-dax: " Dan Williams
2018-07-14  4:49   ` Dan Williams
2018-07-14  4:49 ` [PATCH v6 05/13] mm, madvise_inject_error: Disable MADV_SOFT_OFFLINE for ZONE_DEVICE pages Dan Williams
2018-07-14  4:49   ` Dan Williams
2018-07-17  6:47   ` Naoya Horiguchi [this message]
2018-07-17  6:47     ` Naoya Horiguchi
2018-07-14  4:50 ` [PATCH v6 06/13] mm, dev_pagemap: Do not clear ->mapping on final put Dan Williams
2018-07-14  4:50   ` Dan Williams
2018-07-14  4:50   ` Dan Williams
2018-07-23 16:12   ` Dave Jiang
2018-07-23 16:12     ` Dave Jiang
2018-07-23 16:12     ` Dave Jiang
2018-07-23 16:23     ` Jerome Glisse
2018-07-23 16:23       ` Jerome Glisse
2018-07-23 16:23       ` Jerome Glisse
2018-07-23 16:23       ` Jerome Glisse
2018-07-14  4:50 ` [PATCH v6 07/13] mm, madvise_inject_error: Let memory_failure() optionally take a page reference Dan Williams
2018-07-14  4:50   ` Dan Williams
2018-07-17  6:52   ` Naoya Horiguchi
2018-07-14  4:50 ` [PATCH v6 08/13] mm, memory_failure: Collect mapping size in collect_procs() Dan Williams
2018-07-14  4:50   ` Dan Williams
2018-07-14  4:50 ` [PATCH v6 09/13] filesystem-dax: Introduce dax_lock_mapping_entry() Dan Williams
2018-07-14  4:50   ` Dan Williams
2018-08-06  9:21   ` Jan Kara
2018-08-06  9:21     ` Jan Kara
2018-07-14  4:50 ` [PATCH v6 10/13] mm, memory_failure: Teach memory_failure() about dev_pagemap pages Dan Williams
2018-07-14  4:50   ` Dan Williams
2018-07-14  4:50   ` Dan Williams
2018-08-06  9:27   ` Jan Kara
2018-08-06  9:27     ` Jan Kara
2018-08-06  9:27     ` Jan Kara
2018-08-06  9:27     ` Jan Kara
2018-07-14  4:50 ` [PATCH v6 11/13] x86/mm/pat: Prepare {reserve, free}_memtype() for "decoy" addresses Dan Williams
2018-07-14  4:50   ` [v6,11/13] " Dan Williams
2018-07-14  4:50   ` [PATCH v6 11/13] " Dan Williams
2018-07-24  7:36   ` Ingo Molnar
2018-07-24  7:36     ` [v6,11/13] " Ingo Molnar
2018-07-24  7:36     ` [PATCH v6 11/13] " Ingo Molnar
2018-07-24 15:46     ` Dave Jiang
2018-07-24 15:46       ` [v6,11/13] " Dave Jiang
2018-07-24 15:46       ` [PATCH v6 11/13] " Dave Jiang
2018-07-14  4:50 ` [PATCH v6 12/13] x86/memory_failure: Introduce {set, clear}_mce_nospec() Dan Williams
2018-07-14  4:50   ` [v6,12/13] " Dan Williams
2018-07-14  4:50   ` [PATCH v6 12/13] " Dan Williams
2018-07-14  4:50 ` [PATCH v6 13/13] libnvdimm, pmem: Restore page attributes when clearing errors Dan Williams
2018-07-14  4:50   ` Dan Williams
2018-07-19 17:57 ` [PATCH v6 00/13] mm: Teach memory_failure() about ZONE_DEVICE pages Dave Jiang
2018-07-19 17:57   ` Dave Jiang
2018-07-24  7:39   ` Ingo Molnar
2018-07-24  7:39     ` Ingo Molnar

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=20180717064736.GA27953@hori1.linux.bs1.fc.nec.co.jp \
    --to=n-horiguchi@ah.jp.nec.com \
    --cc=dan.j.williams@intel.com \
    --cc=hch@lst.de \
    --cc=linux-fsdevel@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-mm@kvack.org \
    --cc=linux-nvdimm@lists.01.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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.