From: Christoph Hellwig <hch@lst.de>
To: Alex Sierra <alex.sierra@amd.com>
Cc: akpm@linux-foundation.org, Felix.Kuehling@amd.com,
linux-mm@kvack.org, rcampbell@nvidia.com,
linux-ext4@vger.kernel.org, linux-xfs@vger.kernel.org,
amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org,
hch@lst.de, jgg@nvidia.com, jglisse@redhat.com,
Roger Pau Monne <roger.pau@citrix.com>,
Dan Williams <dan.j.williams@intel.com>,
Boris Ostrovsky <boris.ostrovsky@oracle.com>
Subject: Re: [PATCH v6 08/13] mm: call pgmap->ops->page_free for DEVICE_GENERIC pages
Date: Sun, 15 Aug 2021 17:40:47 +0200 [thread overview]
Message-ID: <20210815154047.GC32384@lst.de> (raw)
In-Reply-To: <20210813063150.2938-9-alex.sierra@amd.com>
On Fri, Aug 13, 2021 at 01:31:45AM -0500, Alex Sierra wrote:
> Add MEMORY_DEVICE_GENERIC case to free_zone_device_page callback.
> Device generic type memory case is now able to free its pages properly.
How is this going to work for the two existing MEMORY_DEVICE_GENERIC
that now change behavior? And which don't have a ->page_free callback
at all?
>
> Signed-off-by: Alex Sierra <alex.sierra@amd.com>
> ---
> mm/memremap.c | 5 +++--
> 1 file changed, 3 insertions(+), 2 deletions(-)
>
> diff --git a/mm/memremap.c b/mm/memremap.c
> index 5aa8163fd948..5773e15b6ac9 100644
> --- a/mm/memremap.c
> +++ b/mm/memremap.c
> @@ -459,7 +459,7 @@ struct dev_pagemap *get_dev_pagemap(unsigned long pfn,
> EXPORT_SYMBOL_GPL(get_dev_pagemap);
>
> #ifdef CONFIG_DEV_PAGEMAP_OPS
> -static void free_device_private_page(struct page *page)
> +static void free_device_page(struct page *page)
> {
>
> __ClearPageWaiters(page);
> @@ -498,7 +498,8 @@ void free_zone_device_page(struct page *page)
> wake_up_var(&page->_refcount);
> return;
> case MEMORY_DEVICE_PRIVATE:
> - free_device_private_page(page);
> + case MEMORY_DEVICE_GENERIC:
> + free_device_page(page);
> return;
> default:
> return;
> --
> 2.32.0
---end quoted text---
next prev parent reply other threads:[~2021-08-15 15:40 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-13 6:31 [PATCH v6 00/13] Support DEVICE_GENERIC memory in migrate_vma_* Alex Sierra
2021-08-13 6:31 ` [PATCH v6 01/13] ext4/xfs: add page refcount helper Alex Sierra
2021-08-15 9:01 ` Christoph Hellwig
2021-08-13 6:31 ` [PATCH v6 02/13] mm: remove extra ZONE_DEVICE struct page refcount Alex Sierra
2021-08-15 15:37 ` Christoph Hellwig
2021-08-15 20:40 ` John Hubbard
2021-08-16 18:56 ` Felix Kuehling
2021-08-20 6:33 ` Jerome Glisse
2021-08-18 0:01 ` Ralph Campbell
2021-08-18 0:35 ` Felix Kuehling
2021-08-18 19:28 ` Ralph Campbell
2021-08-19 18:00 ` Sierra Guiza, Alejandro (Alex)
2021-08-19 19:59 ` Felix Kuehling
2021-08-20 4:40 ` Christoph Hellwig
2021-08-20 7:17 ` Jerome Glisse
2021-08-20 4:56 ` Christoph Hellwig
2021-08-13 6:31 ` [PATCH v6 03/13] kernel: resource: lookup_resource as exported symbol Alex Sierra
2021-08-13 6:31 ` [PATCH v6 04/13] drm/amdkfd: add SPM support for SVM Alex Sierra
2021-08-15 9:10 ` Christoph Hellwig
2021-08-16 18:54 ` Felix Kuehling
2021-08-17 5:47 ` Christoph Hellwig
2021-08-13 6:31 ` [PATCH v6 05/13] drm/amdkfd: generic type as sys mem on migration to ram Alex Sierra
2021-08-15 15:38 ` Christoph Hellwig
2021-08-16 19:53 ` Sierra Guiza, Alejandro (Alex)
2021-08-16 22:06 ` Zeng, Oak
2021-08-17 0:42 ` Felix Kuehling
2021-08-17 5:49 ` Christoph Hellwig
2021-08-13 6:31 ` [PATCH v6 06/13] include/linux/mm.h: helpers to check zone device generic type Alex Sierra
2021-08-15 9:16 ` Christoph Hellwig
2021-08-13 6:31 ` [PATCH v6 07/13] mm: add generic type support to migrate_vma helpers Alex Sierra
2021-08-15 9:19 ` Christoph Hellwig
2021-08-13 6:31 ` [PATCH v6 08/13] mm: call pgmap->ops->page_free for DEVICE_GENERIC pages Alex Sierra
2021-08-15 15:40 ` Christoph Hellwig [this message]
2021-08-16 19:00 ` Felix Kuehling
2021-08-17 5:50 ` Christoph Hellwig
2021-08-17 15:44 ` Felix Kuehling
2021-08-20 5:05 ` Christoph Hellwig
2021-08-20 7:24 ` Jerome Glisse
2021-08-13 6:31 ` [PATCH v6 09/13] lib: test_hmm add ioctl to get zone device type Alex Sierra
2021-08-13 6:31 ` [PATCH v6 10/13] lib: test_hmm add module param for " Alex Sierra
2021-08-13 6:31 ` [PATCH v6 11/13] lib: add support for device generic type in test_hmm Alex Sierra
2021-08-13 6:31 ` [PATCH v6 12/13] tools: update hmm-test to support device generic type Alex Sierra
2021-08-13 6:31 ` [PATCH v6 13/13] tools: update test_hmm script to support SP config Alex Sierra
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