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Date: Sun, 15 Aug 2021 17:40:47 +0200 From: Christoph Hellwig <hch@....de> To: Alex Sierra <alex.sierra@....com> Cc: akpm@...ux-foundation.org, Felix.Kuehling@....com, linux-mm@...ck.org, rcampbell@...dia.com, linux-ext4@...r.kernel.org, linux-xfs@...r.kernel.org, amd-gfx@...ts.freedesktop.org, dri-devel@...ts.freedesktop.org, hch@....de, jgg@...dia.com, jglisse@...hat.com, Roger Pau Monne <roger.pau@...rix.com>, Dan Williams <dan.j.williams@...el.com>, Boris Ostrovsky <boris.ostrovsky@...cle.com> Subject: Re: [PATCH v6 08/13] mm: call pgmap->ops->page_free for DEVICE_GENERIC pages 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@....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---
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