From: Joao Martins <joao.m.martins@oracle.com>
To: linux-mm@kvack.org
Cc: Dan Williams <dan.j.williams@intel.com>,
Vishal Verma <vishal.l.verma@intel.com>,
Dave Jiang <dave.jiang@intel.com>,
Naoya Horiguchi <naoya.horiguchi@nec.com>,
Matthew Wilcox <willy@infradead.org>,
Jason Gunthorpe <jgg@ziepe.ca>,
John Hubbard <jhubbard@nvidia.com>,
Jane Chu <jane.chu@oracle.com>,
Muchun Song <songmuchun@bytedance.com>,
Mike Kravetz <mike.kravetz@oracle.com>,
Andrew Morton <akpm@linux-foundation.org>,
Jonathan Corbet <corbet@lwn.net>,
nvdimm@lists.linux.dev, linux-doc@vger.kernel.org,
Joao Martins <joao.m.martins@oracle.com>
Subject: [PATCH v2 10/14] device-dax: use ALIGN() for determining pgoff
Date: Thu, 17 Jun 2021 19:45:03 +0100 [thread overview]
Message-ID: <20210617184507.3662-11-joao.m.martins@oracle.com> (raw)
In-Reply-To: <20210617184507.3662-1-joao.m.martins@oracle.com>
Rather than calculating @pgoff manually, switch to ALIGN() instead.
Suggested-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Joao Martins <joao.m.martins@oracle.com>
---
drivers/dax/device.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/dax/device.c b/drivers/dax/device.c
index dd8222a42808..0b82159b3564 100644
--- a/drivers/dax/device.c
+++ b/drivers/dax/device.c
@@ -234,8 +234,8 @@ static vm_fault_t dev_dax_huge_fault(struct vm_fault *vmf,
* mapped. No need to consider the zero page, or racing
* conflicting mappings.
*/
- pgoff = linear_page_index(vmf->vma, vmf->address
- & ~(fault_size - 1));
+ pgoff = linear_page_index(vmf->vma,
+ ALIGN(vmf->address, fault_size));
for (i = 0; i < fault_size / PAGE_SIZE; i++) {
struct page *page;
--
2.17.1
next prev parent reply other threads:[~2021-06-17 18:46 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-17 18:44 [PATCH v2 00/14] mm, sparse-vmemmap: Introduce compound pagemaps Joao Martins
2021-06-17 18:44 ` [PATCH v2 01/14] memory-failure: fetch compound_head after pgmap_pfn_valid() Joao Martins
2021-06-20 23:56 ` HORIGUCHI NAOYA(堀口 直也)
2021-06-21 13:50 ` Joao Martins
2021-06-17 18:44 ` [PATCH v2 02/14] mm/page_alloc: split prep_compound_page into head and tail subparts Joao Martins
2021-07-13 0:02 ` Mike Kravetz
2021-07-13 1:11 ` Joao Martins
2021-06-17 18:44 ` [PATCH v2 03/14] mm/page_alloc: refactor memmap_init_zone_device() page init Joao Martins
2021-06-17 18:44 ` [PATCH v2 04/14] mm/memremap: add ZONE_DEVICE support for compound pages Joao Martins
2021-06-17 18:44 ` [PATCH v2 05/14] mm/sparse-vmemmap: add a pgmap argument to section activation Joao Martins
2021-06-17 18:44 ` [PATCH v2 06/14] mm/sparse-vmemmap: refactor core of vmemmap_populate_basepages() to helper Joao Martins
2021-06-17 18:45 ` [PATCH v2 07/14] mm/hugetlb_vmemmap: move comment block to Documentation/vm Joao Martins
2021-06-21 13:12 ` [External] " Muchun Song
2021-06-21 13:42 ` Joao Martins
2021-07-13 0:14 ` Mike Kravetz
2021-07-13 1:11 ` Joao Martins
2021-06-17 18:45 ` [PATCH v2 08/14] mm/sparse-vmemmap: populate compound pagemaps Joao Martins
2021-06-17 18:45 ` [PATCH v2 09/14] mm/page_alloc: reuse tail struct pages for " Joao Martins
2021-06-17 18:45 ` Joao Martins [this message]
2021-06-17 18:45 ` [PATCH v2 11/14] device-dax: ensure dev_dax->pgmap is valid for dynamic devices Joao Martins
2021-06-17 18:45 ` [PATCH v2 12/14] device-dax: compound pagemap support Joao Martins
2021-06-17 18:45 ` [PATCH v2 13/14] mm/gup: grab head page refcount once for group of subpages Joao Martins
2021-06-17 18:45 ` [PATCH v2 14/14] mm/sparse-vmemmap: improve memory savings for compound pud geometry Joao Martins
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