From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andrew Morton Subject: [patch 041/155] mm/gup: pass gup flags to two more routines Date: Wed, 01 Apr 2020 21:05:22 -0700 Message-ID: <20200402040522.sqqriIxBV%akpm@linux-foundation.org> References: <20200401210155.09e3b9742e1c6e732f5a7250@linux-foundation.org> Reply-To: linux-kernel@vger.kernel.org Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Return-path: Received: from mail.kernel.org ([198.145.29.99]:52524 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725789AbgDBEFY (ORCPT ); Thu, 2 Apr 2020 00:05:24 -0400 In-Reply-To: <20200401210155.09e3b9742e1c6e732f5a7250@linux-foundation.org> Sender: mm-commits-owner@vger.kernel.org List-Id: mm-commits@vger.kernel.org To: akpm@linux-foundation.org, corbet@lwn.net, dan.j.williams@intel.com, david@fromorbit.com, hch@infradead.org, ira.weiny@intel.com, jack@suse.cz, jgg@ziepe.ca, jglisse@redhat.com, jhubbard@nvidia.com, kirill.shutemov@linux.intel.com, linux-mm@kvack.org, mhocko@suse.com, mike.kravetz@oracle.com, mm-commits@vger.kernel.org, shuah@kernel.org, torvalds@linux-foundation.org, vbabka@suse.cz, viro@zeniv.linux.org.uk, willy@infradead.org =46rom: John Hubbard Subject: mm/gup: pass gup flags to two more routines In preparation for an upcoming patch, send gup flags args to two more routines: put_compound_head(), and undo_dev_pagemap(). Link: http://lkml.kernel.org/r/20200211001536.1027652-5-jhubbard@nvidia.com Signed-off-by: John Hubbard Acked-by: Kirill A. Shutemov Reviewed-by: Jan Kara Cc: Ira Weiny Cc: J=C3=A9r=C3=B4me Glisse Cc: "Matthew Wilcox (Oracle)" Cc: Al Viro Cc: Christoph Hellwig Cc: Dan Williams Cc: Dave Chinner Cc: Jason Gunthorpe Cc: Jonathan Corbet Cc: Michal Hocko Cc: Mike Kravetz Cc: Shuah Khan Cc: Vlastimil Babka Signed-off-by: Andrew Morton --- mm/gup.c | 19 ++++++++++--------- 1 file changed, 10 insertions(+), 9 deletions(-) --- a/mm/gup.c~mm-gup-pass-gup-flags-to-two-more-routines +++ a/mm/gup.c @@ -1870,6 +1870,7 @@ static inline pte_t gup_get_pte(pte_t *p #endif /* CONFIG_GUP_GET_PTE_LOW_HIGH */ =20 static void __maybe_unused undo_dev_pagemap(int *nr, int nr_start, + unsigned int flags, struct page **pages) { while ((*nr) - nr_start) { @@ -1909,7 +1910,7 @@ static int gup_pte_range(pmd_t pmd, unsi =20 pgmap =3D get_dev_pagemap(pte_pfn(pte), pgmap); if (unlikely(!pgmap)) { - undo_dev_pagemap(nr, nr_start, pages); + undo_dev_pagemap(nr, nr_start, flags, pages); goto pte_unmap; } } else if (pte_special(pte)) @@ -1974,7 +1975,7 @@ static int __gup_device_huge(unsigned lo =20 pgmap =3D get_dev_pagemap(pfn, pgmap); if (unlikely(!pgmap)) { - undo_dev_pagemap(nr, nr_start, pages); + undo_dev_pagemap(nr, nr_start, flags, pages); return 0; } SetPageReferenced(page); @@ -2001,7 +2002,7 @@ static int __gup_device_huge_pmd(pmd_t o return 0; =20 if (unlikely(pmd_val(orig) !=3D pmd_val(*pmdp))) { - undo_dev_pagemap(nr, nr_start, pages); + undo_dev_pagemap(nr, nr_start, flags, pages); return 0; } return 1; @@ -2019,7 +2020,7 @@ static int __gup_device_huge_pud(pud_t o return 0; =20 if (unlikely(pud_val(orig) !=3D pud_val(*pudp))) { - undo_dev_pagemap(nr, nr_start, pages); + undo_dev_pagemap(nr, nr_start, flags, pages); return 0; } return 1; @@ -2053,7 +2054,7 @@ static int record_subpages(struct page * return nr; } =20 -static void put_compound_head(struct page *page, int refs) +static void put_compound_head(struct page *page, int refs, unsigned int fl= ags) { VM_BUG_ON_PAGE(page_ref_count(page) < refs, page); /* @@ -2103,7 +2104,7 @@ static int gup_hugepte(pte_t *ptep, unsi return 0; =20 if (unlikely(pte_val(pte) !=3D pte_val(*ptep))) { - put_compound_head(head, refs); + put_compound_head(head, refs, flags); return 0; } =20 @@ -2163,7 +2164,7 @@ static int gup_huge_pmd(pmd_t orig, pmd_ return 0; =20 if (unlikely(pmd_val(orig) !=3D pmd_val(*pmdp))) { - put_compound_head(head, refs); + put_compound_head(head, refs, flags); return 0; } =20 @@ -2197,7 +2198,7 @@ static int gup_huge_pud(pud_t orig, pud_ return 0; =20 if (unlikely(pud_val(orig) !=3D pud_val(*pudp))) { - put_compound_head(head, refs); + put_compound_head(head, refs, flags); return 0; } =20 @@ -2226,7 +2227,7 @@ static int gup_huge_pgd(pgd_t orig, pgd_ return 0; =20 if (unlikely(pgd_val(orig) !=3D pgd_val(*pgdp))) { - put_compound_head(head, refs); + put_compound_head(head, refs, flags); return 0; } =20 _