From: Will Deacon <will@kernel.org> To: linux-kernel@vger.kernel.org Cc: linux-mm@kvack.org, linux-arm-kernel@lists.infradead.org, Will Deacon <will@kernel.org>, Catalin Marinas <catalin.marinas@arm.com>, Jan Kara <jack@suse.cz>, Minchan Kim <minchan@kernel.org>, Andrew Morton <akpm@linux-foundation.org>, "Kirill A . Shutemov" <kirill.shutemov@linux.intel.com>, Linus Torvalds <torvalds@linux-foundation.org>, Vinayak Menon <vinmenon@codeaurora.org>, Hugh Dickins <hughd@google.com>, Nick Desaulniers <ndesaulniers@google.com>, kernel-team@android.com Subject: [PATCH v4 7/8] mm: Use static initialisers for immutable fields of 'struct vm_fault' Date: Wed, 20 Jan 2021 17:36:11 +0000 [thread overview] Message-ID: <20210120173612.20913-8-will@kernel.org> (raw) In-Reply-To: <20210120173612.20913-1-will@kernel.org> In preparation for const-ifying the anonymous struct field of 'struct vm_fault', ensure that it is initialised using static initialisers. Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Will Deacon <will@kernel.org> --- mm/shmem.c | 6 +++--- mm/swapfile.c | 11 ++++++----- 2 files changed, 9 insertions(+), 8 deletions(-) diff --git a/mm/shmem.c b/mm/shmem.c index 7c6b6d8f6c39..1b254fbfdf52 100644 --- a/mm/shmem.c +++ b/mm/shmem.c @@ -1520,11 +1520,11 @@ static struct page *shmem_swapin(swp_entry_t swap, gfp_t gfp, { struct vm_area_struct pvma; struct page *page; - struct vm_fault vmf; + struct vm_fault vmf = { + .vma = &pvma, + }; shmem_pseudo_vma_init(&pvma, info, index); - vmf.vma = &pvma; - vmf.address = 0; page = swap_cluster_readahead(swap, gfp, &vmf); shmem_pseudo_vma_destroy(&pvma); diff --git a/mm/swapfile.c b/mm/swapfile.c index 9fffc5af29d1..2b570a566276 100644 --- a/mm/swapfile.c +++ b/mm/swapfile.c @@ -1951,8 +1951,6 @@ static int unuse_pte_range(struct vm_area_struct *vma, pmd_t *pmd, si = swap_info[type]; pte = pte_offset_map(pmd, addr); do { - struct vm_fault vmf; - if (!is_swap_pte(*pte)) continue; @@ -1968,9 +1966,12 @@ static int unuse_pte_range(struct vm_area_struct *vma, pmd_t *pmd, swap_map = &si->swap_map[offset]; page = lookup_swap_cache(entry, vma, addr); if (!page) { - vmf.vma = vma; - vmf.address = addr; - vmf.pmd = pmd; + struct vm_fault vmf = { + .vma = vma, + .address = addr, + .pmd = pmd, + }; + page = swapin_readahead(entry, GFP_HIGHUSER_MOVABLE, &vmf); } -- 2.30.0.284.gd98b1dd5eaa7-goog
WARNING: multiple messages have this Message-ID (diff)
From: Will Deacon <will@kernel.org> To: linux-kernel@vger.kernel.org Cc: Nick Desaulniers <ndesaulniers@google.com>, kernel-team@android.com, Jan Kara <jack@suse.cz>, Minchan Kim <minchan@kernel.org>, Catalin Marinas <catalin.marinas@arm.com>, Linus Torvalds <torvalds@linux-foundation.org>, Hugh Dickins <hughd@google.com>, linux-mm@kvack.org, Vinayak Menon <vinmenon@codeaurora.org>, "Kirill A . Shutemov" <kirill.shutemov@linux.intel.com>, Andrew Morton <akpm@linux-foundation.org>, Will Deacon <will@kernel.org>, linux-arm-kernel@lists.infradead.org Subject: [PATCH v4 7/8] mm: Use static initialisers for immutable fields of 'struct vm_fault' Date: Wed, 20 Jan 2021 17:36:11 +0000 [thread overview] Message-ID: <20210120173612.20913-8-will@kernel.org> (raw) In-Reply-To: <20210120173612.20913-1-will@kernel.org> In preparation for const-ifying the anonymous struct field of 'struct vm_fault', ensure that it is initialised using static initialisers. Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Will Deacon <will@kernel.org> --- mm/shmem.c | 6 +++--- mm/swapfile.c | 11 ++++++----- 2 files changed, 9 insertions(+), 8 deletions(-) diff --git a/mm/shmem.c b/mm/shmem.c index 7c6b6d8f6c39..1b254fbfdf52 100644 --- a/mm/shmem.c +++ b/mm/shmem.c @@ -1520,11 +1520,11 @@ static struct page *shmem_swapin(swp_entry_t swap, gfp_t gfp, { struct vm_area_struct pvma; struct page *page; - struct vm_fault vmf; + struct vm_fault vmf = { + .vma = &pvma, + }; shmem_pseudo_vma_init(&pvma, info, index); - vmf.vma = &pvma; - vmf.address = 0; page = swap_cluster_readahead(swap, gfp, &vmf); shmem_pseudo_vma_destroy(&pvma); diff --git a/mm/swapfile.c b/mm/swapfile.c index 9fffc5af29d1..2b570a566276 100644 --- a/mm/swapfile.c +++ b/mm/swapfile.c @@ -1951,8 +1951,6 @@ static int unuse_pte_range(struct vm_area_struct *vma, pmd_t *pmd, si = swap_info[type]; pte = pte_offset_map(pmd, addr); do { - struct vm_fault vmf; - if (!is_swap_pte(*pte)) continue; @@ -1968,9 +1966,12 @@ static int unuse_pte_range(struct vm_area_struct *vma, pmd_t *pmd, swap_map = &si->swap_map[offset]; page = lookup_swap_cache(entry, vma, addr); if (!page) { - vmf.vma = vma; - vmf.address = addr; - vmf.pmd = pmd; + struct vm_fault vmf = { + .vma = vma, + .address = addr, + .pmd = pmd, + }; + page = swapin_readahead(entry, GFP_HIGHUSER_MOVABLE, &vmf); } -- 2.30.0.284.gd98b1dd5eaa7-goog _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2021-01-20 17:42 UTC|newest] Thread overview: 56+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-01-20 17:36 [PATCH v4 0/8] Create 'old' ptes for faultaround mappings on arm64 with hardware access flag Will Deacon 2021-01-20 17:36 ` Will Deacon 2021-01-20 17:36 ` [PATCH v4 1/8] mm: Cleanup faultaround and finish_fault() codepaths Will Deacon 2021-01-20 17:36 ` Will Deacon 2021-01-20 17:36 ` [PATCH v4 2/8] mm: Allow architectures to request 'old' entries when prefaulting Will Deacon 2021-01-20 17:36 ` Will Deacon 2021-01-20 17:36 ` [PATCH v4 3/8] arm64: mm: Implement arch_wants_old_prefaulted_pte() Will Deacon 2021-01-20 17:36 ` Will Deacon 2021-01-20 17:36 ` [PATCH v4 4/8] mm: Move immutable fields of 'struct vm_fault' into anonymous struct Will Deacon 2021-01-20 17:36 ` Will Deacon 2021-01-20 18:13 ` Nick Desaulniers 2021-01-20 18:13 ` Nick Desaulniers 2021-01-20 18:13 ` Nick Desaulniers 2021-01-21 12:48 ` Will Deacon 2021-01-21 12:48 ` Will Deacon 2021-01-20 17:36 ` [PATCH v4 5/8] mm: Pass 'address' to map to do_set_pte() and drop FAULT_FLAG_PREFAULT Will Deacon 2021-01-20 17:36 ` Will Deacon 2021-01-20 17:36 ` [PATCH v4 6/8] mm: Avoid modifying vmf.address in __collapse_huge_page_swapin() Will Deacon 2021-01-20 17:36 ` Will Deacon 2021-01-20 17:36 ` Will Deacon [this message] 2021-01-20 17:36 ` [PATCH v4 7/8] mm: Use static initialisers for immutable fields of 'struct vm_fault' Will Deacon 2021-01-20 18:21 ` Nick Desaulniers 2021-01-20 18:21 ` Nick Desaulniers 2021-01-20 18:21 ` Nick Desaulniers 2021-01-21 12:50 ` Will Deacon 2021-01-21 12:50 ` Will Deacon 2021-01-20 17:36 ` [PATCH v4 8/8] mm: Mark anonymous struct field of 'struct vm_fault' as 'const' Will Deacon 2021-01-20 17:36 ` Will Deacon 2021-01-20 18:27 ` Nick Desaulniers 2021-01-20 18:27 ` Nick Desaulniers 2021-01-20 18:27 ` Nick Desaulniers 2021-01-20 19:02 ` Linus Torvalds 2021-01-20 19:02 ` Linus Torvalds 2021-01-20 19:02 ` Linus Torvalds 2021-01-21 13:11 ` Will Deacon 2021-01-21 13:11 ` Will Deacon 2021-01-21 19:24 ` Nick Desaulniers 2021-01-21 19:24 ` Nick Desaulniers 2021-01-21 19:24 ` Nick Desaulniers 2021-01-21 21:28 ` Will Deacon 2021-01-21 21:28 ` Will Deacon 2021-01-22 19:10 ` Nick Desaulniers 2021-01-22 19:10 ` Nick Desaulniers 2021-01-22 19:10 ` Nick Desaulniers 2021-01-22 19:27 ` Will Deacon 2021-01-22 19:27 ` Will Deacon 2021-01-22 17:47 ` Linus Torvalds 2021-01-22 17:47 ` Linus Torvalds 2021-01-22 17:47 ` Linus Torvalds 2021-01-26 23:08 ` [PATCH v4 0/8] Create 'old' ptes for faultaround mappings on arm64 with hardware access flag Will Deacon 2021-01-26 23:08 ` Will Deacon 2021-01-26 23:28 ` Hugh Dickins 2021-01-26 23:28 ` Hugh Dickins 2021-01-26 23:28 ` Hugh Dickins 2021-01-27 17:16 ` Will Deacon 2021-01-27 17:16 ` Will Deacon
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