• Hugh Dickins's avatar
    arm: adjust_pte() use pte_offset_map_nolock() · de2e4626
    Hugh Dickins authored
    Instead of pte_lockptr(), use the recently added pte_offset_map_nolock()
    in adjust_pte(): because it gives the not-locked ptl for precisely that
    pte, which the caller can then safely lock; whereas pte_lockptr() is not
    so tightly coupled, because it dereferences the pmd pointer again.
    
    Link: https://lkml.kernel.org/r/4d5258bd-ffa0-018-253a-25f2c9b783f7@google.comSigned-off-by: default avatarHugh Dickins <hughd@google.com>
    Cc: Alexander Gordeev <agordeev@linux.ibm.com>
    Cc: Alistair Popple <apopple@nvidia.com>
    Cc: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
    Cc: Anshuman Khandual <anshuman.khandual@arm.com>
    Cc: Axel Rasmussen <axelrasmussen@google.com>
    Cc: Christian Borntraeger <borntraeger@linux.ibm.com>
    Cc: Christophe Leroy <christophe.leroy@csgroup.eu>
    Cc: Christoph Hellwig <hch@infradead.org>
    Cc: Claudio Imbrenda <imbrenda@linux.ibm.com>
    Cc: David Hildenbrand <david@redhat.com>
    Cc: "David S. Miller" <davem@davemloft.net>
    Cc: Gerald Schaefer <gerald.schaefer@linux.ibm.com>
    Cc: Heiko Carstens <hca@linux.ibm.com>
    Cc: Huang, Ying <ying.huang@intel.com>
    Cc: Ira Weiny <ira.weiny@intel.com>
    Cc: Jann Horn <jannh@google.com>
    Cc: Jason Gunthorpe <jgg@ziepe.ca>
    Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
    Cc: Lorenzo Stoakes <lstoakes@gmail.com>
    Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
    Cc: Mel Gorman <mgorman@techsingularity.net>
    Cc: Miaohe Lin <linmiaohe@huawei.com>
    Cc: Michael Ellerman <mpe@ellerman.id.au>
    Cc: Mike Kravetz <mike.kravetz@oracle.com>
    Cc: Mike Rapoport (IBM) <rppt@kernel.org>
    Cc: Minchan Kim <minchan@kernel.org>
    Cc: Naoya Horiguchi <naoya.horiguchi@nec.com>
    Cc: Pavel Tatashin <pasha.tatashin@soleen.com>
    Cc: Peter Xu <peterx@redhat.com>
    Cc: Peter Zijlstra <peterz@infradead.org>
    Cc: Qi Zheng <zhengqi.arch@bytedance.com>
    Cc: Ralph Campbell <rcampbell@nvidia.com>
    Cc: Russell King <linux@armlinux.org.uk>
    Cc: SeongJae Park <sj@kernel.org>
    Cc: Song Liu <song@kernel.org>
    Cc: Steven Price <steven.price@arm.com>
    Cc: Suren Baghdasaryan <surenb@google.com>
    Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com>
    Cc: Vasily Gorbik <gor@linux.ibm.com>
    Cc: Vishal Moola (Oracle) <vishal.moola@gmail.com>
    Cc: Vlastimil Babka <vbabka@suse.cz>
    Cc: Will Deacon <will@kernel.org>
    Cc: Yang Shi <shy828301@gmail.com>
    Cc: Yu Zhao <yuzhao@google.com>
    Cc: Zack Rusin <zackr@vmware.com>
    Cc: Zi Yan <ziy@nvidia.com>
    Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
    de2e4626
fault-armv.c 6.63 KB