summaryrefslogtreecommitdiff
path: root/mm/memory.c
diff options
context:
space:
mode:
authorDavid Hildenbrand <david@redhat.com>2022-05-09 18:20:43 -0700
committerakpm <akpm@linux-foundation.org>2022-05-09 18:20:43 -0700
commit14f9135d547060d1d0c182501201f8da19895fe3 (patch)
treecdcb53a63d699b791063ae2567fbe2ce65e1c6ff /mm/memory.c
parentfb3d824d1a46c5bb0584ea88f32dc2495544aebf (diff)
mm/rmap: convert RMAP flags to a proper distinct rmap_t type
We want to pass the flags to more than one anon rmap function, getting rid of special "do_page_add_anon_rmap()". So let's pass around a distinct __bitwise type and refine documentation. Link: https://lkml.kernel.org/r/20220428083441.37290-6-david@redhat.com Signed-off-by: David Hildenbrand <david@redhat.com> Acked-by: Vlastimil Babka <vbabka@suse.cz> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Christoph Hellwig <hch@lst.de> Cc: David Rientjes <rientjes@google.com> Cc: Don Dutile <ddutile@redhat.com> Cc: Hugh Dickins <hughd@google.com> Cc: Jan Kara <jack@suse.cz> Cc: Jann Horn <jannh@google.com> Cc: Jason Gunthorpe <jgg@nvidia.com> Cc: John Hubbard <jhubbard@nvidia.com> Cc: Khalid Aziz <khalid.aziz@oracle.com> Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> Cc: Liang Zhang <zhangliang5@huawei.com> Cc: "Matthew Wilcox (Oracle)" <willy@infradead.org> Cc: Michal Hocko <mhocko@kernel.org> Cc: Mike Kravetz <mike.kravetz@oracle.com> Cc: Mike Rapoport <rppt@linux.ibm.com> Cc: Nadav Amit <namit@vmware.com> Cc: Oded Gabbay <oded.gabbay@gmail.com> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Pedro Demarchi Gomes <pedrodemargomes@gmail.com> Cc: Peter Xu <peterx@redhat.com> Cc: Rik van Riel <riel@surriel.com> Cc: Roman Gushchin <guro@fb.com> Cc: Shakeel Butt <shakeelb@google.com> Cc: Yang Shi <shy828301@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/memory.c')
-rw-r--r--mm/memory.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/mm/memory.c b/mm/memory.c
index 9f5f829a1b1f..4cd8cadf1268 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -3511,10 +3511,10 @@ vm_fault_t do_swap_page(struct vm_fault *vmf)
struct vm_area_struct *vma = vmf->vma;
struct page *page = NULL, *swapcache;
struct swap_info_struct *si = NULL;
+ rmap_t rmap_flags = RMAP_NONE;
swp_entry_t entry;
pte_t pte;
int locked;
- int exclusive = 0;
vm_fault_t ret = 0;
void *shadow = NULL;
@@ -3689,7 +3689,7 @@ vm_fault_t do_swap_page(struct vm_fault *vmf)
pte = maybe_mkwrite(pte_mkdirty(pte), vma);
vmf->flags &= ~FAULT_FLAG_WRITE;
ret |= VM_FAULT_WRITE;
- exclusive = RMAP_EXCLUSIVE;
+ rmap_flags |= RMAP_EXCLUSIVE;
}
flush_icache_page(vma, page);
if (pte_swp_soft_dirty(vmf->orig_pte))
@@ -3705,7 +3705,7 @@ vm_fault_t do_swap_page(struct vm_fault *vmf)
page_add_new_anon_rmap(page, vma, vmf->address, false);
lru_cache_add_inactive_or_unevictable(page, vma);
} else {
- do_page_add_anon_rmap(page, vma, vmf->address, exclusive);
+ do_page_add_anon_rmap(page, vma, vmf->address, rmap_flags);
}
set_pte_at(vma->vm_mm, vmf->address, vmf->pte, pte);