diff options
| author | David Hildenbrand <david@redhat.com> | 2022-10-21 13:11:35 +0300 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2022-12-12 05:12:08 +0300 |
| commit | cb8d863313436339fb60f7dd5131af2e5854621e (patch) | |
| tree | f6509e62179dbbf1a739c78bd050da8bdbac0eb9 /mm | |
| parent | 58f595c6659198e1ad0ed431a408ddd79b21e579 (diff) | |
| download | linux-cb8d863313436339fb60f7dd5131af2e5854621e.tar.xz | |
mm: remove VM_FAULT_WRITE
All users -- GUP and KSM -- are gone, let's just remove it.
Link: https://lkml.kernel.org/r/20221021101141.84170-4-david@redhat.com
Signed-off-by: David Hildenbrand <david@redhat.com>
Acked-by: Peter Xu <peterx@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Jason Gunthorpe <jgg@nvidia.com>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/huge_memory.c | 2 | ||||
| -rw-r--r-- | mm/memory.c | 9 |
2 files changed, 5 insertions, 6 deletions
diff --git a/mm/huge_memory.c b/mm/huge_memory.c index 8f10afba17a6..1d9ad909c87c 100644 --- a/mm/huge_memory.c +++ b/mm/huge_memory.c @@ -1376,7 +1376,7 @@ reuse: if (pmdp_set_access_flags(vma, haddr, vmf->pmd, entry, 1)) update_mmu_cache_pmd(vma, vmf->address, vmf->pmd); spin_unlock(vmf->ptl); - return VM_FAULT_WRITE; + return 0; } unlock_fallback: diff --git a/mm/memory.c b/mm/memory.c index 815d2ff05c62..aad226daf41b 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -3213,7 +3213,7 @@ static vm_fault_t wp_page_copy(struct vm_fault *vmf) } delayacct_wpcopy_end(); - return (page_copied && !unshare) ? VM_FAULT_WRITE : 0; + return 0; oom_free_new: put_page(new_page); oom: @@ -3277,14 +3277,14 @@ static vm_fault_t wp_pfn_shared(struct vm_fault *vmf) return finish_mkwrite_fault(vmf); } wp_page_reuse(vmf); - return VM_FAULT_WRITE; + return 0; } static vm_fault_t wp_page_shared(struct vm_fault *vmf) __releases(vmf->ptl) { struct vm_area_struct *vma = vmf->vma; - vm_fault_t ret = VM_FAULT_WRITE; + vm_fault_t ret = 0; get_page(vmf->page); @@ -3430,7 +3430,7 @@ reuse: return 0; } wp_page_reuse(vmf); - return VM_FAULT_WRITE; + return 0; } copy: /* @@ -3944,7 +3944,6 @@ vm_fault_t do_swap_page(struct vm_fault *vmf) if (vmf->flags & FAULT_FLAG_WRITE) { pte = maybe_mkwrite(pte_mkdirty(pte), vma); vmf->flags &= ~FAULT_FLAG_WRITE; - ret |= VM_FAULT_WRITE; } rmap_flags |= RMAP_EXCLUSIVE; } |