Commit 6a5c5d26 authored Apr 29, 2019 by Linus Torvalds

rdma: fix build errors on s390 and MIPS due to bad ZERO_PAGE use

The parameter to ZERO_PAGE() was wrong, but since all architectures
except for MIPS and s390 ignore it, it wasn't noticed until 0-day
reported the build error.

Fixes: 67f269b3 ("RDMA/ucontext: Fix regression with disassociate")
Cc: stable@vger.kernel.org
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Leon Romanovsky <leonro@mellanox.com>
Cc: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

parent 37624b58

drivers/infiniband/core/uverbs_main.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -895,7 +895,7 @@ static vm_fault_t rdma_umap_fault(struct vm_fault *vmf)

		/* Read only pages can just use the system zero page. */
		if (!(vmf->vma->vm_flags & (VM_WRITE \| VM_MAYWRITE))) {
		vmf->page = ZERO_PAGE(vmf->vm_start);
		vmf->page = ZERO_PAGE(vmf->address);
		get_page(vmf->page);
		return 0;
		}