summaryrefslogtreecommitdiffstats
path: root/mm/util.c
diff options
context:
space:
mode:
authorYu-cheng Yu <yu-cheng.yu@intel.com>2023-06-13 02:10:30 +0200
committerRick Edgecombe <rick.p.edgecombe@intel.com>2023-07-11 23:12:18 +0200
commit592b5fad1677aa98a578ae50eb81d7383752c9c8 (patch)
tree81f7a3f58b5e0e8e92d321692ecccd9c76988ca8 /mm/util.c
parentmm: Make pte_mkwrite() take a VMA (diff)
downloadlinux-592b5fad1677aa98a578ae50eb81d7383752c9c8.tar.xz
linux-592b5fad1677aa98a578ae50eb81d7383752c9c8.zip
mm: Re-introduce vm_flags to do_mmap()
There was no more caller passing vm_flags to do_mmap(), and vm_flags was removed from the function's input by: commit 45e55300f114 ("mm: remove unnecessary wrapper function do_mmap_pgoff()"). There is a new user now. Shadow stack allocation passes VM_SHADOW_STACK to do_mmap(). Thus, re-introduce vm_flags to do_mmap(). Co-developed-by: Rick Edgecombe <rick.p.edgecombe@intel.com> Signed-off-by: Yu-cheng Yu <yu-cheng.yu@intel.com> Signed-off-by: Rick Edgecombe <rick.p.edgecombe@intel.com> Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com> Reviewed-by: Borislav Petkov (AMD) <bp@alien8.de> Reviewed-by: Peter Collingbourne <pcc@google.com> Reviewed-by: Kees Cook <keescook@chromium.org> Reviewed-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Reviewed-by: Mark Brown <broonie@kernel.org> Acked-by: Mike Rapoport (IBM) <rppt@kernel.org> Acked-by: David Hildenbrand <david@redhat.com> Tested-by: Pengfei Xu <pengfei.xu@intel.com> Tested-by: John Allen <john.allen@amd.com> Tested-by: Kees Cook <keescook@chromium.org> Tested-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/all/20230613001108.3040476-5-rick.p.edgecombe%40intel.com
Diffstat (limited to 'mm/util.c')
-rw-r--r--mm/util.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/util.c b/mm/util.c
index dd12b9531ac4..8e7fc6cacab4 100644
--- a/mm/util.c
+++ b/mm/util.c
@@ -540,7 +540,7 @@ unsigned long vm_mmap_pgoff(struct file *file, unsigned long addr,
if (!ret) {
if (mmap_write_lock_killable(mm))
return -EINTR;
- ret = do_mmap(file, addr, len, prot, flag, pgoff, &populate,
+ ret = do_mmap(file, addr, len, prot, flag, 0, pgoff, &populate,
&uf);
mmap_write_unlock(mm);
userfaultfd_unmap_complete(mm, &uf);