The patch titled
Subject: mm/madvise.c: use PAGE_ALIGN[ED] for range checking
has been added to the -mm tree. Its filename is
madvise-use-page_align-for-range-checking.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/madvise-use-page_align-for-range-checking.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/madvise-use-page_align-for-range-checking.patch
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***
The -mm tree is included into linux-next and is updated
there every 3-4 working days
------------------------------------------------------
From: Wei Yang <richardw.yang@xxxxxxxxxxxxxxx>
Subject: mm/madvise.c: use PAGE_ALIGN[ED] for range checking
Improve readability, no functional change.
Link: http://lkml.kernel.org/r/20191118032857.22683-1-richardw.yang@xxxxxxxxxxxxxxx
Signed-off-by: Wei Yang <richardw.yang@xxxxxxxxxxxxxxx>
Reviewed-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/madvise.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/mm/madvise.c~madvise-use-page_align-for-range-checking
+++ a/mm/madvise.c
@@ -1059,9 +1059,9 @@ SYSCALL_DEFINE3(madvise, unsigned long,
if (!madvise_behavior_valid(behavior))
return error;
- if (start & ~PAGE_MASK)
+ if (!PAGE_ALIGNED(start))
return error;
- len = (len_in + ~PAGE_MASK) & PAGE_MASK;
+ len = PAGE_ALIGN(len_in);
/* Check to see whether len was rounded up from small -ve to zero */
if (len_in && !len)
_
Patches currently in -mm which might be from richardw.yang@xxxxxxxxxxxxxxx are
mm-mmapc-remove-a-never-trigger-warning-in-__vma_adjust.patch
mm-mmapc-prev-could-be-retrieved-from-vma-vm_prev.patch
mm-mmapc-__vma_unlink_prev-is-not-necessary-now.patch
mm-mmapc-extract-__vma_unlink_list-as-counter-part-for-__vma_link_list.patch
mm-mmapc-rb_parent-is-not-necessary-in-__vma_link_list.patch
mm-rmapc-dont-reuse-anon_vma-if-we-just-want-a-copy.patch
mm-rmapc-reuse-mergeable-anon_vma-as-parent-when-fork.patch
hugetlb-remove-unused-hstate-in-hugetlb_fault_mutex_hash.patch
mm-mmapc-make-vma_merge-comment-more-easy-to-understand.patch
madvise-use-page_align-for-range-checking.patch
userfaultfd-use-vma_pagesize-for-all-huge-page-size-calculation.patch
userfaultfd-remove-unnecessary-warn_on-in-__mcopy_atomic_hugetlb.patch
userfaultfd-wrap-the-common-dst_vma-check-into-an-inlined-function.patch
mm-fix-typo-in-the-comment-when-calling-function-__setpageuptodate.patch
lib-rbtree-set-successors-parent-unconditionally.patch
lib-rbtree-get-successors-color-directly.patch
