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From: Peter Xu <peterx@redhat.com>
To: linux-mm@kvack.org, linux-kernel@vger.kernel.org
Cc: Axel Rasmussen <axelrasmussen@google.com>,
	peterx@redhat.com, Andrew Morton <akpm@linux-foundation.org>,
	Andrea Arcangeli <aarcange@redhat.com>,
	Nadav Amit <nadav.amit@gmail.com>
Subject: [PATCH 0/2] mm/uffd: Fix vma check
Date: Mon, 24 Oct 2022 15:33:34 -0400	[thread overview]
Message-ID: <20221024193336.1233616-1-peterx@redhat.com> (raw)

I just got time to have a closer look on the uffd-wp triggering of the
warning here:

https://lore.kernel.org/all/YzeR+R6b4bwBlBHh@x1n/T/#u

It turns out to be a wrong check on vma, and with the fix attached we
should be able to remove the ugly macro checks.  Sorry for the bothersome.

Please have a look, thanks.

Peter Xu (2):
  mm/uffd: Fix vma check on userfault for wp
  Revert "mm/uffd: fix warning without PTE_MARKER_UFFD_WP compiled in"

 include/linux/userfaultfd_k.h | 6 +++---
 mm/hugetlb.c                  | 4 ----
 mm/memory.c                   | 2 --
 mm/mprotect.c                 | 2 --
 4 files changed, 3 insertions(+), 11 deletions(-)

-- 
2.37.3



             reply	other threads:[~2022-10-24 19:33 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-10-24 19:33 Peter Xu [this message]
2022-10-24 19:33 ` [PATCH 1/2] mm/uffd: Fix vma check on userfault for wp Peter Xu
2022-10-24 19:42   ` Peter Xu
2022-10-24 19:33 ` [PATCH 2/2] Revert "mm/uffd: fix warning without PTE_MARKER_UFFD_WP compiled in" Peter Xu

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