linux-kernel - [PATCH 0/2] mseal: Fix is_madv

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Message-ID: <20240807173336.2523757-1-pedro.falcato@gmail.com>
Date: Wed,  7 Aug 2024 18:33:34 +0100
From: Pedro Falcato <pedro.falcato@...il.com>
To: Andrew Morton <akpm@...ux-foundation.org>,
	Shuah Khan <shuah@...nel.org>,
	"Liam R. Howlett" <Liam.Howlett@...cle.com>,
	Jeff Xu <jeffxu@...omium.org>,
	Kees Cook <kees@...nel.org>,
	linux-mm@...ck.org
Cc: linux-kernel@...r.kernel.org,
	linux-kselftest@...r.kernel.org,
	Pedro Falcato <pedro.falcato@...il.com>
Subject: [PATCH 0/2] mseal: Fix is_madv_discard()

This small series fixes is_madv_discard() and adds a small sanity check
test to selftests/mm/mseal_test. Without this patch, is_madv_discard()
erroneously thinks innocent ops like MADV_RANDOM are discard operations
(which they are not, and are supposed to be allowed, per the overall
design).

Based on Linus's tree and taken from my mseal depessimization series[1].
[1]: https://lore.kernel.org/all/20240806212808.1885309-1-pedro.falcato@gmail.com/

Pedro Falcato (2):
  mseal: Fix is_madv_discard()
  selftests/mm: Add mseal test for no-discard madvise

 mm/mseal.c                              | 14 +++++++---
 tools/testing/selftests/mm/mseal_test.c | 34 +++++++++++++++++++++++++
 2 files changed, 45 insertions(+), 3 deletions(-)

-- 
2.46.0