linux-kernel - [PATCH 0/6] sysctl: add pending proc_do_large

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Date:   Wed, 20 Mar 2019 22:28:25 +0000
From:   Luis Chamberlain <mcgrof@...nel.org>
To:     akpm@...ux-foundation.org, keescook@...omium.org
Cc:     sandeen@...hat.com, linux-fsdevel@...r.kernel.org,
        linux-kernel@...r.kernel.org, Luis Chamberlain <mcgrof@...nel.org>
Subject: [PATCH 0/6] sysctl: add pending proc_do_large_bitmap fix

Andrew, Kees,

Eric sent a fix out for proc_do_large_bitmap() last month for when
using a large input buffer. After patch review a test case for the issue
was built and submitted. I noticed there were a few issues with the
tests, but instead of just asking Eric to address them I've taken
care of them and ammended the commit where necessary. There's a
few issues he reported which I also address and fix in this series.

Since we *do* expect users of these scripts to also use them on older
kernels, I've also addressed not breaking calling the script for them,
and gives us an easy way to easily extend our tests cases for future
kernels as well.

Before anyone considers these for stable as minor fixes, I'd recommend
we also address the discrepancy on the read side of things: modify the
test script to use diff against the target file instead of using the
temp file.

Eric Sandeen (2):
  test_sysctl: add proc_do_large_bitmap() test case
  sysctl: Fix proc_do_large_bitmap for large input buffers

Luis Chamberlain (4):
  test_sysctl: remove superfluous test_reqs()
  test_sysctl: load module before testing for it
  test_sysctl: ignore diff output on verify_diff_w()
  test_sysctl: allow graceful use on older kernels

 kernel/sysctl.c                          |  30 ++++-
 lib/test_sysctl.c                        |  18 ++-
 tools/testing/selftests/sysctl/sysctl.sh | 161 +++++++++++++++++++----
 3 files changed, 178 insertions(+), 31 deletions(-)

-- 
2.18.0