lkml.org 
[lkml]   [2016]   [Aug]   [30]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Subject[PATCH 0/4] mm: mlock: fix some locked_vm counting issues
Date
From: Simon Guo <wei.guo.simon@gmail.com>

This patch set fixes some mlock() misbehavior when mlock()/mlock2()
is invoked multiple times on intersect or same address regions.

And add selftest for this case.

Simon Guo (4):
mm: mlock: check against vma for actual mlock() size
mm: mlock: avoid increase mm->locked_vm on mlock() when already
mlock2(,MLOCK_ONFAULT)
selftest: split mlock2_ apis into separate mlock2.h
selftests/vm: add test for mlock() when areas are intersected.

mm/mlock.c | 53 ++++++++++++++++
tools/testing/selftests/vm/.gitignore | 1 +
tools/testing/selftests/vm/Makefile | 4 ++
tools/testing/selftests/vm/mlock-intersect-test.c | 76 +++++++++++++++++++++++
tools/testing/selftests/vm/mlock2-tests.c | 21 +------
tools/testing/selftests/vm/mlock2.h | 21 +++++++
6 files changed, 156 insertions(+), 20 deletions(-)
create mode 100644 tools/testing/selftests/vm/mlock-intersect-test.c
create mode 100644 tools/testing/selftests/vm/mlock2.h

--
1.8.3.1

\
 
 \ /
  Last update: 2016-09-17 09:58    [W:2.134 / U:0.580 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site