linux.git/tools/testing/selftests/proc, branch v5.1-rc2

tools/testing/selftests/proc/proc-pid-vm.c: test with vsyscall in mind

2019-03-14T21:36:20+00:00

: selftests: proc: proc-pid-vm
: ========================================
: proc-pid-vm: proc-pid-vm.c:277: main: Assertion `rv == strlen(buf0)' failed.
: Aborted

Because the vsyscall mapping is enabled.  Read from vsyscall page to tell
if vsyscall is being used.

Link: http://lkml.kernel.org/r/20190307183204.GA11405@avx2
Link: http://lkml.kernel.org/r/20190219094722.GB28258@shao2-debian
Fixes: 34aab6bec23e7e9 ("proc: test /proc/*/maps, smaps, smaps_rollup, statm")
Signed-off-by: Alexey Dobriyan 
Reported-by: kernel test robot 
Cc: Shuah Khan 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

tools/testing/selftests/proc/proc-self-syscall.c: remove duplicate include

2019-03-06T05:07:22+00:00

Remove duplicate header which is included twice.

Link: http://lkml.kernel.org/r/20190304182719.GA6606@jordon-HP-15-Notebook-PC
Signed-off-by: Sabyasachi Gupta 
Signed-off-by: Souptick Joarder 
Reviewed-by: Andrew Morton 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

proc: more robust bulk read test

2019-03-06T05:07:22+00:00

/proc may not be mounted and test will exit successfully.

Ensure proc is mounted at /proc.

Link: http://lkml.kernel.org/r/20190209105613.GA10384@avx2
Signed-off-by: Alexey Dobriyan 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

proc: test /proc/*/maps, smaps, smaps_rollup, statm

2019-03-06T05:07:22+00:00

Start testing VM related fiels found in per-process files.

Do it by jiting small executable which brings its address space to
precisely known state, then comparing /proc/*/maps, smaps, smaps_rollup,
and statm files to expected values.

Currently only x86_64 is supported.

[adobriyan@gmail.com: exit correctly in /proc/*/maps test]
  Link: http://lkml.kernel.org/r/20190206073659.GB15311@avx2
Link: http://lkml.kernel.org/r/20190203165806.GA14568@avx2
Signed-off-by: Alexey Dobriyan 
Cc: Shuah Khan 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

proc: return exit code 4 for skipped tests

2019-03-06T05:07:21+00:00

Test harness uses 4 for SKIP, not 2.

Link: http://lkml.kernel.org/r/20190108193108.GA12259@avx2
Signed-off-by: Alexey Dobriyan 
Cc: Shuah Khan 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

proc: fix /proc/net/* after setns(2)

2019-02-01T23:46:22+00:00

/proc entries under /proc/net/* can't be cached into dcache because
setns(2) can change current net namespace.

[akpm@linux-foundation.org: coding-style fixes]
[akpm@linux-foundation.org: avoid vim miscolorization]
[adobriyan@gmail.com: write test, add dummy ->d_revalidate hook: necessary if /proc/net/* is pinned at setns time]
  Link: http://lkml.kernel.org/r/20190108192350.GA12034@avx2
Link: http://lkml.kernel.org/r/20190107162336.GA9239@avx2
Fixes: 1da4d377f943fe4194ffb9fb9c26cc58fad4dd24 ("proc: revalidate misc dentries")
Signed-off-by: Alexey Dobriyan 
Reported-by: Mateusz Stępień 
Reported-by: Ahmad Fatoum 
Cc: Al Viro 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

proc: fixup map_files test on arm

2018-11-30T22:56:14+00:00

https://bugs.linaro.org/show_bug.cgi?id=3782

Turns out arm doesn't permit mapping address 0, so try minimum virtual
address instead.

Link: http://lkml.kernel.org/r/20181113165446.GA28157@avx2
Signed-off-by: Alexey Dobriyan 
Reported-by: Rafael David Tinoco 
Tested-by: Rafael David Tinoco 
Acked-by: Cyrill Gorcunov 
Cc: Shuah Khan 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

selftests: fix warning: "_GNU_SOURCE" redefined

2018-10-24T20:49:37+00:00

Makefile contains -D_GNU_SOURCE. remove define "_GNU_SOURCE"
in c files.

Signed-off-by: Peng Hao 
Signed-off-by: Shuah Khan (Samsung OSG)

proc: test /proc/thread-self symlink

2018-08-22T17:52:45+00:00

Same story: I have WIP patch to make it faster, so better have a test
as well.

Link: http://lkml.kernel.org/r/20180627195209.GC18113@avx2
Signed-off-by: Alexey Dobriyan 
Cc: Shuah Khan 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

proc: test /proc/self symlink

2018-08-22T17:52:45+00:00

There are plans to change how /proc/self result is calculated,
for that a test is necessary.

Use direct system call because of this whole getpid caching story.

Link: http://lkml.kernel.org/r/20180627195103.GB18113@avx2
Signed-off-by: Alexey Dobriyan 
Cc: Shuah Khan 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds