linux-toradex.git/tools/testing/selftests/futex, branch v6.0-rc4

selftests: stop using KSFT_KHDR_INSTALL

2022-07-11T23:23:30+00:00

Stop using the KSFT_KHDR_INSTALL flag as installing the kernel headers
from the kselftest Makefile is causing some issues.  Instead, rely on
the headers to be installed directly by the top-level Makefile
"headers_install" make target prior to building kselftest.

Signed-off-by: Guillaume Tucker 
Tested-by: Anders Roxell 
Signed-off-by: Shuah Khan

selftests: futex: Add the uapi headers include variable

2022-02-24T00:20:32+00:00

Out of tree build of this test fails if relative path of the output
directory is specified. KBUILD_OUTPUT also doesn't point to the correct
directory when relative path is used. Thus out of tree builds fail.
Remove the un-needed include paths and use KHDR_INCLUDES to correctly
reach the headers.

Signed-off-by: Muhammad Usama Anjum 
Signed-off-by: Shuah Khan

selftests: futex: set DEFAULT_INSTALL_HDR_PATH

2022-02-24T00:14:36+00:00

If only futex selftest is compiled, uapi header files are copied to the
selftests/futex/functional directory. This copy isn't needed. Set the
DEFAULT_INSTALL_HDR_PATH variable to 1 to use the default header install
path only. This removes extra copy of header file.

Signed-off-by: Muhammad Usama Anjum 
Signed-off-by: Shuah Khan

selftests: futex: Use variable MAKE instead of make

2022-01-27T23:29:23+00:00

Recursive make commands should always use the variable MAKE, not the
explicit command name ‘make’. This has benefits and removes the
following warning when multiple jobs are used for the build:

make[2]: warning: jobserver unavailable: using -j1.  Add '+' to parent make rule.

Fixes: a8ba798bc8ec ("selftests: enable O and KBUILD_OUTPUT")
Signed-off-by: Muhammad Usama Anjum 
Reviewed-by: André Almeida 
Signed-off-by: Shuah Khan

selftests: futex: Test sys_futex_waitv() wouldblock

2021-10-07T11:51:12+00:00

Test if futex_waitv() returns -EWOULDBLOCK correctly when the expected
value is different from the actual value for a waiter.

Signed-off-by: André Almeida 
Signed-off-by: Peter Zijlstra (Intel) 
Link: https://lore.kernel.org/r/20210923171111.300673-22-andrealmeid@collabora.com

selftests: futex: Test sys_futex_waitv() timeout

2021-10-07T11:51:12+00:00

Test if the futex_waitv timeout is working as expected, using the
supported clockid options.

Signed-off-by: André Almeida 
Signed-off-by: Peter Zijlstra (Intel) 
Link: https://lore.kernel.org/r/20210923171111.300673-21-andrealmeid@collabora.com

selftests: futex: Add sys_futex_waitv() test

2021-10-07T11:51:12+00:00

Create a new file to test the waitv mechanism. Test both private and
shared futexes. Wake the last futex in the array, and check if the
return value from futex_waitv() is the right index.

Signed-off-by: André Almeida 
Signed-off-by: Peter Zijlstra (Intel) 
Link: https://lore.kernel.org/r/20210923171111.300673-20-andrealmeid@collabora.com

selftests: futex: Add futex compare requeue test

2021-06-22T09:20:16+00:00

Add testing for futex_cmp_requeue(). The first test just requeues from one
waiter to another one, and wakes it. The second performs both wake and
requeue, and checks the return values to see if the operation woke/requeued
the expected number of waiters.

Signed-off-by: André Almeida 
Signed-off-by: Thomas Gleixner 
Acked-by: Davidlohr Bueso 
Link: https://lore.kernel.org/r/20210531165036.41468-3-andrealmeid@collabora.com

selftests: futex: Add futex wait test

2021-06-22T09:20:15+00:00

There are three different strategies to uniquely identify a futex in the
kernel:

 - Private futexes: uses the pointer to mm_struct and the page address

 - Shared futexes: checks if the page containing the address is a PageAnon:
   - If it is, uses the same data as a private futexes
   - If it isn't, uses an inode sequence number from struct inode and
      the page's index

Create a selftest to check those three paths and basic wait/wake
mechanism.

Signed-off-by: André Almeida 
Signed-off-by: Thomas Gleixner 
Acked-by: Davidlohr Bueso 
Link: https://lore.kernel.org/r/20210531165036.41468-2-andrealmeid@collabora.com

selftests: futex: Expand timeout test

2021-05-12T18:44:59+00:00

Improve futex timeout testing by checking all the operations that
supports timeout and their available modes.

Signed-off-by: André Almeida 
Signed-off-by: Ingo Molnar 
Link: https://lore.kernel.org/r/20210427135328.11013-3-andrealmeid@collabora.com