[LTP] [PATCH v3 0/5] cachestat testing suite

[Andrea Cervesato]

This suite is adding covergae for the cachestat() syscall which is
providing support for reading the file cache status and it has been
added in the kernel 6.5.

There's not a man page yet, so please consider the following link as
documentation:
https://lwn.net/Articles/917059/

---
Changes in v3:
- include stdlib.h when free() is used
- add cachestat04 test looping on all file descriptors
- Link to v2: https://lore.kernel.org/r/20240715-cachestat-v2-0-55817ad1a408@suse.com

Changes in v2:
- cachestat01: run test on multiple test pages
- remove cachestat01A
- cachestat02: run test on multiple test pages
- add new cachestat03 test

Signed-off-by: Andrea Cervesato <andrea.cervesato@suse.com>

---
Andrea Cervesato (5):
      Add cachestat fallback definitions
      Add cachestat01 test
      Add cachestat02 test
      Add cachestat03 test
      Add cachestat04 test

 configure.ac                                      |   4 +
 include/lapi/mman.h                               |  44 +++++++++
 include/lapi/syscalls/aarch64.in                  |   1 +
 include/lapi/syscalls/arc.in                      |   1 +
 include/lapi/syscalls/arm.in                      |   1 +
 include/lapi/syscalls/hppa.in                     |   1 +
 include/lapi/syscalls/i386.in                     |   1 +
 include/lapi/syscalls/ia64.in                     |   1 +
 include/lapi/syscalls/loongarch.in                |   1 +
 include/lapi/syscalls/mips_n32.in                 |   1 +
 include/lapi/syscalls/mips_n64.in                 |   1 +
 include/lapi/syscalls/mips_o32.in                 |   1 +
 include/lapi/syscalls/powerpc.in                  |   1 +
 include/lapi/syscalls/powerpc64.in                |   1 +
 include/lapi/syscalls/s390.in                     |   1 +
 include/lapi/syscalls/s390x.in                    |   1 +
 include/lapi/syscalls/sh.in                       |   1 +
 include/lapi/syscalls/sparc.in                    |   1 +
 include/lapi/syscalls/sparc64.in                  |   1 +
 include/lapi/syscalls/x86_64.in                   |   1 +
 runtest/syscalls                                  |   5 +
 testcases/kernel/syscalls/cachestat/.gitignore    |   4 +
 testcases/kernel/syscalls/cachestat/Makefile      |  10 ++
 testcases/kernel/syscalls/cachestat/cachestat.h   |  27 ++++++
 testcases/kernel/syscalls/cachestat/cachestat01.c | 106 ++++++++++++++++++++++
 testcases/kernel/syscalls/cachestat/cachestat02.c |  90 ++++++++++++++++++
 testcases/kernel/syscalls/cachestat/cachestat03.c |  80 ++++++++++++++++
 testcases/kernel/syscalls/cachestat/cachestat04.c |  58 ++++++++++++
 28 files changed, 446 insertions(+)
---
base-commit: 2433c503a6657273da895e36adda73942452c482
change-id: 20240515-cachestat-11fc82af07ec

Best regards,
-- 
Andrea Cervesato <andrea.cervesato@suse.com>