mm: add arch-independent testcases for RODATA
authorJinbum Park <jinb.park7@gmail.com>
Mon, 27 Feb 2017 22:30:22 +0000 (14:30 -0800)
committerLinus Torvalds <torvalds@linux-foundation.org>
Tue, 28 Feb 2017 02:43:48 +0000 (18:43 -0800)
commit2959a5f726f6510d6dd7c958f8877e08d0cf589c
tree4c5490b936791a7c9373d0c1c52ccc99022194ee
parent8d85063adbb1eb3d168e226fef96995391462c20
mm: add arch-independent testcases for RODATA

This patch makes arch-independent testcases for RODATA.  Both x86 and
x86_64 already have testcases for RODATA, But they are arch-specific
because using inline assembly directly.

And cacheflush.h is not a suitable location for rodata-test related
things.  Since they were in cacheflush.h, If someone change the state of
CONFIG_DEBUG_RODATA_TEST, It cause overhead of kernel build.

To solve the above issues, write arch-independent testcases and move it
to shared location.

[jinb.park7@gmail.com: fix config dependency]
Link: http://lkml.kernel.org/r/20170209131625.GA16954@pjb1027-Latitude-E5410
Link: http://lkml.kernel.org/r/20170129105436.GA9303@pjb1027-Latitude-E5410
Signed-off-by: Jinbum Park <jinb.park7@gmail.com>
Acked-by: Kees Cook <keescook@chromium.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Arjan van de Ven <arjan@linux.intel.com>
Cc: Laura Abbott <labbott@redhat.com>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Valentin Rothberg <valentinrothberg@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
arch/x86/Kconfig.debug
arch/x86/include/asm/cacheflush.h
arch/x86/kernel/Makefile
arch/x86/kernel/test_rodata.c [deleted file]
arch/x86/mm/init_32.c
arch/x86/mm/init_64.c
include/linux/rodata_test.h [new file with mode: 0644]
init/main.c
mm/Kconfig.debug
mm/Makefile
mm/rodata_test.c [new file with mode: 0644]