git.baikalelectronics.ru Git - kernel.git/commit

]> git.baikalelectronics.ru Git - kernel.git/commit

author	Martin Schwidefsky <schwidefsky@de.ibm.com>
	Fri, 24 Mar 2017 16:00:45 +0000 (17:00 +0100)
committer	Martin Schwidefsky <schwidefsky@de.ibm.com>
	Wed, 12 Apr 2017 06:43:33 +0000 (08:43 +0200)
commit	f0acdbd07f174e05d9de6787d135b3109b4107eb
tree	472c2bdb751e5529b403dd297b76ae08f25a7d9a	tree \| snapshot
parent	b4ed3bb10950cb0953edacf84a4c9341da6d510f	commit \| diff

s390/spinlock: remove compare and delay instruction

The CAD instruction never worked quite as expected for the spinlock
code. It has been disabled by default with git commit c781a402f7e5ee0b,
if the "cad" kernel parameter is specified it is enabled for both user
space and the spinlock code. Leave the option to enable the instruction
for user space but remove it from the spinlock code.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

arch/s390/include/asm/setup.h		diff \| blob \| history
arch/s390/kernel/early.c		diff \| blob \| history
arch/s390/lib/spinlock.c		diff \| blob \| history

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