Heiko Carstens 1896d256d3 s390/cmpxchg: fix sign extension bugs ... For 1 and 2 byte operands for xchg and cmpxchg the old and new values get or'ed into the larger 4 byte old value before the compare and swap instruction gets executed. This is done without using the proper byte mask before or'ing the values. If the caller passed in negative old or new values these got sign extended by the caller. Which in turn means that either the old value never matches, or, even worse, unrelated bytes would be changed in memory. Luckily there don't seem to be any callers around yet, since that would have resulted in the specification exception fixed in an earlies patch. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>		2012-05-30 09:07:58 +02:00
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appldata
boot	s390: add various .gitignore files.	2012-05-16 14:42:41 +02:00
crypto	Disintegrate asm/system.h for S390	2012-03-28 18:30:02 +01:00
hypfs	switch open-coded instances of d_make_root() to new helper	2012-03-20 21:29:35 -04:00
include/asm	s390/cmpxchg: fix sign extension bugs	2012-05-30 09:07:58 +02:00
kernel	s390/cpu: remove cpu "capabilities" sysfs attribute	2012-05-30 09:07:30 +02:00
kvm	Disintegrate and delete asm/system.h	2012-03-28 15:58:21 -07:00
lib	s390/headers: replace __s390x__ with CONFIG_64BIT where possible	2012-05-24 10:10:10 +02:00
math-emu
mm	s390/kernel: Introduce memcpy_absolute() function	2012-05-30 09:04:49 +02:00
oprofile	s390/irq: split irq stats for cpu-measurement alert facilities	2012-05-23 17:06:52 +02:00
defconfig	s390/crypto des: add missing select statement	2012-05-16 14:42:36 +02:00
Kbuild
Kconfig	Merge branch 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2012-05-21 19:43:57 -07:00
Kconfig.debug
Makefile	s390: Use generic init_task	2012-05-05 13:00:25 +02:00