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Heiko Carstens d3d238c774 [S390] nohz: Fix __udelay. ... This fixes a regression that came with 934b2857cc ("[S390] nohz/sclp: disable timer on synchronous waits."). If udelay() gets called from a disabled context it sets the clock comparator to a value where it expects the next interrupt. When the interrupt happens the clock comparator gets not reset and therefore the interrupt condition doesn't get cleared. The result is an endless timer interrupt loop. In addition this patch fixes also the following: rcutorture reveals that our __udelay implementation is still buggy, since it might schedule tasklets, but prevents their execution: NOHZ: local_softirq_pending 42 NOHZ: local_softirq_pending 02 NOHZ: local_softirq_pending 142 NOHZ: local_softirq_pending 02 To fix this we make sure that only the clock comparator interrupt is enabled when the enabled wait psw is loaded. Also no code gets called anymore which might schedule tasklets. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>		17 years ago
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appldata	…
boot	…
crypto	…
hypfs	…
include/asm	[S390] fix ext2_find_next_bit	17 years ago
kernel	[S390] nohz: Fix __udelay.	17 years ago
kvm	KVM: s390: Fix kvm on IBM System z10	17 years ago
lib	[S390] nohz: Fix __udelay.	17 years ago
math-emu	…
mm	[S390] Add support for memory hot-remove.	17 years ago
oprofile	…
Kconfig	[S390] Add support for memory hot-remove.	17 years ago
Kconfig.debug	…
Makefile	…
defconfig	[S390] Update default configuration.	17 years ago