https://github.com/torvalds/linux
Revision 2103f6cba61a8b8bea3fc1b63661d830a2125e76 authored by Stephen Warren on 02 August 2013, 19:52:49 UTC, committed by Russell King on 13 August 2013, 19:23:18 UTC
Architectures should fully validate whether kexec is possible as part of machine_kexec_prepare(), so that user-space's kexec_load() operation can report any problems. Performing validation in machine_kexec() itself is too late, since it is not allowed to return. Prior to this patch, ARM's machine_kexec() was testing after-the-fact whether machine_kexec_prepare() was able to disable all but one CPU. Instead, modify machine_kexec_prepare() to validate all conditions necessary for machine_kexec_prepare()'s to succeed. BUG if the validation succeeded, yet disabling the CPUs didn't actually work. Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-by: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Tip revision: 2103f6cba61a8b8bea3fc1b63661d830a2125e76 authored by Stephen Warren on 02 August 2013, 19:52:49 UTC
ARM: 7807/1: kexec: validate CPU hotplug support
ARM: 7807/1: kexec: validate CPU hotplug support
Tip revision: 2103f6c
| File | Mode | Size |
|---|---|---|
| aoa | ||
| arm | ||
| atmel | ||
| core | ||
| drivers | ||
| firewire | ||
| i2c | ||
| isa | ||
| mips | ||
| oss | ||
| parisc | ||
| pci | ||
| pcmcia | ||
| ppc | ||
| sh | ||
| soc | ||
| sparc | ||
| spi | ||
| synth | ||
| usb | ||
| Kconfig | -rw-r--r-- | 3.8 KB |
| Makefile | -rw-r--r-- | 539 bytes |
| ac97_bus.c | -rw-r--r-- | 1.6 KB |
| last.c | -rw-r--r-- | 1.2 KB |
| sound_core.c | -rw-r--r-- | 15.9 KB |
| sound_firmware.c | -rw-r--r-- | 1.6 KB |
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