Revision d7c53c9e822a4fefa13a0cae76f3190bfd0d5c11 authored by Borislav Petkov on 19 August 2010, 18:10:29 UTC, committed by H. Peter Anvin on 19 August 2010, 21:47:43 UTC
When testing cpu hotplug code on 32-bit we kept hitting the "CPU%d: Stuck ??" message due to multiple cores concurrently accessing the cpu_callin_mask, among others. Since these codepaths are not protected from concurrent access due to the fact that there's no sane reason for making an already complex code unnecessarily more complex - we hit the issue only when insanely switching cores off- and online - serialize hotplugging cores on the sysfs level and be done with it. [ v2.1: fix !HOTPLUG_CPU build ] Cc: <stable@kernel.org> Signed-off-by: Borislav Petkov <borislav.petkov@amd.com> LKML-Reference: <20100819181029.GC17171@aftab> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
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| File | Mode | Size |
|---|---|---|
| apparmor | ||
| integrity | ||
| keys | ||
| selinux | ||
| smack | ||
| tomoyo | ||
| Kconfig | -rw-r--r-- | 6.4 KB |
| Makefile | -rw-r--r-- | 938 bytes |
| capability.c | -rw-r--r-- | 22.9 KB |
| commoncap.c | -rw-r--r-- | 26.6 KB |
| device_cgroup.c | -rw-r--r-- | 11.8 KB |
| inode.c | -rw-r--r-- | 8.7 KB |
| lsm_audit.c | -rw-r--r-- | 8.7 KB |
| min_addr.c | -rw-r--r-- | 1.3 KB |
| security.c | -rw-r--r-- | 32.1 KB |
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