diff options
| author | Ashok Raj | 2005-06-25 23:54:52 +0200 |
|---|---|---|
| committer | Linus Torvalds | 2005-06-26 01:24:29 +0200 |
| commit | 67664c8f7e74def5adf66298a1245d82af72db2c (patch) | |
| tree | c98657d833d3ca61322a8ae54023814ebc36a480 /include/asm-i386/smp.h | |
| parent | [PATCH] i386 CPU hotplug (diff) | |
| download | kernel-qcow2-linux-67664c8f7e74def5adf66298a1245d82af72db2c.tar.gz kernel-qcow2-linux-67664c8f7e74def5adf66298a1245d82af72db2c.tar.xz kernel-qcow2-linux-67664c8f7e74def5adf66298a1245d82af72db2c.zip | |
[PATCH] i386: Dont use IPI broadcast when using cpu hotplug.
This patch introduces a startup parameter no_broadcast. When we enable
CONFIG_HOTPLUG_CPU, we dont want to use broadcast shortcut as it has ill
effects on a offline cpu. If we issue broadcast, the IPI is also delivered
to offline cpus, or partially up cpu causing stale IPI's to be handled,
which is a problem and can cause undesirable effects.
Introduces a new startup cmdline option no_ipi_broadcast, that can be
switched at cmdline if necessary.
Signed-off-by: Ashok Raj <ashok.raj@intel.com>
Acked-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/asm-i386/smp.h')
0 files changed, 0 insertions, 0 deletions