diff options
author | Ashok Raj <ashok.raj@intel.com> | 2006-04-11 01:53:07 -0400 |
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committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-04-11 09:18:33 -0400 |
commit | 6cf272acd59e4e7a17b969adcdf413e15754bfe4 (patch) | |
tree | 270c777ea40d4a00ee3178be088419fb9bb2361e /arch/arm/lib/copy_from_user.S | |
parent | 3016b421534e2fa8a5eede1c12a3eba6164822f4 (diff) |
[PATCH] swsusp: don't require bigsmp
Switching to automatic bigsmp causes a misleading error message, that more
then 8 cpus are detected, and user needs to select either X86_GENERICARCH
or X86_BIGSMP to handle.
Reason is we switched to bigsmp to avoid IP race when new cpu is comming
up. [bigsmp is nothing but using physical flat mode that can work for 1 ..
255 cpus] [default is X86_PC, that uses logical flat mode up to 8 CPUs
max] Current x86_64 code uses bigsmp as default when hotplug is enabled.
It would be preferable to make bigsmp as default, and work the dependencies
of other related code like SMP_SUSPEND, and some related to memory hotplug
code for i386.
Current logical flat mode doesnt use shortcuts that cause the race by using
the send_IPI_mask() instead of shortcuts when HOTPLUG_CPU is enabled.
In the meantime this patch is the path of lease resistance.
We will switch to bigsmp default sometime soon, when we get to work it again.
Signed-off-by: Ashok Raj <ashok.raj@intel.com>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: Nigel Cunningham <nigel@suspend2.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/arm/lib/copy_from_user.S')
0 files changed, 0 insertions, 0 deletions