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authorLen Brown <len.brown@intel.com>2010-02-19 00:09:22 -0500
committerLen Brown <len.brown@intel.com>2010-03-14 20:58:38 -0400
commit68ca406930d6380b3be7ada5f15fcf85bfcbd552 (patch)
tree866864defb2733d71bce04e342638c60f92fb928 /arch/x86/lguest
parent4c81ba4900ab4eb24c7d2ba1aca594c644b6ce4c (diff)
downloadlinux-68ca406930d6380b3be7ada5f15fcf85bfcbd552.tar.gz
ACPI: delete the "acpi=ht" boot option
acpi=ht was important in 2003 -- before ACPI was
universally deployed and enabled by default in
the major Linux distributions.

At that time, there were a fair number of people who
or chose to, or needed to, run with acpi=off,
yet also wanted access to Hyper-threading.

Today we find that many invocations of "acpi=ht"
are accidental, and thus is it possible that it
is doing more harm than good.

In 2.6.34, we warn on invocation of acpi=ht.
In 2.6.35, we delete the boot option.

Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'arch/x86/lguest')
-rw-r--r--arch/x86/lguest/boot.c1
1 files changed, 0 insertions, 1 deletions
diff --git a/arch/x86/lguest/boot.c b/arch/x86/lguest/boot.c
index 7e59dc1d3fc2..8eb9eed60282 100644
--- a/arch/x86/lguest/boot.c
+++ b/arch/x86/lguest/boot.c
@@ -1391,7 +1391,6 @@ __init void lguest_init(void)
 #endif
 #ifdef CONFIG_ACPI
 	acpi_disabled = 1;
-	acpi_ht = 0;
 #endif
 
 	/*