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authorDavid S. Miller <davem@pizda.ninka.net>2002-02-09 08:07:33 -0800
committerDavid S. Miller <davem@redhat.com>2002-02-09 08:07:33 -0800
commit1588b7ef1a50d4a99364b24554746fcb5fc9641a (patch)
tree91468527d52bd5fdd5e203deb1ce7d25a30ea683
parent3acfe790195079e659ace46983ae0095398fd0ef (diff)
Add CONFIG_PREEMPTION.
-rw-r--r--arch/sparc64/Config.help10
-rw-r--r--arch/sparc64/config.in1
2 files changed, 11 insertions, 0 deletions
diff --git a/arch/sparc64/Config.help b/arch/sparc64/Config.help
index 907510ad4978..237c8af3ceb4 100644
--- a/arch/sparc64/Config.help
+++ b/arch/sparc64/Config.help
@@ -25,6 +25,16 @@ CONFIG_SMP
If you don't know what to do here, say N.
+CONFIG_PREEMPT
+ This option reduces the latency of the kernel when reacting to
+ real-time or interactive events by allowing a low priority process to
+ be preempted even if it is in kernel mode executing a system call.
+ This allows applications to run more reliably even when the system is
+ under load.
+
+ Say Y here if you are building a kernel for a desktop, embedded
+ or real-time system. Say N if you are unsure.
+
CONFIG_SPARC64
SPARC is a family of RISC microprocessors designed and marketed by
Sun Microsystems, incorporated. This port covers the newer 64-bit
diff --git a/arch/sparc64/config.in b/arch/sparc64/config.in
index bcc1e62753f2..4410723bd191 100644
--- a/arch/sparc64/config.in
+++ b/arch/sparc64/config.in
@@ -15,6 +15,7 @@ define_bool CONFIG_VT y
define_bool CONFIG_VT_CONSOLE y
bool 'Symmetric multi-processing support' CONFIG_SMP
+bool 'Preemptible kernel' CONFIG_PREEMPT
# Identify this as a Sparc64 build
define_bool CONFIG_SPARC64 y