From 48e5d840399f4884b7acabb42384f16deb9ea3a8 Mon Sep 17 00:00:00 2001 From: V3n3RiX Date: Sun, 4 Nov 2018 15:44:55 +0000 Subject: sys-kernel/linux-{image,sources}-redcore-lts : * version bump to v4.14.75 * adjust MuQSS v0.162 CPU scheduler to linux-hardened and enable it by default * add BFQ-SQ v8r12 I/O scheduler and enable it by default * lower HZ to 100 (recommended value for MuQSS enabled kernels) * disable dynamic ticks (MuQSS itself is a tickless scheduler, so no longer required) --- ...ed-IRQs-optionally-the-default-which-can-.patch | 61 ++++++++++++++++++++++ 1 file changed, 61 insertions(+) create mode 100644 packages/sys-kernel/linux-image-redcore-lts/files/0013-Make-threaded-IRQs-optionally-the-default-which-can-.patch (limited to 'packages/sys-kernel/linux-image-redcore-lts/files/0013-Make-threaded-IRQs-optionally-the-default-which-can-.patch') diff --git a/packages/sys-kernel/linux-image-redcore-lts/files/0013-Make-threaded-IRQs-optionally-the-default-which-can-.patch b/packages/sys-kernel/linux-image-redcore-lts/files/0013-Make-threaded-IRQs-optionally-the-default-which-can-.patch new file mode 100644 index 0000000..63ec9fd --- /dev/null +++ b/packages/sys-kernel/linux-image-redcore-lts/files/0013-Make-threaded-IRQs-optionally-the-default-which-can-.patch @@ -0,0 +1,61 @@ +From 5902b315d4061ebbe73a62c52e6d3b618066cebc Mon Sep 17 00:00:00 2001 +From: Con Kolivas +Date: Wed, 7 Dec 2016 21:13:16 +1100 +Subject: [PATCH 13/16] Make threaded IRQs optionally the default which can be + disabled. + +--- + kernel/irq/Kconfig | 14 ++++++++++++++ + kernel/irq/manage.c | 10 ++++++++++ + 2 files changed, 24 insertions(+) + +diff --git a/kernel/irq/Kconfig b/kernel/irq/Kconfig +index a117adf7084b..0984c54fd4e9 100644 +--- a/kernel/irq/Kconfig ++++ b/kernel/irq/Kconfig +@@ -111,6 +111,20 @@ config IRQ_DOMAIN_DEBUG + config IRQ_FORCED_THREADING + bool + ++config FORCE_IRQ_THREADING ++ bool "Make IRQ threading compulsory" ++ depends on IRQ_FORCED_THREADING ++ default y ++ ---help--- ++ ++ Make IRQ threading mandatory for any IRQ handlers that support it ++ instead of being optional and requiring the threadirqs kernel ++ parameter. Instead they can be optionally disabled with the ++ nothreadirqs kernel parameter. ++ ++ Enable if you are building for a desktop or low latency system, ++ otherwise say N. ++ + config SPARSE_IRQ + bool "Support sparse irq numbering" if MAY_HAVE_SPARSE_IRQ + ---help--- +diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c +index 4bff6a10ae8e..5a6df0dd23c4 100644 +--- a/kernel/irq/manage.c ++++ b/kernel/irq/manage.c +@@ -24,7 +24,17 @@ + #include "internals.h" + + #ifdef CONFIG_IRQ_FORCED_THREADING ++#ifdef CONFIG_FORCE_IRQ_THREADING ++__read_mostly bool force_irqthreads = true; ++#else + __read_mostly bool force_irqthreads; ++#endif ++static int __init setup_noforced_irqthreads(char *arg) ++{ ++ force_irqthreads = false; ++ return 0; ++} ++early_param("nothreadirqs", setup_noforced_irqthreads); + + static int __init setup_forced_irqthreads(char *arg) + { +-- +2.11.0 + -- cgit v1.2.3