X-Git-Url: http://git.openwrt.org/?a=blobdiff_plain;f=config%2FConfig-kernel.in;h=bdb6b91cbb0a44b22c1854027e3c9964b324a0ab;hb=7cc22d72e96093c816292e1b640adff770c7fe77;hp=3468899adc786e770f5519f1056985398db12d71;hpb=90336ef4cd3bd6abeb36c321a455b9e875eec56a;p=openwrt%2Fopenwrt.git diff --git a/config/Config-kernel.in b/config/Config-kernel.in index 3468899adc..bdb6b91cbb 100644 --- a/config/Config-kernel.in +++ b/config/Config-kernel.in @@ -6,6 +6,7 @@ config KERNEL_BUILD_USER string "Custom Kernel Build User Name" + default "builder" if BUILDBOT default "" help Sets the Kernel build user string, which for example will be returned @@ -14,6 +15,7 @@ config KERNEL_BUILD_USER config KERNEL_BUILD_DOMAIN string "Custom Kernel Build Domain Name" + default "buildhost" if BUILDBOT default "" help Sets the Kernel build domain string, which for example will be @@ -31,7 +33,7 @@ config KERNEL_CRASHLOG config KERNEL_SWAP bool "Support for paging of anonymous memory (swap)" - default y + default y if !SMALL_FLASH config KERNEL_DEBUG_FS bool "Compile the kernel with debug filesystem enabled" @@ -42,15 +44,38 @@ config KERNEL_DEBUG_FS write to these files. Many common debugging facilities, such as ftrace, require the existence of debugfs. +config KERNEL_MIPS_FPU_EMULATOR + bool "Compile the kernel with MIPS FPU Emulator" + default y if TARGET_pistachio + depends on (mips || mipsel || mips64 || mips64el) + config KERNEL_ARM_PMU bool default n - depends on (arm || arm64) + depends on (arm || aarch64) + +config KERNEL_X86_VSYSCALL_EMULATION + bool "Enable vsyscall emulation" + default n + depends on x86_64 + help + This enables emulation of the legacy vsyscall page. Disabling + it is roughly equivalent to booting with vsyscall=none, except + that it will also disable the helpful warning if a program + tries to use a vsyscall. With this option set to N, offending + programs will just segfault, citing addresses of the form + 0xffffffffff600?00. + + This option is required by many programs built before 2013, and + care should be used even with newer programs if set to N. + + Disabling this option saves about 7K of kernel size and + possibly 4K of additional runtime pagetable memory. config KERNEL_PERF_EVENTS bool "Compile the kernel with performance events and counters" default n - select KERNEL_ARM_PMU if (arm || arm64) + select KERNEL_ARM_PMU if (arm || aarch64) config KERNEL_PROFILING bool "Compile the kernel with profiling enabled" @@ -60,6 +85,27 @@ config KERNEL_PROFILING Enable the extended profiling support mechanisms used by profilers such as OProfile. +config KERNEL_TASKSTATS + bool "Compile the kernel with task resource/io statistics and accounting" + default n + help + Enable the collection and publishing of task/io statistics and + accounting. Enable this option to enable i/o monitoring in system + monitors. + +if KERNEL_TASKSTATS + + config KERNEL_TASK_DELAY_ACCT + def_bool y + + config KERNEL_TASK_IO_ACCOUNTING + def_bool y + + config KERNEL_TASK_XACCT + def_bool y + +endif + config KERNEL_KALLSYMS bool "Compile the kernel with symbol table information" default y if !SMALL_FLASH @@ -107,7 +153,7 @@ config KERNEL_DEBUG_KERNEL config KERNEL_DEBUG_INFO bool "Compile the kernel with debug information" - default y + default y if !SMALL_FLASH select KERNEL_DEBUG_KERNEL help This will compile your kernel and modules with debug information. @@ -166,17 +212,21 @@ config KERNEL_KPROBE_EVENT bool default y if KERNEL_KPROBES +config KERNEL_KPROBE_EVENTS + bool + default y if KERNEL_KPROBES + config KERNEL_AIO bool "Compile the kernel with asynchronous IO support" - default n + default y if !SMALL_FLASH config KERNEL_FHANDLE bool "Compile the kernel with support for fhandle syscalls" - default n + default y if !SMALL_FLASH config KERNEL_FANOTIFY bool "Compile the kernel with modern file notification support" - default n + default y if !SMALL_FLASH config KERNEL_BLK_DEV_BSG bool "Compile the kernel with SCSI generic v4 support for any block device" @@ -200,7 +250,7 @@ config KERNEL_COREDUMP config KERNEL_ELF_CORE bool "Enable process core dump support" select KERNEL_COREDUMP - default y + default y if !SMALL_FLASH config KERNEL_PROVE_LOCKING bool "Enable kernel lock checking" @@ -254,7 +304,7 @@ config KERNEL_DEVTMPFS default n help devtmpfs is a simple, kernel-managed /dev filesystem. The kernel creates - devices nodes for all registered devices ti simplify boot, but leaves more + devices nodes for all registered devices to simplify boot, but leaves more complex tasks to userspace (e.g. udev). if KERNEL_DEVTMPFS @@ -290,7 +340,7 @@ config KERNEL_ENCRYPTED_KEYS config KERNEL_CGROUPS bool "Enable kernel cgroups" - default n + default y if !SMALL_FLASH if KERNEL_CGROUPS @@ -329,7 +379,7 @@ if KERNEL_CGROUPS config KERNEL_CPUSETS bool "Cpuset support" - default n + default y if !SMALL_FLASH help This option will let you create and manage CPUSETs which allow dynamically partitioning a system into sets of CPUs and @@ -343,14 +393,14 @@ if KERNEL_CGROUPS config KERNEL_CGROUP_CPUACCT bool "Simple CPU accounting cgroup subsystem" - default n + default y if !SMALL_FLASH help Provides a simple Resource Controller for monitoring the total CPU consumed by the tasks in a cgroup. config KERNEL_RESOURCE_COUNTERS bool "Resource counters" - default n + default y if !SMALL_FLASH help This option enables controller independent resource accounting infrastructure that works with cgroups. @@ -361,7 +411,7 @@ if KERNEL_CGROUPS config KERNEL_MEMCG bool "Memory Resource Controller for Control Groups" - default n + default y if !SMALL_FLASH depends on KERNEL_RESOURCE_COUNTERS || !LINUX_3_18 help Provides a memory resource controller that manages both anonymous @@ -419,7 +469,7 @@ if KERNEL_CGROUPS config KERNEL_MEMCG_KMEM bool "Memory Resource Controller Kernel Memory accounting (EXPERIMENTAL)" - default n + default y if !SMALL_FLASH depends on KERNEL_MEMCG help The Kernel Memory extension for Memory Resource Controller can limit @@ -440,7 +490,7 @@ if KERNEL_CGROUPS menuconfig KERNEL_CGROUP_SCHED bool "Group CPU scheduler" - default n + default y if !SMALL_FLASH help This feature lets CPU scheduler recognize task groups and control CPU bandwidth allocation to such task groups. It uses cgroups to group @@ -450,7 +500,7 @@ if KERNEL_CGROUPS config KERNEL_FAIR_GROUP_SCHED bool "Group scheduling for SCHED_OTHER" - default n + default y if !SMALL_FLASH config KERNEL_CFS_BANDWIDTH bool "CPU bandwidth provisioning for FAIR_GROUP_SCHED" @@ -465,7 +515,7 @@ if KERNEL_CGROUPS config KERNEL_RT_GROUP_SCHED bool "Group scheduling for SCHED_RR/FIFO" - default n + default y if !SMALL_FLASH help This feature lets you explicitly allocate real CPU bandwidth to task groups. If enabled, it will also make it impossible to @@ -493,6 +543,20 @@ if KERNEL_CGROUPS CONFIG_CFQ_GROUP_IOSCHED=y; for enabling throttling policy, set CONFIG_BLK_DEV_THROTTLING=y. + if KERNEL_BLK_CGROUP + + config KERNEL_CFQ_GROUP_IOSCHED + bool "Proportional weight of disk bandwidth in CFQ" + + config KERNEL_BLK_DEV_THROTTLING + bool "Enable throttling policy" + default y if TARGET_brcm2708 + + config KERNEL_BLK_DEV_THROTTLING_LOW + bool "Block throttling .low limit interface support (EXPERIMENTAL)" + depends on KERNEL_BLK_DEV_THROTTLING + endif + config KERNEL_DEBUG_BLK_CGROUP bool "Enable Block IO controller debugging" default n @@ -517,7 +581,7 @@ endif config KERNEL_NAMESPACES bool "Enable kernel namespaces" - default n + default y if !SMALL_FLASH if KERNEL_NAMESPACES @@ -559,54 +623,54 @@ if KERNEL_NAMESPACES endif -# -# LXC related symbols -# - -config KERNEL_LXC_MISC - bool "Enable miscellaneous LXC related options" - default n - -if KERNEL_LXC_MISC - - config KERNEL_DEVPTS_MULTIPLE_INSTANCES - bool "Support multiple instances of devpts" - default y - help - Enable support for multiple instances of devpts filesystem. - If you want to have isolated PTY namespaces (eg: in containers), - say Y here. Otherwise, say N. If enabled, each mount of devpts - filesystem with the '-o newinstance' option will create an - independent PTY namespace. - - config KERNEL_POSIX_MQUEUE - bool "POSIX Message Queues" - default y - help - POSIX variant of message queues is a part of IPC. In POSIX message - queues every message has a priority which decides about succession - of receiving it by a process. If you want to compile and run - programs written e.g. for Solaris with use of its POSIX message - queues (functions mq_*) say Y here. +config KERNEL_DEVPTS_MULTIPLE_INSTANCES + bool "Support multiple instances of devpts" + default y if !SMALL_FLASH + help + Enable support for multiple instances of devpts filesystem. + If you want to have isolated PTY namespaces (eg: in containers), + say Y here. Otherwise, say N. If enabled, each mount of devpts + filesystem with the '-o newinstance' option will create an + independent PTY namespace. + +config KERNEL_POSIX_MQUEUE + bool "POSIX Message Queues" + default y if !SMALL_FLASH + help + POSIX variant of message queues is a part of IPC. In POSIX message + queues every message has a priority which decides about succession + of receiving it by a process. If you want to compile and run + programs written e.g. for Solaris with use of its POSIX message + queues (functions mq_*) say Y here. - POSIX message queues are visible as a filesystem called 'mqueue' - and can be mounted somewhere if you want to do filesystem - operations on message queues. + POSIX message queues are visible as a filesystem called 'mqueue' + and can be mounted somewhere if you want to do filesystem + operations on message queues. -endif config KERNEL_SECCOMP_FILTER bool - default n + default y if !SMALL_FLASH config KERNEL_SECCOMP bool "Enable seccomp support" depends on !(TARGET_uml) select KERNEL_SECCOMP_FILTER - default n + default y if !SMALL_FLASH help Build kernel with support for seccomp. +# +# IPv4 configuration +# + +config KERNEL_IP_MROUTE + bool "Enable IPv4 multicast routing" + default y + help + Multicast routing requires a multicast routing daemon in + addition to kernel support. + # # IPv6 configuration # @@ -623,7 +687,11 @@ if KERNEL_IPV6 def_bool y config KERNEL_IPV6_MROUTE - def_bool y + bool "Enable IPv6 multicast routing" + default y + help + Multicast routing requires a multicast routing daemon in + addition to kernel support. config KERNEL_IPV6_PIMSM_V2 def_bool n @@ -765,3 +833,30 @@ config KERNEL_DEVKMEM Say Y here if you want to support the /dev/kmem device. The /dev/kmem device is rarely used, but can be used for certain kind of kernel debugging operations. + +config KERNEL_SQUASHFS_FRAGMENT_CACHE_SIZE + int "Number of squashfs fragments cached" + default 2 if (SMALL_FLASH && !LOW_MEMORY_FOOTPRINT) + default 3 + +# +# compile optimiziation setting +# +choice + prompt "Compiler optimization level" + default KERNEL_CC_OPTIMIZE_FOR_SIZE if SMALL_FLASH + +config KERNEL_CC_OPTIMIZE_FOR_PERFORMANCE + bool "Optimize for performance" + help + This is the default optimization level for the kernel, building + with the "-O2" compiler flag for best performance and most + helpful compile-time warnings. + +config KERNEL_CC_OPTIMIZE_FOR_SIZE + bool "Optimize for size" + help + Enabling this option will pass "-Os" instead of "-O2" to + your compiler resulting in a smaller kernel. + +endchoice