diff options
Diffstat (limited to 'Config.in')
| -rw-r--r-- | Config.in | 418 |
1 files changed, 1 insertions, 417 deletions
@@ -274,423 +274,7 @@ menu "Global build settings" comment "Kernel build options" - config KERNEL_DEBUG_FS - bool "Compile the kernel with Debug FileSystem enabled" - default y - help - debugfs is a virtual file system that kernel developers use to put - debugging files into. Enable this option to be able to read and - write to these files. - - config KERNEL_PERF_EVENTS - bool - default n - - config KERNEL_PROFILING - bool "Compile the kernel with profiling enabled" - default n - select KERNEL_PERF_EVENTS - help - Enable the extended profiling support mechanisms used by profilers such - as OProfile. - - config KERNEL_KALLSYMS - bool "Compile the kernel with symbol table information" - default y - help - This will give you more information in stack traces from kernel oopses - - config KERNEL_FTRACE - bool "Compile the kernel with tracing support" - default n - - config KERNEL_FTRACE_SYSCALLS - bool "Trace system calls" - depends on KERNEL_FTRACE - default n - - config KERNEL_ENABLE_DEFAULT_TRACERS - bool "Trace process context switches and events" - depends on KERNEL_FTRACE - default n - - config KERNEL_DEBUG_KERNEL - bool - default n - - config KERNEL_DEBUG_INFO - bool "Compile the kernel with debug information" - default y - select KERNEL_DEBUG_KERNEL - help - This will compile your kernel and modules with debug information. - - config KERNEL_DEBUG_LL_UART_NONE - bool - default n - depends on arm - - config KERNEL_DEBUG_LL - bool - default n - depends on arm - select KERNEL_DEBUG_LL_UART_NONE - help - ARM low level debugging - - config KERNEL_EARLY_PRINTK - bool "Compile the kernel with early printk" - default n - depends on arm - select KERNEL_DEBUG_KERNEL - select KERNEL_DEBUG_LL if arm - help - Compile the kernel with early printk support. - This is only useful for debugging purposes to send messages - over the serial console in early boot. - Enable this to debug early boot problems. - - config KERNEL_AIO - bool "Compile the kernel with asynchronous IO support" - default n - - config KERNEL_DIRECT_IO - bool "Compile the kernel with direct IO support" - default n - - config KERNEL_MAGIC_SYSRQ - bool "Compile the kernel with SysRq support" - default y - - config KERNEL_COREDUMP - bool - - config KERNEL_ELF_CORE - bool "Enable process core dump support" - select KERNEL_COREDUMP - default y - - config KERNEL_PROVE_LOCKING - bool "Enable kernel lock checking" - select KERNEL_DEBUG_KERNEL - default n - - config KERNEL_PRINTK_TIME - bool "Enable printk timestamps" - default y - - config KERNEL_RELAY - bool - - config KERNEL_KEXEC - bool "Enable kexec support" - - config USE_RFKILL - bool "Enable rfkill support" - default RFKILL_SUPPORT - - # - # CGROUP support symbols - # - - config KERNEL_CGROUPS - bool "Enable kernel cgroups" - default n - - if KERNEL_CGROUPS - - config KERNEL_CGROUP_DEBUG - bool "Example debug cgroup subsystem" - default n - help - This option enables a simple cgroup subsystem that - exports useful debugging information about the cgroups - framework. - - config KERNEL_FREEZER - bool - default y if KERNEL_CGROUP_FREEZER - - config KERNEL_CGROUP_FREEZER - bool "Freezer cgroup subsystem" - default n - help - Provides a way to freeze and unfreeze all tasks in a - cgroup. - - config KERNEL_CGROUP_DEVICE - bool "Device controller for cgroups" - default y - help - Provides a cgroup implementing whitelists for devices which - a process in the cgroup can mknod or open. - - config KERNEL_CPUSETS - bool "Cpuset support" - default n - help - This option will let you create and manage CPUSETs which - allow dynamically partitioning a system into sets of CPUs and - Memory Nodes and assigning tasks to run only within those sets. - This is primarily useful on large SMP or NUMA systems. - - config KERNEL_PROC_PID_CPUSET - bool "Include legacy /proc/<pid>/cpuset file" - default n - depends on KERNEL_CPUSETS - - config KERNEL_CGROUP_CPUACCT - bool "Simple CPU accounting cgroup subsystem" - default n - 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 - help - This option enables controller independent resource accounting - infrastructure that works with cgroups. - - config KERNEL_MM_OWNER - bool - default y if KERNEL_MEMCG - - config KERNEL_MEMCG - bool "Memory Resource Controller for Control Groups" - default n - depends on KERNEL_RESOURCE_COUNTERS - help - Provides a memory resource controller that manages both anonymous - memory and page cache. (See Documentation/cgroups/memory.txt) - - Note that setting this option increases fixed memory overhead - associated with each page of memory in the system. By this, - 20(40)bytes/PAGE_SIZE on 32(64)bit system will be occupied by memory - usage tracking struct at boot. Total amount of this is printed out - at boot. - - Only enable when you're ok with these trade offs and really - sure you need the memory resource controller. Even when you enable - this, you can set "cgroup_disable=memory" at your boot option to - disable memory resource controller and you can avoid overheads. - (and lose benefits of memory resource controller) - - This config option also selects MM_OWNER config option, which - could in turn add some fork/exit overhead. - - config KERNEL_MEMCG_SWAP - bool "Memory Resource Controller Swap Extension" - default n - depends on KERNEL_MEMCG - help - Add swap management feature to memory resource controller. When you - enable this, you can limit mem+swap usage per cgroup. In other words, - when you disable this, memory resource controller has no cares to - usage of swap...a process can exhaust all of the swap. This extension - is useful when you want to avoid exhaustion swap but this itself - adds more overheads and consumes memory for remembering information. - Especially if you use 32bit system or small memory system, please - be careful about enabling this. When memory resource controller - is disabled by boot option, this will be automatically disabled and - there will be no overhead from this. Even when you set this config=y, - if boot option "swapaccount=0" is set, swap will not be accounted. - Now, memory usage of swap_cgroup is 2 bytes per entry. If swap page - size is 4096bytes, 512k per 1Gbytes of swap. - - config KERNEL_MEMCG_SWAP_ENABLED - bool "Memory Resource Controller Swap Extension enabled by default" - default n - depends on KERNEL_MEMCG_SWAP - help - Memory Resource Controller Swap Extension comes with its price in - a bigger memory consumption. General purpose distribution kernels - which want to enable the feature but keep it disabled by default - and let the user enable it by swapaccount boot command line - parameter should have this option unselected. - For those who want to have the feature enabled by default should - select this option (if, for some reason, they need to disable it - then swapaccount=0 does the trick). - - - config KERNEL_MEMCG_KMEM - bool "Memory Resource Controller Kernel Memory accounting (EXPERIMENTAL)" - default n - depends on KERNEL_MEMCG - help - The Kernel Memory extension for Memory Resource Controller can limit - the amount of memory used by kernel objects in the system. Those are - fundamentally different from the entities handled by the standard - Memory Controller, which are page-based, and can be swapped. Users of - the kmem extension can use it to guarantee that no group of processes - will ever exhaust kernel resources alone. - - config KERNEL_CGROUP_PERF - bool "Enable perf_event per-cpu per-container group (cgroup) monitoring" - default n - select KERNEL_PERF_EVENTS - help - This option extends the per-cpu mode to restrict monitoring to - threads which belong to the cgroup specified and run on the - designated cpu. - - menuconfig KERNEL_CGROUP_SCHED - bool "Group CPU scheduler" - default n - help - This feature lets CPU scheduler recognize task groups and control CPU - bandwidth allocation to such task groups. It uses cgroups to group - tasks. - - if KERNEL_CGROUP_SCHED - - config KERNEL_FAIR_GROUP_SCHED - bool "Group scheduling for SCHED_OTHER" - default n - - config KERNEL_CFS_BANDWIDTH - bool "CPU bandwidth provisioning for FAIR_GROUP_SCHED" - default n - depends on KERNEL_FAIR_GROUP_SCHED - help - This option allows users to define CPU bandwidth rates (limits) for - tasks running within the fair group scheduler. Groups with no limit - set are considered to be unconstrained and will run with no - restriction. - See tip/Documentation/scheduler/sched-bwc.txt for more information. - - config KERNEL_RT_GROUP_SCHED - bool "Group scheduling for SCHED_RR/FIFO" - default n - help - This feature lets you explicitly allocate real CPU bandwidth - to task groups. If enabled, it will also make it impossible to - schedule realtime tasks for non-root users until you allocate - realtime bandwidth for them. - - endif - - config KERNEL_BLK_CGROUP - bool "Block IO controller" - default y - help - Generic block IO controller cgroup interface. This is the common - cgroup interface which should be used by various IO controlling - policies. - - Currently, CFQ IO scheduler uses it to recognize task groups and - control disk bandwidth allocation (proportional time slice allocation) - to such task groups. It is also used by bio throttling logic in - block layer to implement upper limit in IO rates on a device. - - This option only enables generic Block IO controller infrastructure. - One needs to also enable actual IO controlling logic/policy. For - enabling proportional weight division of disk bandwidth in CFQ, set - CONFIG_CFQ_GROUP_IOSCHED=y; for enabling throttling policy, set - CONFIG_BLK_DEV_THROTTLING=y. - - config KERNEL_DEBUG_BLK_CGROUP - bool "Enable Block IO controller debugging" - default n - depends on KERNEL_BLK_CGROUP - help - Enable some debugging help. Currently it exports additional stat - files in a cgroup which can be useful for debugging. - - config KERNEL_NET_CLS_CGROUP - bool "Control Group Classifier" - default y - - config KERNEL_NETPRIO_CGROUP - bool "Network priority cgroup" - default y - - endif - - # - # Namespace support symbols - # - - config KERNEL_NAMESPACES - bool "Enable kernel namespaces" - default n - - if KERNEL_NAMESPACES - - config KERNEL_UTS_NS - bool "UTS namespace" - default y - help - In this namespace tasks see different info provided - with the uname() system call - - config KERNEL_IPC_NS - bool "IPC namespace" - default y - help - In this namespace tasks work with IPC ids which correspond to - different IPC objects in different namespaces. - - config KERNEL_USER_NS - bool "User namespace (EXPERIMENTAL)" - default y - help - This allows containers, i.e. vservers, to use user namespaces - to provide different user info for different servers. - - config KERNEL_PID_NS - bool "PID Namespaces" - default y - help - Support process id namespaces. This allows having multiple - processes with the same pid as long as they are in different - pid namespaces. This is a building block of containers. - - config KERNEL_NET_NS - bool "Network namespace" - default y - help - Allow user space to create what appear to be multiple instances - of the network stack. - - 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 n - 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. - - endif + source "Config-kernel.in" comment "Package build options" |