diff options
Diffstat (limited to 'init/Kconfig')
| -rw-r--r-- | init/Kconfig | 24 |
1 files changed, 19 insertions, 5 deletions
diff --git a/init/Kconfig b/init/Kconfig index 9d8cf2d2f840..09c79537ae09 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -531,7 +531,7 @@ config CGROUP_DEVICE config CPUSETS bool "Cpuset support" - depends on SMP && CGROUPS + depends on CGROUPS help This option will let you create and manage CPUSETs which allow dynamically partitioning a system into sets of CPUs and @@ -565,7 +565,7 @@ config CGROUP_MEM_RES_CTLR select MM_OWNER help Provides a memory resource controller that manages both anonymous - memory and page cache. (See Documentation/controllers/memory.txt) + 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, @@ -597,6 +597,8 @@ config CGROUP_MEM_RES_CTLR_SWAP 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 "noswapaccount" 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. endif # CGROUPS @@ -687,7 +689,7 @@ config PID_NS depends on NAMESPACES && EXPERIMENTAL help Support process id namespaces. This allows having multiple - process with the same pid as long as they are in different + processes with the same pid as long as they are in different pid namespaces. This is a building block of containers. Unless you want to work with an experimental feature @@ -952,7 +954,7 @@ config COMPAT_BRK Randomizing heap placement makes heap exploits harder, but it also breaks ancient binaries (including anything libc5 based). This option changes the bootup default to heap randomization - disabled, and can be overriden runtime by setting + disabled, and can be overridden at runtime by setting /proc/sys/kernel/randomize_va_space to 2. On non-ancient distros (post-2000 ones) N is usually a safe choice. @@ -1012,6 +1014,18 @@ config MARKERS source "arch/Kconfig" +config SLOW_WORK + default n + bool "Enable slow work thread pool" + help + The slow work thread pool provides a number of dynamically allocated + threads that can be used by the kernel to perform operations that + take a relatively long time. + + An example of this would be CacheFiles doing a path lookup followed + by a series of mkdirs and a create call, all of which have to touch + disk. + endmenu # General setup config HAVE_GENERIC_DMA_COHERENT @@ -1110,7 +1124,7 @@ config INIT_ALL_POSSIBLE cpu_possible_map, some of them chose to initialize cpu_possible_map with all 1s, and others with all 0s. When they were centralised, it was better to provide this option than to break all the archs - and have several arch maintainers persuing me down dark alleys. + and have several arch maintainers pursuing me down dark alleys. config STOP_MACHINE bool |