[net-next-2.6.git] / fs / proc / Kconfig

config PROC_FS
	bool "/proc file system support" if EMBEDDED
	default y
	help
	  This is a virtual file system providing information about the status
	  of the system. "Virtual" means that it doesn't take up any space on
	  your hard disk: the files are created on the fly by the kernel when
	  you try to access them. Also, you cannot read the files with older
	  version of the program less: you need to use more or cat.

	  It's totally cool; for example, "cat /proc/interrupts" gives
	  information about what the different IRQs are used for at the moment
	  (there is a small number of Interrupt ReQuest lines in your computer
	  that are used by the attached devices to gain the CPU's attention --
	  often a source of trouble if two devices are mistakenly configured
	  to use the same IRQ). The program procinfo to display some
	  information about your system gathered from the /proc file system.

	  Before you can use the /proc file system, it has to be mounted,
	  meaning it has to be given a location in the directory hierarchy.
	  That location should be /proc. A command such as "mount -t proc proc
	  /proc" or the equivalent line in /etc/fstab does the job.

	  The /proc file system is explained in the file
	  <file:Documentation/filesystems/proc.txt> and on the proc(5) manpage
	  ("man 5 proc").

	  This option will enlarge your kernel by about 67 KB. Several
	  programs depend on this, so everyone should say Y here.

config PROC_KCORE
	bool "/proc/kcore support" if !ARM
	depends on PROC_FS && MMU

config PROC_VMCORE
	bool "/proc/vmcore support"
	depends on PROC_FS && CRASH_DUMP
	default y
        help
        Exports the dump image of crashed kernel in ELF format.

config PROC_SYSCTL
	bool "Sysctl support (/proc/sys)" if EMBEDDED
	depends on PROC_FS
	select SYSCTL
	default y
	---help---
	  The sysctl interface provides a means of dynamically changing
	  certain kernel parameters and variables on the fly without requiring
	  a recompile of the kernel or reboot of the system.  The primary
	  interface is through /proc/sys.  If you say Y here a tree of
	  modifiable sysctl entries will be generated beneath the
          /proc/sys directory. They are explained in the files
	  in <file:Documentation/sysctl/>.  Note that enabling this
	  option will enlarge the kernel by at least 8 KB.

	  As it is generally a good thing, you should say Y here unless
	  building a kernel for install/rescue disks or your system is very
	  limited in memory.

config PROC_PAGE_MONITOR
 	default y
	depends on PROC_FS && MMU
	bool "Enable /proc page monitoring" if EMBEDDED
 	help
	  Various /proc files exist to monitor process memory utilization:
	  /proc/pid/smaps, /proc/pid/clear_refs, /proc/pid/pagemap,
	  /proc/kpagecount, and /proc/kpageflags. Disabling these
          interfaces will reduce the size of the kernel by approximately 4kb.
Commit	Line	Data
6eedf8d3 AD	1	config PROC_FS
	2	bool "/proc file system support" if EMBEDDED
	3	default y
	4	help
	5	This is a virtual file system providing information about the status
	6	of the system. "Virtual" means that it doesn't take up any space on
	7	your hard disk: the files are created on the fly by the kernel when
	8	you try to access them. Also, you cannot read the files with older
	9	version of the program less: you need to use more or cat.
	10
	11	It's totally cool; for example, "cat /proc/interrupts" gives
	12	information about what the different IRQs are used for at the moment
	13	(there is a small number of Interrupt ReQuest lines in your computer
	14	that are used by the attached devices to gain the CPU's attention --
	15	often a source of trouble if two devices are mistakenly configured
	16	to use the same IRQ). The program procinfo to display some
	17	information about your system gathered from the /proc file system.
	18
	19	Before you can use the /proc file system, it has to be mounted,
	20	meaning it has to be given a location in the directory hierarchy.
	21	That location should be /proc. A command such as "mount -t proc proc
	22	/proc" or the equivalent line in /etc/fstab does the job.
	23
	24	The /proc file system is explained in the file
	25	<file:Documentation/filesystems/proc.txt> and on the proc(5) manpage
	26	("man 5 proc").
	27
	28	This option will enlarge your kernel by about 67 KB. Several
	29	programs depend on this, so everyone should say Y here.
	30
	31	config PROC_KCORE
	32	bool "/proc/kcore support" if !ARM
	33	depends on PROC_FS && MMU
	34
	35	config PROC_VMCORE
a4f7326d WC	36	bool "/proc/vmcore support"
a4f7326d WC	37	depends on PROC_FS && CRASH_DUMP
6eedf8d3 AD	38	default y
	39	help
	40	Exports the dump image of crashed kernel in ELF format.
	41
	42	config PROC_SYSCTL
	43	bool "Sysctl support (/proc/sys)" if EMBEDDED
	44	depends on PROC_FS
	45	select SYSCTL
	46	default y
	47	---help---
	48	The sysctl interface provides a means of dynamically changing
	49	certain kernel parameters and variables on the fly without requiring
	50	a recompile of the kernel or reboot of the system. The primary
	51	interface is through /proc/sys. If you say Y here a tree of
	52	modifiable sysctl entries will be generated beneath the
	53	/proc/sys directory. They are explained in the files
	54	in <file:Documentation/sysctl/>. Note that enabling this
	55	option will enlarge the kernel by at least 8 KB.
	56
	57	As it is generally a good thing, you should say Y here unless
	58	building a kernel for install/rescue disks or your system is very
	59	limited in memory.
53167a3e AD	60
	61	config PROC_PAGE_MONITOR
	62	default y
	63	depends on PROC_FS && MMU
	64	bool "Enable /proc page monitoring" if EMBEDDED
	65	help
	66	Various /proc files exist to monitor process memory utilization:
	67	/proc/pid/smaps, /proc/pid/clear_refs, /proc/pid/pagemap,
	68	/proc/kpagecount, and /proc/kpageflags. Disabling these
	69	interfaces will reduce the size of the kernel by approximately 4kb.