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1config PROC_FS
2	bool "/proc file system support" if EXPERT
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
31config PROC_KCORE
32	bool "/proc/kcore support" if !ARM
33	depends on PROC_FS && MMU
34	help
35	  Provides a virtual ELF core file of the live kernel.  This can
36	  be read with gdb and other ELF tools.  No modifications can be
37	  made using this mechanism.
38
39config PROC_VMCORE
40	bool "/proc/vmcore support"
41	depends on PROC_FS && CRASH_DUMP
42	default y
43        help
44        Exports the dump image of crashed kernel in ELF format.
45
46config PROC_SYSCTL
47	bool "Sysctl support (/proc/sys)" if EXPERT
48	depends on PROC_FS
49	select SYSCTL
50	default y
51	---help---
52	  The sysctl interface provides a means of dynamically changing
53	  certain kernel parameters and variables on the fly without requiring
54	  a recompile of the kernel or reboot of the system.  The primary
55	  interface is through /proc/sys.  If you say Y here a tree of
56	  modifiable sysctl entries will be generated beneath the
57          /proc/sys directory. They are explained in the files
58	  in <file:Documentation/sysctl/>.  Note that enabling this
59	  option will enlarge the kernel by at least 8 KB.
60
61	  As it is generally a good thing, you should say Y here unless
62	  building a kernel for install/rescue disks or your system is very
63	  limited in memory.
64
65config PROC_PAGE_MONITOR
66 	default y
67	depends on PROC_FS && MMU
68	bool "Enable /proc page monitoring" if EXPERT
69 	help
70	  Various /proc files exist to monitor process memory utilization:
71	  /proc/pid/smaps, /proc/pid/clear_refs, /proc/pid/pagemap,
72	  /proc/kpagecount, and /proc/kpageflags. Disabling these
73          interfaces will reduce the size of the kernel by approximately 4kb.
74
75config PROC_CHILDREN
76	bool "Include /proc/<pid>/task/<tid>/children file"
77	default n
78	help
79	  Provides a fast way to retrieve first level children pids of a task. See
80	  <file:Documentation/filesystems/proc.txt> for more information.
81
82	  Say Y if you are running any user-space software which takes benefit from
83	  this interface. For example, rkt is such a piece of software.
84
85config PROC_UID
86	bool "Include /proc/uid/ files"
87	default y
88	depends on PROC_FS && RT_MUTEXES
89	help
90	Provides aggregated per-uid information under /proc/uid.
91