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proc: move Kconfig to fs/proc/Kconfig
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Alexey Dobriyan
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Linus Torvalds
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Jul 25, 2008
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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. | ||
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||
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. | ||
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||
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. | ||
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||
The /proc file system is explained in the file | ||
<file:Documentation/filesystems/proc.txt> and on the proc(5) manpage | ||
("man 5 proc"). | ||
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||
This option will enlarge your kernel by about 67 KB. Several | ||
programs depend on this, so everyone should say Y here. | ||
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config PROC_KCORE | ||
bool "/proc/kcore support" if !ARM | ||
depends on PROC_FS && MMU | ||
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config PROC_VMCORE | ||
bool "/proc/vmcore support (EXPERIMENTAL)" | ||
depends on PROC_FS && CRASH_DUMP | ||
default y | ||
help | ||
Exports the dump image of crashed kernel in ELF format. | ||
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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. | ||
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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. |