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authorMauro Carvalho Chehab <mchehab@infradead.org>2008-07-27 17:25:57 +0200
committerMauro Carvalho Chehab <mchehab@infradead.org>2008-07-27 17:25:57 +0200
commit50cb993ea6cd187bfed085cb3e0747066edeb02f (patch)
tree61edac62c6c5bc07c59e4369c50c6821ad77f2c0 /fs/proc/Kconfig
parentV4L/DVB (8534): remove select's of FW_LOADER (diff)
parentMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rol... (diff)
downloadlinux-50cb993ea6cd187bfed085cb3e0747066edeb02f.tar.xz
linux-50cb993ea6cd187bfed085cb3e0747066edeb02f.zip
Merge ../linux-2.6
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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.
+
+ 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 (EXPERIMENTAL)"
+ 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.