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authorPaul Jackson <pj@sgi.com>2006-12-22 04:06:10 -0500
committerLinus Torvalds <torvalds@woody.osdl.org>2006-12-22 11:55:46 -0500
commit2aea4fb61609ba7ef82f7dc6fca116bda88816e1 (patch)
treee6281c312412e75d4e15691231165370ae0c3168
parent0b76e20b27d20f7cb240e6b1b2dbebaa1b7f9b60 (diff)
[PATCH] CONFIG_VM_EVENT_COUNTER comment decrustify
The VM event counters, enabled by CONFIG_VM_EVENT_COUNTERS, which provides VM event counters in /proc/vmstat, has become more essential to non-EMBEDDED kernel configurations than they were in the past. Comments in the code and the Kconfig configuration explanation were stale, downplaying their role excessively. Refresh those comments to correctly reflect the current role of VM event counters. Signed-off-by: Paul Jackson <pj@sgi.com> Acked-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
-rw-r--r--include/linux/vmstat.h5
-rw-r--r--init/Kconfig8
2 files changed, 7 insertions, 6 deletions
diff --git a/include/linux/vmstat.h b/include/linux/vmstat.h
index c89df55f6e03..532360010919 100644
--- a/include/linux/vmstat.h
+++ b/include/linux/vmstat.h
@@ -10,8 +10,9 @@
10/* 10/*
11 * Light weight per cpu counter implementation. 11 * Light weight per cpu counter implementation.
12 * 12 *
13 * Counters should only be incremented and no critical kernel component 13 * Counters should only be incremented. You need to set EMBEDDED
14 * should rely on the counter values. 14 * to disable VM_EVENT_COUNTERS. Things like procps (vmstat,
15 * top, etc) use /proc/vmstat and depend on these counters.
15 * 16 *
16 * Counters are handled completely inline. On many platforms the code 17 * Counters are handled completely inline. On many platforms the code
17 * generated will simply be the increment of a global address. 18 * generated will simply be the increment of a global address.
diff --git a/init/Kconfig b/init/Kconfig
index f000edb3bb7a..9b1adb176ea8 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -461,10 +461,10 @@ config VM_EVENT_COUNTERS
461 default y 461 default y
462 bool "Enable VM event counters for /proc/vmstat" if EMBEDDED 462 bool "Enable VM event counters for /proc/vmstat" if EMBEDDED
463 help 463 help
464 VM event counters are only needed to for event counts to be 464 VM event counters are needed for event counts to be shown.
465 shown. They have no function for the kernel itself. This 465 This option allows the disabling of the VM event counters
466 option allows the disabling of the VM event counters. 466 on EMBEDDED systems. /proc/vmstat will only show page counts
467 /proc/vmstat will only show page counts. 467 if VM event counters are disabled.
468 468
469endmenu # General setup 469endmenu # General setup
470 470