GitHub-Mirror/Star64_linux
2
0
Fork 0
mirror of https://github.com/Fishwaldo/Star64_linux.git synced 2025-04-09 16:04:01 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

mm/Kconfig: correct description of DEFERRED_STRUCT_PAGE_INIT

Browse source 
The description mentions kswapd threads, while the deferred struct page
initialization is actually done by one-off "pgdatinitX" threads.

Fix the description so that potentially users are not confused about
pgdatinit threads using CPU after boot instead of kswapd.

Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
Acked-by: Mel Gorman <mgorman@techsingularity.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Vlastimil Babka 2016-02-05 15:36:21 -08:00 • committed by Linus Torvalds
parent 1f1ffb8a15
commit 1ce221036b
1 changed files with 5 additions and 4 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

9
mm/Kconfig
View file

@ -624,7 +624,7 @@ config ARCH_SUPPORTS_DEFERRED_STRUCT_PAGE_INIT
bool bool
config DEFERRED_STRUCT_PAGE_INIT config DEFERRED_STRUCT_PAGE_INIT
bool "Defer initialisation of struct pages to kswapd" bool "Defer initialisation of struct pages to kthreads"
default n default n
depends on ARCH_SUPPORTS_DEFERRED_STRUCT_PAGE_INIT depends on ARCH_SUPPORTS_DEFERRED_STRUCT_PAGE_INIT
depends on MEMORY_HOTPLUG depends on MEMORY_HOTPLUG
@ -633,9 +633,10 @@ config DEFERRED_STRUCT_PAGE_INIT
single thread. On very large machines this can take a considerable single thread. On very large machines this can take a considerable
amount of time. If this option is set, large machines will bring up amount of time. If this option is set, large machines will bring up
a subset of memmap at boot and then initialise the rest in parallel a subset of memmap at boot and then initialise the rest in parallel
when kswapd starts. This has a potential performance impact on by starting one-off "pgdatinitX" kernel thread for each node X. This
processes running early in the lifetime of the systemm until kswapd has a potential performance impact on processes running early in the
finishes the initialisation. lifetime of the system until these kthreads finish the
initialisation.
config IDLE_PAGE_TRACKING config IDLE_PAGE_TRACKING
bool "Enable idle page tracking" bool "Enable idle page tracking"