mm/debug-pagealloc: make debug-pagealloc boottime configurable

Browse source

Now, we have prepared to avoid using debug-pagealloc in boottime.  So
introduce new kernel-parameter to disable debug-pagealloc in boottime, and
makes related functions to be disabled in this case.

Only non-intuitive part is change of guard page functions.  Because guard
page is effective only if debug-pagealloc is enabled, turning off
according to debug-pagealloc is reasonable thing to do.

Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Dave Hansen <dave@sr71.net>
Cc: Michal Nazarewicz <mina86@mina86.com>
Cc: Jungsoo Son <jungsoo.son@lge.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

...

This commit is contained in:

Joonsoo Kim 2014-12-12 16:55:52 -08:00 • committed by Linus Torvalds

parent e30825f186

commit 031bc5743f

9 changed files with 57 additions and 7 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

9

Documentation/kernel-parameters.txt

View file

2

arch/powerpc/mm/hash_utils_64.c

View file

2

arch/powerpc/mm/pgtable_32.c

View file

2

arch/s390/mm/pageattr.c

View file

2

arch/sparc/mm/init_64.c

View file

2

arch/x86/mm/pageattr.c

View file

17

include/linux/mm.h

View file

8

mm/debug-pagealloc.c

View file

20

mm/page_alloc.c

View file