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mm/slub.c: parse slub_debug O option in switch statement

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By moving the O option detection into the switch statement, we allow this
parameter to be combined with other options correctly.  Previously options
like slub_debug=OFZ would only detect the 'o' and use DEBUG_DEFAULT_FLAGS
to fill in the rest of the flags.

Signed-off-by: Chris J Arges <chris.j.arges@canonical.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: Pekka Enberg <penberg@kernel.org>
Acked-by: David Rientjes <rientjes@google.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:
Chris J Arges
2015-04-14 15:44:25 -07:00
committed by Linus Torvalds
parent ef2a5153b4
commit 08303a73c6
1 changed files with 7 additions and 9 deletions
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16
mm/slub.c
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@@ -1137,15 +1137,6 @@ static int __init setup_slub_debug(char *str)
*/ */
goto check_slabs; goto check_slabs;
if (tolower(*str) == 'o') {
/*
* Avoid enabling debugging on caches if its minimum order
* would increase as a result.
*/
disable_higher_order_debug = 1;
goto out;
}
slub_debug = 0; slub_debug = 0;
if (*str == '-') if (*str == '-')
/* /*
@@ -1176,6 +1167,13 @@ static int __init setup_slub_debug(char *str)
case 'a': case 'a':
slub_debug |= SLAB_FAILSLAB; slub_debug |= SLAB_FAILSLAB;
break; break;
case 'o':
/*
* Avoid enabling debugging on caches if its minimum
* order would increase as a result.
*/
disable_higher_order_debug = 1;
break;
default: default:
pr_err("slub_debug option '%c' unknown. skipped\n", pr_err("slub_debug option '%c' unknown. skipped\n",
*str); *str);