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mm/slub: correct the comment in calculate_order() 

In calculate_order(), it tries to calculate the best order by adjusting
the fraction and min_objects.  On each iteration on min_objects, fraction
iterates on 16, 8, 4.  Which means the acceptable waste increases with
1/16, 1/8, 1/4.

This patch corrects the comment according to the code.

Signed-off-by: Wei Yang <weiyang@linux.vnet.ibm.com>
Acked-by: Christoph Lameter <cl@linux.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: 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:
Wei Yang 2015-11-05 18:45:46 -08:00 committed by Linus Torvalds
parent 40911a798b
commit 422ff4d70c
1 changed files with 1 additions and 1 deletions
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mm/slub.c
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@ -2943,7 +2943,7 @@ static inline int calculate_order(int size, int reserved)
* works by first attempting to generate a layout with
* the best configuration and backing off gradually.
*
* First we reduce the acceptable waste in a slab. Then
* First we increase the acceptable waste in a slab. Then
* we reduce the minimum objects required in a slab.
*/
min_objects = slub_min_objects;