[dm-devel] [PATCH 01/10] dm snapshot: Use kmalloc_array() in init_origin_hash()
Joe Perches
joe at perches.com
Thu Sep 29 20:56:26 UTC 2016
On Thu, 2016-09-29 at 22:39 +0200, Paul Bolle wrote:
> On Thu, 2016-09-29 at 13:24 -0700, Joe Perches wrote:
> > On Thu, 2016-09-29 at 21:43 +0200, Paul Bolle wrote:
> > > Why doesn't that regex match on "ORIGIN_HASH_SIZE"?
> > It does match.
> If that regex does match, it being part of a negative test, the
> specific checkpatch rule should be silent, shouldn't it?
'cause I forgot to trim() the original $4 and $10 matches.
Oh well.
It doesn't matter match either way to me.
The case for the unnecessary multiply with <= gcc 4.8 was
removed with:
commit 91c6a05f72a996bee5133e76374ab3ad7d3b9b72
Author: Alexey Dobriyan <adobriyan at gmail.com>
Date: Tue Jul 26 15:22:08 2016 -0700
mm: faster kmalloc_array(), kcalloc()
When both arguments to kmalloc_array() or kcalloc() are known at compile
time then their product is known at compile time but search for kmalloc
cache happens at runtime not at compile time.
Link: http://lkml.kernel.org/r/20160627213454.GA2440@p183.telecom.by
Signed-off-by: Alexey Dobriyan <adobriyan at gmail.com>
Cc: Christoph Lameter <cl at linux.com>
Cc: Pekka Enberg <penberg at kernel.org>
Cc: David Rientjes <rientjes at google.com>
Cc: Joonsoo Kim <iamjoonsoo.kim at lge.com>
Signed-off-by: Andrew Morton <akpm at linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds at linux-foundation.org>
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