[merged] kernel-relayc-relay_alloc_page_array-use-vzalloc.patch removed from -mm tree

[akpm@linux-foundation.org]

The patch titled
     kernel/relay.c: relay_alloc_page_array() use vzalloc()
has been removed from the -mm tree.  Its filename was
     kernel-relayc-relay_alloc_page_array-use-vzalloc.patch

This patch was dropped because it was merged into mainline or a subsystem tree

The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/

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Subject: kernel/relay.c: relay_alloc_page_array() use vzalloc()
From: Jesper Juhl <jj@chaosbits.net>

We can optimize kernel/relay.c::relay_alloc_page_array() slightly by using
vzalloc. The patch makes these changes:

 - use vzalloc instead of vmalloc+memset.
 - remove redundant local variable 'array'.
 - declare local 'pa_size' as const.

Cuts down nicely on both source and object-code size.

Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Cc: Tom Zanussi <zanussi@us.ibm.com>
Cc: Karim Yaghmour <karim@opersys.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Cc: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 kernel/relay.c |   15 ++++-----------
 1 file changed, 4 insertions(+), 11 deletions(-)

diff -puN kernel/relay.c~kernel-relayc-relay_alloc_page_array-use-vzalloc kernel/relay.c
--- a/kernel/relay.c~kernel-relayc-relay_alloc_page_array-use-vzalloc
+++ a/kernel/relay.c
@@ -70,17 +70,10 @@ static const struct vm_operations_struct
  */
 static struct page **relay_alloc_page_array(unsigned int n_pages)
 {
-	struct page **array;
-	size_t pa_size = n_pages * sizeof(struct page *);