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authorUlrich Drepper <drepper@gmail.com>2011-05-14 19:30:37 -0400
committerUlrich Drepper <drepper@gmail.com>2011-05-14 19:30:37 -0400
commit2fc54d6f9f7d6770ecb0e0bb5a3b977965bfe273 (patch)
tree0a877a640655c1c919d3196d8b28ab11c09a261d /sysdeps/pthread/aio_misc.c
parent98d76b46d2db565b22be647d611cc2649ba6ff87 (diff)
downloadglibc-2fc54d6f9f7d6770ecb0e0bb5a3b977965bfe273.tar.gz
Fix initialization of optimization values for AIO
Diffstat (limited to 'sysdeps/pthread/aio_misc.c')
-rw-r--r--sysdeps/pthread/aio_misc.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/sysdeps/pthread/aio_misc.c b/sysdeps/pthread/aio_misc.c
index c82acbbc2d..ca3d1111e8 100644
--- a/sysdeps/pthread/aio_misc.c
+++ b/sysdeps/pthread/aio_misc.c
@@ -1,5 +1,5 @@
/* Handle general operations.
- Copyright (C) 1997, 1998, 1999, 2000, 2001, 2003, 2004, 2006, 2007, 2009
+ Copyright (C) 1997-2001, 2003, 2004, 2006, 2007, 2009, 2011
Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
@@ -26,6 +26,7 @@
#include <pthread.h>
#include <stdlib.h>
#include <unistd.h>
+#include <sys/param.h>
#include <sys/stat.h>
#include <sys/time.h>
#include <aio_misc.h>
@@ -87,7 +88,7 @@ static int idle_thread_count;
static struct aioinit optim =
{
20, /* int aio_threads; Maximal number of threads. */
- 64, /* int aio_num; Number of expected simultanious requests. */
+ 64, /* int aio_num; Number of expected simultaneous requests. */
0,
0,
0,
@@ -282,9 +283,10 @@ __aio_init (const struct aioinit *init)
if (pool == NULL)
{
optim.aio_threads = init->aio_threads < 1 ? 1 : init->aio_threads;
+ assert (powerof2 (ENTRIES_PER_ROW));
optim.aio_num = (init->aio_num < ENTRIES_PER_ROW
? ENTRIES_PER_ROW
- : init->aio_num & ~ENTRIES_PER_ROW);
+ : init->aio_num & ~(ENTRIES_PER_ROW - 1));
}
if (init->aio_idle_time != 0)