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* sysdeps/unix/sysv/linux/sched_setaffinity.c

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(__sched_setaffinity_new): If syscall was successful and
	RESET_VGETCPU_CACHE is defined, use it before returning.
	* sysdeps/unix/sysv/linux/x86_64/sched_setaffinity.c: New file.
This commit is contained in:
Ulrich Drepper 2007-05-10 23:38:55 +00:00
parent f9bf102dd6
commit 3771196d1d
7 changed files with 58 additions and 4 deletions
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5
ChangeLog
View file

@ -1,5 +1,10 @@
2007-05-10 Ulrich Drepper <drepper@redhat.com>
* sysdeps/unix/sysv/linux/sched_setaffinity.c
(__sched_setaffinity_new): If syscall was successful and
RESET_VGETCPU_CACHE is defined, use it before returning.
* sysdeps/unix/sysv/linux/x86_64/sched_setaffinity.c: New file.
* io/sys/stat.h: Make sure struct timespec is defined for
__USE_ATFILE.

2
io/sys/stat.h
View file

@ -29,7 +29,7 @@
#include <bits/types.h> /* For __mode_t and __dev_t. */
#if defined __USE_XOPEN || defined __USE_XOPEN2K || defined __USE_MISC \
|| __USE_ATFILE
|| defined __USE_ATFILE
# if defined __USE_XOPEN || defined __USE_XOPEN2K
# define __need_time_t
# endif

7
nptl/ChangeLog
View file

@ -1,3 +1,10 @@
2007-05-10 Ulrich Drepper <drepper@redhat.com>
* sysdeps/unix/sysv/linux/pthread_setaffinity.c
(__pthread_setaffinity_new): If syscall was successful and
RESET_VGETCPU_CACHE is defined, use it before returning.
* sysdeps/unix/sysv/linux/x86_64/pthread_setaffinity.c: New file.
2007-05-10 Jakub Jelinek <jakub@redhat.com>
[BZ #4455]

8
nptl/sysdeps/unix/sysv/linux/pthread_setaffinity.c
View file

@ -1,4 +1,4 @@
/* Copyright (C) 2003, 2004, 2006 Free Software Foundation, Inc.
/* Copyright (C) 2003, 2004, 2006, 2007 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
@ -79,6 +79,12 @@ __pthread_setaffinity_new (pthread_t th, size_t cpusetsize,
res = INTERNAL_SYSCALL (sched_setaffinity, err, 3, pd->tid, cpusetsize,
cpuset);
#ifdef RESET_VGETCPU_CACHE
if (!INTERNAL_SYSCALL_ERROR_P (res, err))
RESET_VGETCPU_CACHE ();
#endif
return (INTERNAL_SYSCALL_ERROR_P (res, err)
? INTERNAL_SYSCALL_ERRNO (res, err)
: 0);

14
nptl/sysdeps/unix/sysv/linux/x86_64/pthread_setaffinity.c Normal file
View file

@ -0,0 +1,14 @@
#include <tls.h>
#define RESET_VGETCPU_CACHE() \
do { \
asm volatile ("movl %0, %%fs:%P1\n\t" \
"movl %0, %%fs:%P2" \
: \
: "ir" (0), "i" (offsetof (struct pthread, \
header.vgetcpu_cache[0])), \
"i" (offsetof (struct pthread, \
header.vgetcpu_cache[1]))); \
} while (0)
#include "../pthread_setaffinity.c"

12
sysdeps/unix/sysv/linux/sched_setaffinity.c
View file

@ -1,4 +1,5 @@
/* Copyright (C) 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
/* Copyright (C) 2002, 2003, 2004, 2005, 2007
Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@ -67,7 +68,14 @@ __sched_setaffinity_new (pid_t pid, size_t cpusetsize, const cpu_set_t *cpuset)
return -1;
}
return INLINE_SYSCALL (sched_setaffinity, 3, pid, cpusetsize, cpuset);
int result = INLINE_SYSCALL (sched_setaffinity, 3, pid, cpusetsize, cpuset);
#ifdef RESET_VGETCPU_CACHE
if (result != -1)
RESET_VGETCPU_CACHE ();
#endif
return result;
}
versioned_symbol (libc, __sched_setaffinity_new, sched_setaffinity,
GLIBC_2_3_4);

14
sysdeps/unix/sysv/linux/x86_64/sched_setaffinity.c Normal file
View file

@ -0,0 +1,14 @@
#include <tls.h>
#define RESET_VGETCPU_CACHE() \
do { \
asm volatile ("movl %0, %%fs:%P1\n\t" \
"movl %0, %%fs:%P2" \
: \
: "ir" (0), "i" (offsetof (struct pthread, \
header.vgetcpu_cache[0])), \
"i" (offsetof (struct pthread, \
header.vgetcpu_cache[1]))); \
} while (0)
#include "../sched_setaffinity.c"