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[PATCH] consolidate SIGEV_PAD_SIZE

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Discussing with Matthew Wilcox some of his outstanding patches lead me to
this patch (among others).

The preamble in struct sigevent can be expressed independently of the
architecture.

Also use __ARCH_SI_PREAMBLE_SIZE on ia64.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Stephen Rothwell 2005-05-01 08:59:08 -07:00 committed by Linus Torvalds
parent 696f9486d0
commit a71c1ab50a
7 changed files with 11 additions and 20 deletions
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2
include/asm-alpha/siginfo.h
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@ -4,8 +4,6 @@
#define __ARCH_SI_PREAMBLE_SIZE (4 * sizeof(int))
#define __ARCH_SI_TRAPNO
#define SIGEV_PAD_SIZE ((SIGEV_MAX_SIZE/sizeof(int)) - 4)
#include <asm-generic/siginfo.h>
#endif

13
include/asm-generic/siginfo.h
View File

@ -236,11 +236,18 @@ typedef struct siginfo {
#define SIGEV_THREAD 2 /* deliver via thread creation */
#define SIGEV_THREAD_ID 4 /* deliver to thread */
#define SIGEV_MAX_SIZE 64
#ifndef SIGEV_PAD_SIZE
#define SIGEV_PAD_SIZE ((SIGEV_MAX_SIZE/sizeof(int)) - 3)
/*
* This works because the alignment is ok on all current architectures
* but we leave open this being overridden in the future
*/
#ifndef __ARCH_SIGEV_PREAMBLE_SIZE
#define __ARCH_SIGEV_PREAMBLE_SIZE (sizeof(int) * 2 + sizeof(sigval_t))
#endif
#define SIGEV_MAX_SIZE 64
#define SIGEV_PAD_SIZE ((SIGEV_MAX_SIZE - __ARCH_SIGEV_PREAMBLE_SIZE) \
/ sizeof(int))
typedef struct sigevent {
sigval_t sigev_value;
int sigev_signo;

4
include/asm-ia64/siginfo.h
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@ -8,9 +8,7 @@
* David Mosberger-Tang <davidm@hpl.hp.com>, Hewlett-Packard Co
*/
#define SI_PAD_SIZE ((SI_MAX_SIZE/sizeof(int)) - 4)
#define SIGEV_PAD_SIZE ((SIGEV_MAX_SIZE/sizeof(int)) - 4)
#define __ARCH_SI_PREAMBLE_SIZE (4 * sizeof(int))
#define HAVE_ARCH_SIGINFO_T
#define HAVE_ARCH_COPY_SIGINFO

2
include/asm-mips/siginfo.h
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@ -11,8 +11,6 @@
#include <linux/config.h>
#define SIGEV_HEAD_SIZE (sizeof(long) + 2*sizeof(int))
#define SIGEV_PAD_SIZE ((SIGEV_MAX_SIZE-SIGEV_HEAD_SIZE) / sizeof(int))
#undef __ARCH_SI_TRAPNO /* exception code needs to fill this ... */
#define HAVE_ARCH_SIGINFO_T

6
include/asm-s390/siginfo.h
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@ -13,12 +13,6 @@
#define __ARCH_SI_PREAMBLE_SIZE (4 * sizeof(int))
#endif
#ifdef CONFIG_ARCH_S390X
#define SIGEV_PAD_SIZE ((SIGEV_MAX_SIZE/sizeof(int)) - 4)
#else
#define SIGEV_PAD_SIZE ((SIGEV_MAX_SIZE/sizeof(int)) - 3)
#endif
#include <asm-generic/siginfo.h>
#endif

2
include/asm-sparc64/siginfo.h
View File

@ -3,8 +3,6 @@
#define SI_PAD_SIZE32 ((SI_MAX_SIZE/sizeof(int)) - 3)
#define SIGEV_PAD_SIZE ((SIGEV_MAX_SIZE/sizeof(int)) - 4)
#define __ARCH_SI_PREAMBLE_SIZE (4 * sizeof(int))
#define __ARCH_SI_TRAPNO
#define __ARCH_SI_BAND_T int

2
include/asm-x86_64/siginfo.h
View File

@ -3,8 +3,6 @@
#define __ARCH_SI_PREAMBLE_SIZE (4 * sizeof(int))
#define SIGEV_PAD_SIZE ((SIGEV_MAX_SIZE/sizeof(int)) - 4)
#include <asm-generic/siginfo.h>
#endif