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From: Zach Brown <zach.brown@oracle.com>
To: linux-kernel@vger.kernel.org
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
	Ingo Molnar <mingo@elte.hu>, Ulrich Drepper <drepper@redhat.com>,
	Arjan van de Ven <arjan@infradead.org>,
	Andrew Morton <akpm@zip.com.au>,
	Alan Cox <alan@lxorguk.ukuu.org.uk>,
	Evgeniy Polyakov <johnpol@2ka.mipt.ru>,
	"David S. Miller" <davem@davemloft.net>,
	Suparna Bhattacharya <suparna@in.ibm.com>,
	Davide Libenzi <davidel@xmailserver.org>,
	Jens Axboe <jens.axboe@oracle.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	Dan Williams <dan.j.williams@gmail.com>,
	Jeff Moyer <jmoyer@redhat.com>,
	Simon Holm Thogersen <odie@cs.aau.dk>,
	suresh.b.siddha@intel.com
Subject: [PATCH 4/6] syslets: add indirect args
Date: Thu,  6 Dec 2007 15:20:17 -0800	[thread overview]
Message-ID: <1196983219370-git-send-email-zach.brown@oracle.com> (raw)
In-Reply-To: <11969832192868-git-send-email-zach.brown@oracle.com>

This adds the syslet indirect args to the indirect_params union.

This is broken, but it lets us simply demonstrate the rest of the syslet
universe around the indirect argument passing convention.

A caller could well want to perform a syscall that uses indirect arguments as a
syscall.  Maybe we turn indirect_params into a struct that contains a union for
arguments which can never be used concurrently.  This needs wider discussion.

Signed-off-by: Zach Brown <zach.brown@oracle.com>

diff --git a/include/linux/indirect.h b/include/linux/indirect.h
index 97f9ac4..5d5abd7 100644
--- a/include/linux/indirect.h
+++ b/include/linux/indirect.h
@@ -3,6 +3,7 @@
 #define _LINUX_INDIRECT_H
 
 #include <asm/indirect.h>
+#include <linux/syslet-abi.h>
 
 
 /* IMPORTANT:
@@ -14,6 +15,7 @@ union indirect_params {
   struct {
     int flags;
   } file_flags;
+  struct syslet_args syslet;
 };
 
 #define INDIRECT_PARAM(set, name) current->indirect_params.set.name
-- 
1.5.2.2


  reply	other threads:[~2007-12-06 23:21 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-12-06 23:20 syslets v7: back to basics Zach Brown
2007-12-06 23:20 ` [PATCH 1/6] indirect: use asmlinkage in i386 syscall table prototype Zach Brown
2007-12-06 23:20   ` [PATCH 2/6] syslet: asm-generic support to disable syslets Zach Brown
2007-12-06 23:20     ` [PATCH 3/6] syslet: introduce abi structs Zach Brown
2007-12-06 23:20       ` Zach Brown [this message]
2007-12-06 23:20         ` [PATCH 5/6] syslets: add generic syslets infrastructure Zach Brown
2007-12-06 23:20           ` [PATCH 6/6] syslets: add both 32bit and 64bit x86 syslet support Zach Brown
2007-12-07 11:55           ` [PATCH 5/6] syslets: add generic syslets infrastructure Evgeniy Polyakov
2007-12-07 18:24             ` Zach Brown
2008-01-09  2:03           ` Rusty Russell
2008-01-09  3:00             ` Zach Brown
2008-01-09  3:48               ` Rusty Russell
2008-01-09 18:16                 ` Zach Brown
2008-01-09 22:04                   ` Rusty Russell
2008-01-09 22:58                     ` Linus Torvalds
2008-01-09 23:05                       ` Linus Torvalds
2008-01-09 23:47                       ` Zach Brown
2008-01-10  1:18                       ` Rusty Russell
2008-01-09 23:15                     ` Davide Libenzi
2008-01-10  5:41                   ` Jeff Garzik
2007-12-08 12:40   ` [PATCH 1/6] indirect: use asmlinkage in i386 syscall table prototype Simon Holm Thøgersen
2007-12-08 21:22     ` Zach Brown
2007-12-08 12:52 ` [PATCH] Fix casting on architectures with 32-bit pointers/longs Simon Holm Thøgersen
2007-12-10 19:46 ` syslets v7: back to basics Jens Axboe
2007-12-10 21:30 ` Phillip Susi
2007-12-10 22:15   ` Zach Brown

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