From 1bddcc50c27c8ca39a62a1d37e3928707be8f850 Mon Sep 17 00:00:00 2001
From: David Wu <davidwu@arcturusnetworks.com>
Date: Mon, 4 Dec 2006 17:27:22 +1000
Subject: [PATCH] [PATCH] m68knommu: add SHM support
It turns out SHMAT, SHMDT, SHMGET and SHMCTL support in sys_ipc() for
m68knommu in 2.6 kernel(uClinux-dist-20060803 release) is missing.
(copied from m68k sources, report by David Wu <davidwu@arcturusnetworks.com>)
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---
arch/m68knommu/kernel/sys_m68k.c | 23 ++++++++++++++++++++++-
1 file changed, 22 insertions(+), 1 deletion(-)
diff --git a/arch/m68knommu/kernel/sys_m68k.c b/arch/m68knommu/kernel/sys_m68k.c
index c3494b8447d1..3265b2d734db 100644
--- a/arch/m68knommu/kernel/sys_m68k.c
+++ b/arch/m68knommu/kernel/sys_m68k.c
@@ -137,7 +137,7 @@ asmlinkage int old_select(struct sel_arg_struct *arg)
asmlinkage int sys_ipc (uint call, int first, int second,
int third, void *ptr, long fifth)
{
- int version;
+ int version, ret;
version = call >> 16; /* hack for backward compatibility */
call &= 0xffff;
@@ -190,6 +190,27 @@ asmlinkage int sys_ipc (uint call, int first, int second,
default:
return -EINVAL;
}
+ if (call <= SHMCTL)
+ switch (call) {
+ case SHMAT:
+ switch (version) {
+ default: {
+ ulong raddr;
+ ret = do_shmat (first, ptr, second, &raddr);
+ if (ret)
+ return ret;
+ return put_user (raddr, (ulong __user *) third);
+ }
+ }
+ case SHMDT:
+ return sys_shmdt (ptr);
+ case SHMGET:
+ return sys_shmget (first, second, third);
+ case SHMCTL:
+ return sys_shmctl (first, second, ptr);
+ default:
+ return -ENOSYS;
+ }
return -EINVAL;
}
--
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