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[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>
This commit is contained in:
David Wu 2006-12-04 17:27:22 +10:00 committed by Linus Torvalds
parent 329237c12b
commit 1bddcc50c2
1 changed files with 22 additions and 1 deletions
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23
arch/m68knommu/kernel/sys_m68k.c
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@ -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;
}