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No need to use memcpy to copy a message of 36 bytes. The overhead just

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to call memcpy is half of the inline copy (using gcc -O)
This commit is contained in:
Tomas Hruby 2010-01-27 09:34:47 +00:00
parent 9a7cd8e254
commit e0f7043e04
1 changed files with 2 additions and 2 deletions
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4
kernel/system.c
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@ -115,7 +115,7 @@ PUBLIC void sys_task()
*/ */
vmassert(RTS_ISSET(caller_ptr, RTS_VMREQUEST)); vmassert(RTS_ISSET(caller_ptr, RTS_VMREQUEST));
vmassert(caller_ptr->p_vmrequest.type == VMSTYPE_KERNELCALL); vmassert(caller_ptr->p_vmrequest.type == VMSTYPE_KERNELCALL);
memcpy(&caller_ptr->p_vmrequest.saved.reqmsg, &m, sizeof(m)); caller_ptr->p_vmrequest.saved.reqmsg = m;
} else if (result != EDONTREPLY) { } else if (result != EDONTREPLY) {
/* Send a reply, unless inhibited by a handler function. /* Send a reply, unless inhibited by a handler function.
* Use the kernel function lock_send() to prevent a system * Use the kernel function lock_send() to prevent a system
@ -564,7 +564,7 @@ PRIVATE struct proc *vmrestart_check(message *m)
switch(type) { switch(type) {
case VMSTYPE_KERNELCALL: case VMSTYPE_KERNELCALL:
memcpy(m, &restarting->p_vmrequest.saved.reqmsg, sizeof(*m)); *m = restarting->p_vmrequest.saved.reqmsg;
restarting->p_vmrequest.saved.reqmsg.m_source = NONE; restarting->p_vmrequest.saved.reqmsg.m_source = NONE;
vmassert(m->m_source == restarting->p_endpoint); vmassert(m->m_source == restarting->p_endpoint);
/* Original caller could've disappeared in the meantime. */ /* Original caller could've disappeared in the meantime. */