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kernel: use MF_KCALL_RESUME instead of RTS_VMREQUEST for memcopy retry.

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solves tracker item 499, submitted by Roman Ignatov.
This commit is contained in:
Ben Gras
2010-07-04 23:09:24 +00:00
parent 9fd2d72ce8
commit 545054c608
2 changed files with 7 additions and 3 deletions
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kernel/arch/i386/memory.c
+3 -2
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@@ -570,6 +570,8 @@ PRIVATE void vm_suspend(struct proc *caller, const struct proc *target,
*/
assert(!RTS_ISSET(caller, RTS_VMREQUEST));
assert(!RTS_ISSET(target, RTS_VMREQUEST));
assert(!(caller->p_misc_flags & MF_KCALL_RESUME));
assert(!(target->p_misc_flags & MF_KCALL_RESUME));
RTS_SET(caller, RTS_VMREQUEST);
@@ -819,9 +821,8 @@ int vmcheck; /* if nonzero, can return VMSUSPEND */
if(vm_running) {
int r;
if(caller && RTS_ISSET(caller, RTS_VMREQUEST)) {
if(caller && (caller->p_misc_flags & MF_KCALL_RESUME)) {
assert(caller->p_vmrequest.vmresult != VMSUSPEND);
RTS_UNSET(caller, RTS_VMREQUEST);
if(caller->p_vmrequest.vmresult != OK) {
return caller->p_vmrequest.vmresult;
}