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kernel: cannot interrupt segmentio commands

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once we submit a command to segmentio process, we have to wait
for it to complete even if we got interrupted.
This commit is contained in:
cinap_lenrek 2015-04-16 16:07:36 +02:00
parent 39cf6b34e3
commit ef647a54c0
1 changed files with 3 additions and 0 deletions
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3
sys/src/9/port/segment.c
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@ -799,8 +799,11 @@ docmd(Segio *sio, int cmd)
{ {
sio->err = nil; sio->err = nil;
sio->cmd = cmd; sio->cmd = cmd;
while(waserror())
;
wakeup(&sio->cmdwait); wakeup(&sio->cmdwait);
sleep(&sio->replywait, cmddone, sio); sleep(&sio->replywait, cmddone, sio);
poperror();
if(sio->err != nil) if(sio->err != nil)
error(sio->err); error(sio->err);
} }