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upas/fs: lock mbox in syncallmboxes() to avoid assert crash

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This commit is contained in:
cinap_lenrek 2017-03-12 21:29:28 +01:00
parent b24ebff76a
commit ffa430c570
1 changed files with 4 additions and 1 deletions
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5
sys/src/cmd/upas/fs/mbox.c
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@ -273,9 +273,12 @@ syncallmboxes(void)
Mailbox *m; Mailbox *m;
qlock(&mbllock); qlock(&mbllock);
for(m = mbl; m != nil; m = m->next) for(m = mbl; m != nil; m = m->next){
qlock(m);
if(err = syncmbox(m, 1)) if(err = syncmbox(m, 1))
eprint("syncmbox: %s\n", err); eprint("syncmbox: %s\n", err);
qunlock(m);
}
qunlock(&mbllock); qunlock(&mbllock);
} }