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If crypto operation is finished with EAGAIN, don't repeat operation from

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the return context, but from the original context.
Before repeating operation clear DONE flag and error.

Reviewed by:	sam
Obtained from:	Wheel Sp. z o.o. (http://www.wheel.pl)
This commit is contained in:
Pawel Jakub Dawidek 2009-09-04 09:48:18 +00:00
parent 6cf918bc9b
commit f49861e199
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=196825
1 changed files with 9 additions and 8 deletions
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17
sys/opencrypto/cryptodev.c
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@ -496,6 +496,7 @@ cryptodev_op(
goto bail;
}
again:
/*
* Let the dispatch run unlocked, then, interlock against the
* callback before checking if the operation completed and going
@ -512,6 +513,12 @@ cryptodev_op(
if (error != 0)
goto bail;
if (crp->crp_etype == EAGAIN) {
crp->crp_etype = 0;
crp->crp_flags &= ~CRYPTO_F_DONE;
goto again;
}
if (crp->crp_etype != 0) {
error = crp->crp_etype;
goto bail;
@ -545,16 +552,10 @@ cryptodev_cb(void *op)
{
struct cryptop *crp = (struct cryptop *) op;
struct csession *cse = (struct csession *)crp->crp_opaque;
int error;
error = crp->crp_etype;
if (error == EAGAIN)
error = crypto_dispatch(crp);
mtx_lock(&cse->lock);
if (error != 0 || (crp->crp_flags & CRYPTO_F_DONE)) {
cse->error = error;
wakeup_one(crp);
}
cse->error = crp->crp_etype;
wakeup_one(crp);
mtx_unlock(&cse->lock);
return (0);
}