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Fix test for waiting AIFs in aac_poll(). This seems to solve the

Browse source 
problem where Adaptec's arcconf monitoring tool hangs after producing
its expected output.

Submitted by:	Adaptec, via driver ver 15317
MFC after:	1 week
This commit is contained in:
Ed Maste 2008-06-24 03:26:41 +00:00
parent 6a9748abc8
commit ef0b687ced
1 changed files with 7 additions and 2 deletions
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9
sys/dev/aac/aac.c
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@ -2998,6 +2998,7 @@ static int
aac_poll(struct cdev *dev, int poll_events, d_thread_t *td)
{
struct aac_softc *sc;
struct aac_fib_context *ctx;
int revents;
sc = dev->si_drv1;
@ -3005,8 +3006,12 @@ aac_poll(struct cdev *dev, int poll_events, d_thread_t *td)
mtx_lock(&sc->aac_aifq_lock);
if ((poll_events & (POLLRDNORM | POLLIN)) != 0) {
if (sc->aifq_idx != 0 || sc->aifq_filled)
revents |= poll_events & (POLLIN | POLLRDNORM);
for (ctx = sc->fibctx; ctx; ctx = ctx->next) {
if (ctx->ctx_idx != sc->aifq_idx || ctx->ctx_wrap) {
revents |= poll_events & (POLLIN | POLLRDNORM);
break;
}
}
}
mtx_unlock(&sc->aac_aifq_lock);