From b4b7ff4b08e691656c9d77c758fc355833128ac0 Mon Sep 17 00:00:00 2001 From: André Fabian Silva Delgado Date: Wed, 20 Jan 2016 14:01:31 -0300 Subject: Linux-libre 4.4-gnu --- drivers/misc/mic/scif/scif_epd.c | 26 +++++++++++++++----------- 1 file changed, 15 insertions(+), 11 deletions(-) (limited to 'drivers/misc/mic/scif/scif_epd.c') diff --git a/drivers/misc/mic/scif/scif_epd.c b/drivers/misc/mic/scif/scif_epd.c index b4bfbb08a..00e5d6d66 100644 --- a/drivers/misc/mic/scif/scif_epd.c +++ b/drivers/misc/mic/scif/scif_epd.c @@ -65,14 +65,14 @@ void scif_teardown_ep(void *endpt) void scif_add_epd_to_zombie_list(struct scif_endpt *ep, bool eplock_held) { if (!eplock_held) - spin_lock(&scif_info.eplock); + mutex_lock(&scif_info.eplock); spin_lock(&ep->lock); ep->state = SCIFEP_ZOMBIE; spin_unlock(&ep->lock); list_add_tail(&ep->list, &scif_info.zombie); scif_info.nr_zombies++; if (!eplock_held) - spin_unlock(&scif_info.eplock); + mutex_unlock(&scif_info.eplock); schedule_work(&scif_info.misc_work); } @@ -81,16 +81,15 @@ static struct scif_endpt *scif_find_listen_ep(u16 port) struct scif_endpt *ep = NULL; struct list_head *pos, *tmpq; - spin_lock(&scif_info.eplock); + mutex_lock(&scif_info.eplock); list_for_each_safe(pos, tmpq, &scif_info.listen) { ep = list_entry(pos, struct scif_endpt, list); if (ep->port.port == port) { - spin_lock(&ep->lock); - spin_unlock(&scif_info.eplock); + mutex_unlock(&scif_info.eplock); return ep; } } - spin_unlock(&scif_info.eplock); + mutex_unlock(&scif_info.eplock); return NULL; } @@ -99,14 +98,17 @@ void scif_cleanup_zombie_epd(void) struct list_head *pos, *tmpq; struct scif_endpt *ep; - spin_lock(&scif_info.eplock); + mutex_lock(&scif_info.eplock); list_for_each_safe(pos, tmpq, &scif_info.zombie) { ep = list_entry(pos, struct scif_endpt, list); - list_del(pos); - scif_info.nr_zombies--; - kfree(ep); + if (scif_rma_ep_can_uninit(ep)) { + list_del(pos); + scif_info.nr_zombies--; + put_iova_domain(&ep->rma_info.iovad); + kfree(ep); + } } - spin_unlock(&scif_info.eplock); + mutex_unlock(&scif_info.eplock); } /** @@ -137,6 +139,8 @@ void scif_cnctreq(struct scif_dev *scifdev, struct scifmsg *msg) if (!ep) /* Send reject due to no listening ports */ goto conreq_sendrej_free; + else + spin_lock(&ep->lock); if (ep->backlog <= ep->conreqcnt) { /* Send reject due to too many pending requests */ -- cgit v1.2.3-54-g00ecf