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authorLinus Torvalds <torvalds@linux-foundation.org>2011-01-14 13:25:30 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2011-01-14 13:25:30 -0800
commitd018b6f4f1539f3679fbdc2d02d58d09e76be84a (patch)
tree317b9e04d8e7a73a4d07c69a5cb5455ec34f47e5 /drivers/vhost
parent18bce371ae09af6c20ee62c1092a4d1d0e84dd49 (diff)
parent0f73f2c5a3ebb957ee66718c903c17ed71a4fc2e (diff)
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Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (47 commits) GRETH: resolve SMP issues and other problems GRETH: handle frame error interrupts GRETH: avoid writing bad speed/duplex when setting transfer mode GRETH: fixed skb buffer memory leak on frame errors GRETH: GBit transmit descriptor handling optimization GRETH: fix opening/closing GRETH: added raw AMBA vendor/device number to match against. cassini: Fix build bustage on x86. e1000e: consistent use of Rx/Tx vs. RX/TX/rx/tx in comments/logs e1000e: update Copyright for 2011 e1000: Avoid unhandled IRQ r8169: keep firmware in memory. netdev: tilepro: Use is_unicast_ether_addr helper etherdevice.h: Add is_unicast_ether_addr function ks8695net: Use default implementation of ethtool_ops::get_link ks8695net: Disable non-working ethtool operations USB CDC NCM: Don't deref NULL in cdc_ncm_rx_fixup() and don't use uninitialized variable. vxge: Remember to release firmware after upgrading firmware netdev: bfin_mac: Remove is_multicast_ether_addr use in netdev_for_each_mc_addr ipsec: update MAX_AH_AUTH_LEN to support sha512 ...
Diffstat (limited to 'drivers/vhost')
-rw-r--r--drivers/vhost/vhost.c18
1 files changed, 11 insertions, 7 deletions
diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c
index 38244f5..ade0568 100644
--- a/drivers/vhost/vhost.c
+++ b/drivers/vhost/vhost.c
@@ -97,22 +97,26 @@ void vhost_poll_stop(struct vhost_poll *poll)
remove_wait_queue(poll->wqh, &poll->wait);
}
+static bool vhost_work_seq_done(struct vhost_dev *dev, struct vhost_work *work,
+ unsigned seq)
+{
+ int left;
+ spin_lock_irq(&dev->work_lock);
+ left = seq - work->done_seq;
+ spin_unlock_irq(&dev->work_lock);
+ return left <= 0;
+}
+
static void vhost_work_flush(struct vhost_dev *dev, struct vhost_work *work)
{
unsigned seq;
- int left;
int flushing;
spin_lock_irq(&dev->work_lock);
seq = work->queue_seq;
work->flushing++;
spin_unlock_irq(&dev->work_lock);
- wait_event(work->done, ({
- spin_lock_irq(&dev->work_lock);
- left = seq - work->done_seq <= 0;
- spin_unlock_irq(&dev->work_lock);
- left;
- }));
+ wait_event(work->done, vhost_work_seq_done(dev, work, seq));
spin_lock_irq(&dev->work_lock);
flushing = --work->flushing;
spin_unlock_irq(&dev->work_lock);