From a31e67878a1bf006016a43cafa1fdffa37e432e6 Mon Sep 17 00:00:00 2001
From: George Wilson <George.Wilson@Sun.COM>
Date: Thu, 30 Oct 2008 18:04:43 -0700
Subject: 6764914 vdev_reopen() can lead to failed allocations

---
 usr/src/uts/common/fs/zfs/vdev.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

(limited to 'usr/src/uts/common/fs/zfs/vdev.c')

diff --git a/usr/src/uts/common/fs/zfs/vdev.c b/usr/src/uts/common/fs/zfs/vdev.c
index 240f955ea2..38b238e3ed 100644
--- a/usr/src/uts/common/fs/zfs/vdev.c
+++ b/usr/src/uts/common/fs/zfs/vdev.c
@@ -1870,6 +1870,19 @@ vdev_writeable(vdev_t *vd)
 	return (!vdev_is_dead(vd) && !vd->vdev_cant_write);
 }
 
+boolean_t
+vdev_allocatable(vdev_t *vd)
+{
+	/*
+	 * We currently allow allocations from vdevs which maybe in the
+	 * process of reopening (i.e. VDEV_STATE_CLOSED). If the device
+	 * fails to reopen then we'll catch it later when we're holding
+	 * the proper locks.
+	 */
+	return (!(vdev_is_dead(vd) && vd->vdev_state != VDEV_STATE_CLOSED) &&
+	    !vd->vdev_cant_write);
+}
+
 boolean_t
 vdev_accessible(vdev_t *vd, zio_t *zio)
 {
-- 
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