1 files changed, 13 insertions, 4 deletions

diff --git a/drivers/block/aoe/aoechr.c b/drivers/block/aoe/aoechr.c
index d5480e34cb22..03c7f4ab5624 100644
--- a/drivers/block/aoe/aoechr.c
+++ b/drivers/block/aoe/aoechr.c
@@ -6,6 +6,7 @@
 
 #include <linux/hdreg.h>
 #include <linux/blkdev.h>
+#include <linux/delay.h>
 #include "aoe.h"
 
 enum {
@@ -68,6 +69,7 @@ revalidate(const char __user *str, size_t size)
         int major, minor, n;
         ulong flags;
         struct aoedev *d;
+        struct sk_buff *skb;
         char buf[16];
 
         if (size >= sizeof buf)
@@ -85,13 +87,20 @@ revalidate(const char __user *str, size_t size)
         d = aoedev_by_aoeaddr(major, minor);
         if (!d)
                 return -EINVAL;
-
         spin_lock_irqsave(&d->lock, flags);
-        d->flags &= ~DEVFL_MAXBCNT;
-        d->flags |= DEVFL_PAUSE;
+        aoecmd_cleanslate(d);
+loop:
+        skb = aoecmd_ata_id(d);
         spin_unlock_irqrestore(&d->lock, flags);
+        /* try again if we are able to sleep a bit,
+         * otherwise give up this revalidation
+         */
+        if (!skb && !msleep_interruptible(200)) {
+                spin_lock_irqsave(&d->lock, flags);
+                goto loop;
+        }
+        aoenet_xmit(skb);
         aoecmd_cfg(major, minor);
-
         return 0;
 }