This is a note to let you know that I've just added the patch titled
Drivers: hv: vmbus: Cleanup vmbus_establish_gpadl()
to my char-misc git tree which can be found at
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc.git
in the char-misc-next branch.
The patch will show up in the next release of the linux-next tree
(usually sometime within the next 24 hours during the week.)
The patch will also be merged in the next major kernel release
during the merge window.
If you have any questions about this process, please let me know.
>From 72c6b71c245dac8f371167d97ef471b367d0b66b Mon Sep 17 00:00:00 2001
From: "K. Y. Srinivasan" <kys@xxxxxxxxxxxxx>
Date: Wed, 27 Aug 2014 16:25:34 -0700
Subject: Drivers: hv: vmbus: Cleanup vmbus_establish_gpadl()
Eliminate the call to BUG_ON() by waiting for the host to respond. We are
trying to reclaim the ownership of memory that was given to the host and so
we will have to wait until the host responds.
Signed-off-by: K. Y. Srinivasan <kys@xxxxxxxxxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx>
Tested-by: Sitsofe Wheeler <sitsofe@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/hv/channel.c | 5 +----
1 file changed, 1 insertion(+), 4 deletions(-)
diff --git a/drivers/hv/channel.c b/drivers/hv/channel.c
index 020631453394..3788a181f176 100644
--- a/drivers/hv/channel.c
+++ b/drivers/hv/channel.c
@@ -363,7 +363,6 @@ int vmbus_establish_gpadl(struct vmbus_channel *channel, void *kbuffer,
u32 next_gpadl_handle;
unsigned long flags;
int ret = 0;
- int t;
next_gpadl_handle = atomic_read(&vmbus_connection.next_gpadl_handle);
atomic_inc(&vmbus_connection.next_gpadl_handle);
@@ -410,9 +409,7 @@ int vmbus_establish_gpadl(struct vmbus_channel *channel, void *kbuffer,
}
}
- t = wait_for_completion_timeout(&msginfo->waitevent, 5*HZ);
- BUG_ON(t == 0);
-
+ wait_for_completion(&msginfo->waitevent);
/* At this point, we received the gpadl created msg */
*gpadl_handle = gpadlmsg->gpadl;
--
2.1.0
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