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Groups > linux.kernel > #1513426

[PATCH V2 07/14] Drivers: hv: vss: Operation timeouts should match host expectation

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From: Alex Ng <alexng@messages.microsoft.com>

Increase the timeout of backup operations. When system is under I/O load,
it needs more time to freeze. These timeout values should also match the
host timeout values more closely.

Signed-off-by: Alex Ng <alexng@microsoft.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
---
 drivers/hv/hv_snapshot.c |    8 ++++++--
 1 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/hv/hv_snapshot.c b/drivers/hv/hv_snapshot.c
index 5c95ba1..eee238c 100644
--- a/drivers/hv/hv_snapshot.c
+++ b/drivers/hv/hv_snapshot.c
@@ -31,7 +31,10 @@
 #define VSS_MINOR  0
 #define VSS_VERSION    (VSS_MAJOR << 16 | VSS_MINOR)
 
-#define VSS_USERSPACE_TIMEOUT (msecs_to_jiffies(10 * 1000))
+/*
+ * Timeout values are based on expecations from host
+ */
+#define VSS_FREEZE_TIMEOUT (15 * 60)
 
 /*
  * Global state maintained for transaction that is being processed. For a class
@@ -186,7 +189,8 @@ static void vss_send_op(void)
 
 	vss_transaction.state = HVUTIL_USERSPACE_REQ;
 
-	schedule_delayed_work(&vss_timeout_work, VSS_USERSPACE_TIMEOUT);
+	schedule_delayed_work(&vss_timeout_work, op == VSS_OP_FREEZE ?
+			VSS_FREEZE_TIMEOUT * HZ : HV_UTIL_TIMEOUT * HZ);
 
 	rc = hvutil_transport_send(hvt, vss_msg, sizeof(*vss_msg), NULL);
 	if (rc) {
-- 
1.7.4.1

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[PATCH V2 00/14] Drivers: hv: Some miscellaneous fixes and enhancements  kys@exchange.microsoft.com - 2016-11-01 19:20 +0100
  [PATCH V2 08/14] Drivers: hv: balloon: Fix info request to show max page count kys@exchange.microsoft.com - 2016-11-01 19:20 +0100
    Re: [PATCH V2 08/14] Drivers: hv: balloon: Fix info request to show  max page count Dan Carpenter <dan.carpenter@oracle.com> - 2016-11-10 20:20 +0100
      RE: [PATCH V2 08/14] Drivers: hv: balloon: Fix info request to show  max page count "Alex Ng (LIS)" <alexng@microsoft.com> - 2016-11-11 00:20 +0100
  [PATCH V2 04/14] Drivers: hv: balloon: Disable hot add when CONFIG_MEMORY_HOTPLUG is not set kys@exchange.microsoft.com - 2016-11-01 19:20 +0100
  [PATCH V2 02/14] Drivers: hv: utils: reduce HV_UTIL_NEGO_TIMEOUT timeout kys@exchange.microsoft.com - 2016-11-01 19:20 +0100
  [PATCH V2 12/14] Drivers: hv: vmbus: Base host signaling strictly on the ring state kys@exchange.microsoft.com - 2016-11-01 19:20 +0100
  [PATCH V2 03/14] Drivers: hv: utils: Fix the mapping between host version and protocol to use kys@exchange.microsoft.com - 2016-11-01 19:20 +0100
  [PATCH V2 11/14] tools: hv: remove unnecessary header files and netlink related code kys@exchange.microsoft.com - 2016-11-01 19:20 +0100
  [PATCH V2 14/14] Drivers: hv: vmbus: On the read path cleanup the logic to interrupt the host kys@exchange.microsoft.com - 2016-11-01 19:20 +0100
  [PATCH V2 07/14] Drivers: hv: vss: Operation timeouts should match host expectation kys@exchange.microsoft.com - 2016-11-01 19:20 +0100
  [PATCH V2 01/14] Drivers: hv: ring_buffer: count on wrap around mappings in get_next_pkt_raw() (v2) kys@exchange.microsoft.com - 2016-11-01 19:20 +0100
    [PATCH V2 10/14] tools: hv: fix a compile warning in snprintf kys@exchange.microsoft.com - 2016-11-01 19:20 +0100
    [PATCH V2 06/14] Drivers: hv: vss: Improve log messages. kys@exchange.microsoft.com - 2016-11-01 19:20 +0100
    [PATCH V2 09/14] tools: hv: remove unnecessary link flag kys@exchange.microsoft.com - 2016-11-01 19:20 +0100
    [PATCH V2 13/14] Drivers: hv: vmbus: On write cleanup the logic to interrupt the host kys@exchange.microsoft.com - 2016-11-01 19:20 +0100
    [PATCH V2 05/14] Drivers: hv: balloon: Add logging for dynamic memory operations kys@exchange.microsoft.com - 2016-11-01 19:20 +0100

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