lkml.org 
[lkml]   [2016]   [Nov]   [6]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH V3 07/14] Drivers: hv: vss: Operation timeouts should match host expectation
Date
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
\
 
 \ /
  Last update: 2016-11-06 20:22    [W:0.099 / U:0.104 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site