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49 lines
1.7 KiB
Diff
49 lines
1.7 KiB
Diff
From 14013d6864b58095d23277008eac319a7ccf6aa6 Mon Sep 17 00:00:00 2001
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From: Alex Ng <alexng@messages.microsoft.com>
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Date: Sun, 6 Nov 2016 13:14:11 -0800
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Subject: [PATCH 07/14] Drivers: hv: vss: Operation timeouts should match host
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expectation
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Increase the timeout of backup operations. When system is under I/O load,
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it needs more time to freeze. These timeout values should also match the
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host timeout values more closely.
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Signed-off-by: Alex Ng <alexng@microsoft.com>
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Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
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Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Origin: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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(cherry picked from commit b357fd3908c1191f2f56e38aa77f2aecdae18bc8)
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---
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drivers/hv/hv_snapshot.c | 8 ++++++--
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1 file changed, 6 insertions(+), 2 deletions(-)
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diff --git a/drivers/hv/hv_snapshot.c b/drivers/hv/hv_snapshot.c
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index 5c95ba1e2ecf..eee238cc60bd 100644
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--- a/drivers/hv/hv_snapshot.c
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+++ b/drivers/hv/hv_snapshot.c
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@@ -31,7 +31,10 @@
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#define VSS_MINOR 0
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#define VSS_VERSION (VSS_MAJOR << 16 | VSS_MINOR)
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-#define VSS_USERSPACE_TIMEOUT (msecs_to_jiffies(10 * 1000))
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+/*
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+ * Timeout values are based on expecations from host
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+ */
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+#define VSS_FREEZE_TIMEOUT (15 * 60)
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/*
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* Global state maintained for transaction that is being processed. For a class
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@@ -186,7 +189,8 @@ static void vss_send_op(void)
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vss_transaction.state = HVUTIL_USERSPACE_REQ;
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- schedule_delayed_work(&vss_timeout_work, VSS_USERSPACE_TIMEOUT);
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+ schedule_delayed_work(&vss_timeout_work, op == VSS_OP_FREEZE ?
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+ VSS_FREEZE_TIMEOUT * HZ : HV_UTIL_TIMEOUT * HZ);
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rc = hvutil_transport_send(hvt, vss_msg, sizeof(*vss_msg), NULL);
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if (rc) {
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--
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2.21.0
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