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| author | K. Y. Srinivasan <kys@microsoft.com> | 2015-12-14 16:01:32 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-12-14 19:12:21 -0800 |
| commit | c0b200cfb0403740171c7527b3ac71d03f82947a (patch) | |
| tree | b7d700eecc1e2fc63aed14dcc1cfcf02ab45851e /drivers/hv | |
| parent | 9220e39b5c900c67ddcb517d52fe52d90fb5e3c8 (diff) | |
| download | linux-0-day-c0b200cfb0403740171c7527b3ac71d03f82947a.tar.gz linux-0-day-c0b200cfb0403740171c7527b3ac71d03f82947a.tar.xz | |
Drivers: hv: util: Increase the timeout for util services
Util services such as KVP and FCOPY need assistance from daemon's running
in user space. Increase the timeout so we don't prematurely terminate
the transaction in the kernel. Host sets up a 60 second timeout for
all util driver transactions. The host will retry the transaction if it
times out. Set the guest timeout at 30 seconds.
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/hv')
| -rw-r--r-- | drivers/hv/hv_fcopy.c | 3 | ||||
| -rw-r--r-- | drivers/hv/hv_kvp.c | 3 | ||||
| -rw-r--r-- | drivers/hv/hyperv_vmbus.h | 5 |
3 files changed, 9 insertions, 2 deletions
diff --git a/drivers/hv/hv_fcopy.c b/drivers/hv/hv_fcopy.c index db4b887b889d2..bbdec50c4a1c1 100644 --- a/drivers/hv/hv_fcopy.c +++ b/drivers/hv/hv_fcopy.c @@ -275,7 +275,8 @@ void hv_fcopy_onchannelcallback(void *context) * Send the information to the user-level daemon. */ schedule_work(&fcopy_send_work); - schedule_delayed_work(&fcopy_timeout_work, 5*HZ); + schedule_delayed_work(&fcopy_timeout_work, + HV_UTIL_TIMEOUT * HZ); return; } icmsghdr->icflags = ICMSGHDRFLAG_TRANSACTION | ICMSGHDRFLAG_RESPONSE; diff --git a/drivers/hv/hv_kvp.c b/drivers/hv/hv_kvp.c index 74c38a9f34a60..e6aa33a89b0ea 100644 --- a/drivers/hv/hv_kvp.c +++ b/drivers/hv/hv_kvp.c @@ -668,7 +668,8 @@ void hv_kvp_onchannelcallback(void *context) * user-mode not responding. */ schedule_work(&kvp_sendkey_work); - schedule_delayed_work(&kvp_timeout_work, 5*HZ); + schedule_delayed_work(&kvp_timeout_work, + HV_UTIL_TIMEOUT * HZ); return; diff --git a/drivers/hv/hyperv_vmbus.h b/drivers/hv/hyperv_vmbus.h index 3782636562a1b..225b96bcf7fe1 100644 --- a/drivers/hv/hyperv_vmbus.h +++ b/drivers/hv/hyperv_vmbus.h @@ -31,6 +31,11 @@ #include <linux/hyperv.h> /* + * Timeout for services such as KVP and fcopy. + */ +#define HV_UTIL_TIMEOUT 30 + +/* * The below CPUID leaves are present if VersionAndFeatures.HypervisorPresent * is set by CPUID(HVCPUID_VERSION_FEATURES). */ |