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Message-Id: <20241028-open-coded-timeouts-v2-2-c7294bb845a1@linux.microsoft.com>
Date: Mon, 28 Oct 2024 19:11:03 +0000
From: Easwar Hariharan <eahariha@...ux.microsoft.com>
To: "K. Y. Srinivasan" <kys@...rosoft.com>,
Haiyang Zhang <haiyangz@...rosoft.com>, Wei Liu <wei.liu@...nel.org>,
Dexuan Cui <decui@...rosoft.com>, linux-hyperv@...r.kernel.org,
Anna-Maria Behnsen <anna-maria@...utronix.de>,
Thomas Gleixner <tglx@...utronix.de>,
Geert Uytterhoeven <geert@...ux-m68k.org>,
Marcel Holtmann <marcel@...tmann.org>,
Johan Hedberg <johan.hedberg@...il.com>,
Luiz Augusto von Dentz <luiz.dentz@...il.com>,
linux-bluetooth@...r.kernel.org, linux-kernel@...r.kernel.org
Cc: Michael Kelley <mhklinux@...look.com>,
Easwar Hariharan <eahariha@...ux.microsoft.com>
Subject: [PATCH v2 2/2] drivers: hv: Convert open-coded timeouts to
secs_to_jiffies()
We have several places where timeouts are open-coded as N (seconds) * HZ,
but best practice is to use the utility functions from jiffies.h. Convert
the timeouts to be compliant. This doesn't fix any bugs, it's a simple code
improvement.
TO: "K. Y. Srinivasan" <kys@...rosoft.com>
TO: Haiyang Zhang <haiyangz@...rosoft.com>
TO: Wei Liu <wei.liu@...nel.org>
TO: Dexuan Cui <decui@...rosoft.com>
TO: linux-hyperv@...r.kernel.org
TO: Anna-Maria Behnsen <anna-maria@...utronix.de>
TO: Thomas Gleixner <tglx@...utronix.de>
TO: Geert Uytterhoeven <geert@...ux-m68k.org>
TO: Marcel Holtmann <marcel@...tmann.org>
TO: Johan Hedberg <johan.hedberg@...il.com>
TO: Luiz Augusto von Dentz <luiz.dentz@...il.com>
TO: linux-bluetooth@...r.kernel.org
TO: linux-kernel@...r.kernel.org
CC: Michael Kelley <mhklinux@...look.com>
Signed-off-by: Easwar Hariharan <eahariha@...ux.microsoft.com>
---
drivers/hv/hv_balloon.c | 9 +++++----
drivers/hv/hv_kvp.c | 4 ++--
drivers/hv/hv_snapshot.c | 3 ++-
drivers/hv/vmbus_drv.c | 2 +-
4 files changed, 10 insertions(+), 8 deletions(-)
diff --git a/drivers/hv/hv_balloon.c b/drivers/hv/hv_balloon.c
index c38dcdfcb914..a99112e6f0b8 100644
--- a/drivers/hv/hv_balloon.c
+++ b/drivers/hv/hv_balloon.c
@@ -756,7 +756,7 @@ static void hv_mem_hot_add(unsigned long start, unsigned long size,
* adding succeeded, it is ok to proceed even if the memory was
* not onlined in time.
*/
- wait_for_completion_timeout(&dm_device.ol_waitevent, 5 * HZ);
+ wait_for_completion_timeout(&dm_device.ol_waitevent, secs_to_jiffies(5));
post_status(&dm_device);
}
}
@@ -1373,7 +1373,8 @@ static int dm_thread_func(void *dm_dev)
struct hv_dynmem_device *dm = dm_dev;
while (!kthread_should_stop()) {
- wait_for_completion_interruptible_timeout(&dm_device.config_event, 1 * HZ);
+ wait_for_completion_interruptible_timeout(&dm_device.config_event,
+ secs_to_jiffies(1));
/*
* The host expects us to post information on the memory
* pressure every second.
@@ -1748,7 +1749,7 @@ static int balloon_connect_vsp(struct hv_device *dev)
if (ret)
goto out;
- t = wait_for_completion_timeout(&dm_device.host_event, 5 * HZ);
+ t = wait_for_completion_timeout(&dm_device.host_event, secs_to_jiffies(5));
if (t == 0) {
ret = -ETIMEDOUT;
goto out;
@@ -1806,7 +1807,7 @@ static int balloon_connect_vsp(struct hv_device *dev)
if (ret)
goto out;
- t = wait_for_completion_timeout(&dm_device.host_event, 5 * HZ);
+ t = wait_for_completion_timeout(&dm_device.host_event, secs_to_jiffies(5));
if (t == 0) {
ret = -ETIMEDOUT;
goto out;
diff --git a/drivers/hv/hv_kvp.c b/drivers/hv/hv_kvp.c
index d35b60c06114..29e01247a087 100644
--- a/drivers/hv/hv_kvp.c
+++ b/drivers/hv/hv_kvp.c
@@ -655,7 +655,7 @@ void hv_kvp_onchannelcallback(void *context)
if (host_negotiatied == NEGO_NOT_STARTED) {
host_negotiatied = NEGO_IN_PROGRESS;
schedule_delayed_work(&kvp_host_handshake_work,
- HV_UTIL_NEGO_TIMEOUT * HZ);
+ secs_to_jiffies(HV_UTIL_NEGO_TIMEOUT));
}
return;
}
@@ -724,7 +724,7 @@ void hv_kvp_onchannelcallback(void *context)
*/
schedule_work(&kvp_sendkey_work);
schedule_delayed_work(&kvp_timeout_work,
- HV_UTIL_TIMEOUT * HZ);
+ secs_to_jiffies(HV_UTIL_TIMEOUT));
return;
diff --git a/drivers/hv/hv_snapshot.c b/drivers/hv/hv_snapshot.c
index 0d2184be1691..86d87486ed40 100644
--- a/drivers/hv/hv_snapshot.c
+++ b/drivers/hv/hv_snapshot.c
@@ -193,7 +193,8 @@ static void vss_send_op(void)
vss_transaction.state = HVUTIL_USERSPACE_REQ;
schedule_delayed_work(&vss_timeout_work, op == VSS_OP_FREEZE ?
- VSS_FREEZE_TIMEOUT * HZ : HV_UTIL_TIMEOUT * HZ);
+ secs_to_jiffies(VSS_FREEZE_TIMEOUT) :
+ secs_to_jiffies(HV_UTIL_TIMEOUT));
rc = hvutil_transport_send(hvt, vss_msg, sizeof(*vss_msg), NULL);
if (rc) {
diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c
index 9b15f7daf505..7db30881e83a 100644
--- a/drivers/hv/vmbus_drv.c
+++ b/drivers/hv/vmbus_drv.c
@@ -2507,7 +2507,7 @@ static int vmbus_bus_resume(struct device *dev)
vmbus_request_offers();
if (wait_for_completion_timeout(
- &vmbus_connection.ready_for_resume_event, 10 * HZ) == 0)
+ &vmbus_connection.ready_for_resume_event, secs_to_jiffies(10)) == 0)
pr_err("Some vmbus device is missing after suspending?\n");
/* Reset the event for the next suspend. */
--
2.34.1
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