* [PATCH RFC] bonding: rate-limit bonding driver inspect messages
@ 2024-02-19 11:31 Praveen Kumar Kannoju
2024-02-19 13:36 ` Praveen Kannoju
0 siblings, 1 reply; 10+ messages in thread
From: Praveen Kumar Kannoju @ 2024-02-19 11:31 UTC (permalink / raw)
To: j.vosburgh, andy, davem, edumazet, kuba, pabeni, netdev, linux-kernel
Cc: rajesh.sivaramasubramaniom, rama.nichanamatlu, manjunath.b.patil,
Praveen Kumar Kannoju
Through the routine bond_mii_monitor(), bonding driver inspects and commits the
slave state changes. During the times when slave state change and failure in
aqcuiring rtnl lock happen at the same time, the routine bond_mii_monitor()
reschedules itself to come around after 1 msec to commit the new state.
During this, it executes the routine bond_miimon_inspect() to re-inspect the
state chane and prints the corresponding slave state on to the console. Hence
we do see a message at every 1 msec till the rtnl lock is acquired and state
chage is committed.
This patch doesn't change how bond functions. It only simply limits this kind
of log flood.
v2: Use exising net_ratelimit() instead of introducing new rate-limit
parameter.
v3: Commit message is modified to provide summary of the issue, because of
which rate-limiting the bonding driver messages is needed.
Signed-off-by: Praveen Kumar Kannoju <praveen.kannoju@oracle.com>
---
drivers/net/bonding/bond_main.c | 36 ++++++++++++++++++++----------------
1 file changed, 20 insertions(+), 16 deletions(-)
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 4e0600c..e92eba1 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -2610,12 +2610,13 @@ static int bond_miimon_inspect(struct bonding *bond)
commit++;
slave->delay = bond->params.downdelay;
if (slave->delay) {
- slave_info(bond->dev, slave->dev, "link status down for %sinterface, disabling it in %d ms\n",
- (BOND_MODE(bond) ==
- BOND_MODE_ACTIVEBACKUP) ?
- (bond_is_active_slave(slave) ?
- "active " : "backup ") : "",
- bond->params.downdelay * bond->params.miimon);
+ if (net_ratelimit())
+ slave_info(bond->dev, slave->dev, "link status down for %sinterface, disabling it in %d ms\n",
+ (BOND_MODE(bond) ==
+ BOND_MODE_ACTIVEBACKUP) ?
+ (bond_is_active_slave(slave) ?
+ "active " : "backup ") : "",
+ bond->params.downdelay * bond->params.miimon);
}
fallthrough;
case BOND_LINK_FAIL:
@@ -2623,9 +2624,10 @@ static int bond_miimon_inspect(struct bonding *bond)
/* recovered before downdelay expired */
bond_propose_link_state(slave, BOND_LINK_UP);
slave->last_link_up = jiffies;
- slave_info(bond->dev, slave->dev, "link status up again after %d ms\n",
- (bond->params.downdelay - slave->delay) *
- bond->params.miimon);
+ if (net_ratelimit())
+ slave_info(bond->dev, slave->dev, "link status up again after %d ms\n",
+ (bond->params.downdelay - slave->delay) *
+ bond->params.miimon);
commit++;
continue;
}
@@ -2648,18 +2650,20 @@ static int bond_miimon_inspect(struct bonding *bond)
slave->delay = bond->params.updelay;
if (slave->delay) {
- slave_info(bond->dev, slave->dev, "link status up, enabling it in %d ms\n",
- ignore_updelay ? 0 :
- bond->params.updelay *
- bond->params.miimon);
+ if (net_ratelimit())
+ slave_info(bond->dev, slave->dev, "link status up, enabling it in %d ms\n",
+ ignore_updelay ? 0 :
+ bond->params.updelay *
+ bond->params.miimon);
}
fallthrough;
case BOND_LINK_BACK:
if (!link_state) {
bond_propose_link_state(slave, BOND_LINK_DOWN);
- slave_info(bond->dev, slave->dev, "link status down again after %d ms\n",
- (bond->params.updelay - slave->delay) *
- bond->params.miimon);
+ if (net_ratelimit())
+ slave_info(bond->dev, slave->dev, "link status down again after %d ms\n",
+ (bond->params.updelay - slave->delay) *
+ bond->params.miimon);
commit++;
continue;
}
--
1.8.3.1
^ permalink raw reply related [flat|nested] 10+ messages in thread
* RE: [PATCH RFC] bonding: rate-limit bonding driver inspect messages
2024-02-19 11:31 [PATCH RFC] bonding: rate-limit bonding driver inspect messages Praveen Kumar Kannoju
@ 2024-02-19 13:36 ` Praveen Kannoju
0 siblings, 0 replies; 10+ messages in thread
From: Praveen Kannoju @ 2024-02-19 13:36 UTC (permalink / raw)
To: Praveen Kannoju, j.vosburgh, andy, davem, edumazet, kuba, pabeni,
netdev, linux-kernel
Cc: Rajesh Sivaramasubramaniom, Rama Nichanamatlu, Manjunath Patil
Hi,
I've forgot to remove RFC in the subject line. Will remove it and re-send another copy.
-
Praveen.
> -----Original Message-----
> From: Praveen Kumar Kannoju <praveen.kannoju@oracle.com>
> Sent: 19 February 2024 05:02 PM
> To: j.vosburgh@gmail.com; andy@greyhouse.net; davem@davemloft.net; edumazet@google.com; kuba@kernel.org;
> pabeni@redhat.com; netdev@vger.kernel.org; linux-kernel@vger.kernel.org
> Cc: Rajesh Sivaramasubramaniom <rajesh.sivaramasubramaniom@oracle.com>; Rama Nichanamatlu
> <rama.nichanamatlu@oracle.com>; Manjunath Patil <manjunath.b.patil@oracle.com>; Praveen Kannoju
> <praveen.kannoju@oracle.com>
> Subject: [PATCH RFC] bonding: rate-limit bonding driver inspect messages
>
> Through the routine bond_mii_monitor(), bonding driver inspects and commits the slave state changes. During the times when slave
> state change and failure in aqcuiring rtnl lock happen at the same time, the routine bond_mii_monitor() reschedules itself to come
> around after 1 msec to commit the new state.
>
> During this, it executes the routine bond_miimon_inspect() to re-inspect the state chane and prints the corresponding slave state on
> to the console. Hence we do see a message at every 1 msec till the rtnl lock is acquired and state chage is committed.
>
> This patch doesn't change how bond functions. It only simply limits this kind of log flood.
>
> v2: Use exising net_ratelimit() instead of introducing new rate-limit parameter.
>
> v3: Commit message is modified to provide summary of the issue, because of which rate-limiting the bonding driver messages is
> needed.
>
> Signed-off-by: Praveen Kumar Kannoju <praveen.kannoju@oracle.com>
> ---
> drivers/net/bonding/bond_main.c | 36 ++++++++++++++++++++----------------
> 1 file changed, 20 insertions(+), 16 deletions(-)
>
> diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index 4e0600c..e92eba1 100644
> --- a/drivers/net/bonding/bond_main.c
> +++ b/drivers/net/bonding/bond_main.c
> @@ -2610,12 +2610,13 @@ static int bond_miimon_inspect(struct bonding *bond)
> commit++;
> slave->delay = bond->params.downdelay;
> if (slave->delay) {
> - slave_info(bond->dev, slave->dev, "link status down for %sinterface, disabling it in %d ms\n",
> - (BOND_MODE(bond) ==
> - BOND_MODE_ACTIVEBACKUP) ?
> - (bond_is_active_slave(slave) ?
> - "active " : "backup ") : "",
> - bond->params.downdelay * bond->params.miimon);
> + if (net_ratelimit())
> + slave_info(bond->dev, slave->dev, "link status down for %sinterface, disabling it in %d ms\n",
> + (BOND_MODE(bond) ==
> + BOND_MODE_ACTIVEBACKUP) ?
> + (bond_is_active_slave(slave) ?
> + "active " : "backup ") : "",
> + bond->params.downdelay * bond->params.miimon);
> }
> fallthrough;
> case BOND_LINK_FAIL:
> @@ -2623,9 +2624,10 @@ static int bond_miimon_inspect(struct bonding *bond)
> /* recovered before downdelay expired */
> bond_propose_link_state(slave, BOND_LINK_UP);
> slave->last_link_up = jiffies;
> - slave_info(bond->dev, slave->dev, "link status up again after %d ms\n",
> - (bond->params.downdelay - slave->delay) *
> - bond->params.miimon);
> + if (net_ratelimit())
> + slave_info(bond->dev, slave->dev, "link status up again after %d ms\n",
> + (bond->params.downdelay - slave->delay) *
> + bond->params.miimon);
> commit++;
> continue;
> }
> @@ -2648,18 +2650,20 @@ static int bond_miimon_inspect(struct bonding *bond)
> slave->delay = bond->params.updelay;
>
> if (slave->delay) {
> - slave_info(bond->dev, slave->dev, "link status up, enabling it in %d ms\n",
> - ignore_updelay ? 0 :
> - bond->params.updelay *
> - bond->params.miimon);
> + if (net_ratelimit())
> + slave_info(bond->dev, slave->dev, "link status up, enabling it in %d ms\n",
> + ignore_updelay ? 0 :
> + bond->params.updelay *
> + bond->params.miimon);
> }
> fallthrough;
> case BOND_LINK_BACK:
> if (!link_state) {
> bond_propose_link_state(slave, BOND_LINK_DOWN);
> - slave_info(bond->dev, slave->dev, "link status down again after %d ms\n",
> - (bond->params.updelay - slave->delay) *
> - bond->params.miimon);
> + if (net_ratelimit())
> + slave_info(bond->dev, slave->dev, "link status down again after %d ms\n",
> + (bond->params.updelay - slave->delay) *
> + bond->params.miimon);
> commit++;
> continue;
> }
> --
> 1.8.3.1
^ permalink raw reply [flat|nested] 10+ messages in thread
* RE: [PATCH RFC] bonding: rate-limit bonding driver inspect messages
2024-02-18 3:09 ` Hangbin Liu
@ 2024-02-19 11:35 ` Praveen Kannoju
0 siblings, 0 replies; 10+ messages in thread
From: Praveen Kannoju @ 2024-02-19 11:35 UTC (permalink / raw)
To: Hangbin Liu
Cc: j.vosburgh, andy, davem, edumazet, kuba, pabeni, netdev,
linux-kernel, Rajesh Sivaramasubramaniom, Rama Nichanamatlu,
Manjunath Patil
> -----Original Message-----
> From: Hangbin Liu <liuhangbin@gmail.com>
> Sent: 18 February 2024 08:39 AM
> To: Praveen Kannoju <praveen.kannoju@oracle.com>
> Cc: j.vosburgh@gmail.com; andy@greyhouse.net; davem@davemloft.net; edumazet@google.com; kuba@kernel.org;
> pabeni@redhat.com; netdev@vger.kernel.org; linux-kernel@vger.kernel.org; Rajesh Sivaramasubramaniom
> <rajesh.sivaramasubramaniom@oracle.com>; Rama Nichanamatlu <rama.nichanamatlu@oracle.com>; Manjunath Patil
> <manjunath.b.patil@oracle.com>
> Subject: Re: [PATCH RFC] bonding: rate-limit bonding driver inspect messages
>
> On Sat, Feb 17, 2024 at 12:39:44PM +0000, Praveen Kannoju wrote:
> > > -----Original Message-----
> > > From: Hangbin Liu <liuhangbin@gmail.com>
> > > Sent: 16 February 2024 02:33 PM
> > > To: Praveen Kannoju <praveen.kannoju@oracle.com>
> > > Cc: j.vosburgh@gmail.com; andy@greyhouse.net; davem@davemloft.net;
> > > edumazet@google.com; kuba@kernel.org; pabeni@redhat.com;
> > > netdev@vger.kernel.org; linux-kernel@vger.kernel.org; Rajesh
> > > Sivaramasubramaniom <rajesh.sivaramasubramaniom@oracle.com>; Rama
> > > Nichanamatlu <rama.nichanamatlu@oracle.com>; Manjunath Patil
> > > <manjunath.b.patil@oracle.com>
> > > Subject: Re: [PATCH RFC] bonding: rate-limit bonding driver inspect
> > > messages
> > >
> > > On Thu, Feb 15, 2024 at 10:55:54PM +0530, Praveen Kumar Kannoju wrote:
> > > > Rate limit bond driver log messages, to prevent a log flood in a
> > > > run-away situation, e.g couldn't get rtnl lock. Message flood
> > > > leads to instability of system and loss of other crucial messages.
> > >
> > > Hi Praveen,
> > >
> > > The patch looks good to me. But would you please help explain why
> > > these
> > > slave_info() are chosen under net_ratelimit?
> > >
> > > Thanks
> > > Hangbin
> >
> > Thank you, Hangbin.
> >
> > The routine bond_mii_monitor() periodically inspects the slave carrier state in order to detect for state changes, on a state change
> internally records it and does the state change action.
> >
> > Parked-to-Parked state changes goes through transient state. As an example for Up to Down, BOND_LINK_UP to
> BOND_LINK_DOWN, is thru BOND_LINK_FAIL. In order to attain next parked state or transient state bond needs rtnl mutex. If in a
> situation it cannot get it, a state change wouldn't happen. In order to achieve a state change as quickly as possible
> bond_mii_monitor() reschedules itself to come around after 1 msec.
>
> I think a large miimon downdelay/updelay setting could reduce this.
>
> > And every single come around reinspects the link and sees a state change compared to its internally recorded, which in reality
> internal state could be not changed earlier as failed to get rtnl lock, and throws again log indicating it sees a state change. If attaining
> rtnl mutex take long say hypothetical 5 secs, then bond logs 5000 state change message. 1 message at every 1 msec.
>
> Anyway, setting the rate limit do reduce the message flood. Would you please summarise the paragraph and add it in commit
> description when post the formal patch?
>
> thanks
> Hangbin
Thank you very much, Hangbin.
I've added the summary on why we intend to rate-limit the messages in the commit, and re-sent the formal patch.
-
Praveen.
^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: [PATCH RFC] bonding: rate-limit bonding driver inspect messages
2024-02-17 12:39 ` Praveen Kannoju
@ 2024-02-18 3:09 ` Hangbin Liu
2024-02-19 11:35 ` Praveen Kannoju
0 siblings, 1 reply; 10+ messages in thread
From: Hangbin Liu @ 2024-02-18 3:09 UTC (permalink / raw)
To: Praveen Kannoju
Cc: j.vosburgh, andy, davem, edumazet, kuba, pabeni, netdev,
linux-kernel, Rajesh Sivaramasubramaniom, Rama Nichanamatlu,
Manjunath Patil
On Sat, Feb 17, 2024 at 12:39:44PM +0000, Praveen Kannoju wrote:
> > -----Original Message-----
> > From: Hangbin Liu <liuhangbin@gmail.com>
> > Sent: 16 February 2024 02:33 PM
> > To: Praveen Kannoju <praveen.kannoju@oracle.com>
> > Cc: j.vosburgh@gmail.com; andy@greyhouse.net; davem@davemloft.net; edumazet@google.com; kuba@kernel.org;
> > pabeni@redhat.com; netdev@vger.kernel.org; linux-kernel@vger.kernel.org; Rajesh Sivaramasubramaniom
> > <rajesh.sivaramasubramaniom@oracle.com>; Rama Nichanamatlu <rama.nichanamatlu@oracle.com>; Manjunath Patil
> > <manjunath.b.patil@oracle.com>
> > Subject: Re: [PATCH RFC] bonding: rate-limit bonding driver inspect messages
> >
> > On Thu, Feb 15, 2024 at 10:55:54PM +0530, Praveen Kumar Kannoju wrote:
> > > Rate limit bond driver log messages, to prevent a log flood in a
> > > run-away situation, e.g couldn't get rtnl lock. Message flood leads to
> > > instability of system and loss of other crucial messages.
> >
> > Hi Praveen,
> >
> > The patch looks good to me. But would you please help explain why these
> > slave_info() are chosen under net_ratelimit?
> >
> > Thanks
> > Hangbin
>
> Thank you, Hangbin.
>
> The routine bond_mii_monitor() periodically inspects the slave carrier state in order to detect for state changes, on a state change internally records it and does the state change action.
>
> Parked-to-Parked state changes goes through transient state. As an example for Up to Down, BOND_LINK_UP to BOND_LINK_DOWN, is thru BOND_LINK_FAIL. In order to attain next parked state or transient state bond needs rtnl mutex. If in a situation it cannot get it, a state change wouldn't happen. In order to achieve a state change as quickly as possible bond_mii_monitor() reschedules itself to come around after 1 msec.
I think a large miimon downdelay/updelay setting could reduce this.
> And every single come around reinspects the link and sees a state change compared to its internally recorded, which in reality internal state could be not changed earlier as failed to get rtnl lock, and throws again log indicating it sees a state change. If attaining rtnl mutex take long say hypothetical 5 secs, then bond logs 5000 state change message. 1 message at every 1 msec.
Anyway, setting the rate limit do reduce the message flood. Would you please
summarise the paragraph and add it in commit description when post the formal
patch?
thanks
Hangbin
^ permalink raw reply [flat|nested] 10+ messages in thread
* RE: [PATCH RFC] bonding: rate-limit bonding driver inspect messages
2024-02-16 9:03 ` Hangbin Liu
@ 2024-02-17 12:39 ` Praveen Kannoju
2024-02-18 3:09 ` Hangbin Liu
0 siblings, 1 reply; 10+ messages in thread
From: Praveen Kannoju @ 2024-02-17 12:39 UTC (permalink / raw)
To: Hangbin Liu
Cc: j.vosburgh, andy, davem, edumazet, kuba, pabeni, netdev,
linux-kernel, Rajesh Sivaramasubramaniom, Rama Nichanamatlu,
Manjunath Patil
> -----Original Message-----
> From: Hangbin Liu <liuhangbin@gmail.com>
> Sent: 16 February 2024 02:33 PM
> To: Praveen Kannoju <praveen.kannoju@oracle.com>
> Cc: j.vosburgh@gmail.com; andy@greyhouse.net; davem@davemloft.net; edumazet@google.com; kuba@kernel.org;
> pabeni@redhat.com; netdev@vger.kernel.org; linux-kernel@vger.kernel.org; Rajesh Sivaramasubramaniom
> <rajesh.sivaramasubramaniom@oracle.com>; Rama Nichanamatlu <rama.nichanamatlu@oracle.com>; Manjunath Patil
> <manjunath.b.patil@oracle.com>
> Subject: Re: [PATCH RFC] bonding: rate-limit bonding driver inspect messages
>
> On Thu, Feb 15, 2024 at 10:55:54PM +0530, Praveen Kumar Kannoju wrote:
> > Rate limit bond driver log messages, to prevent a log flood in a
> > run-away situation, e.g couldn't get rtnl lock. Message flood leads to
> > instability of system and loss of other crucial messages.
>
> Hi Praveen,
>
> The patch looks good to me. But would you please help explain why these
> slave_info() are chosen under net_ratelimit?
>
> Thanks
> Hangbin
Thank you, Hangbin.
The routine bond_mii_monitor() periodically inspects the slave carrier state in order to detect for state changes, on a state change internally records it and does the state change action.
Parked-to-Parked state changes goes through transient state. As an example for Up to Down, BOND_LINK_UP to BOND_LINK_DOWN, is thru BOND_LINK_FAIL. In order to attain next parked state or transient state bond needs rtnl mutex. If in a situation it cannot get it, a state change wouldn't happen. In order to achieve a state change as quickly as possible bond_mii_monitor() reschedules itself to come around after 1 msec. And every single come around reinspects the link and sees a state change compared to its internally recorded, which in reality internal state could be not changed earlier as failed to get rtnl lock, and throws again log indicating it sees a state change. If attaining rtnl mutex take long say hypothetical 5 secs, then bond logs 5000 state change message. 1 message at every 1 msec.
And in production environments we have seen bond taking long to achieve a state as someone else holding rtnl. Many processes do get rtnl lock. As an example we can see eth drivers. They hold rtnl mutex for the entire duration while performing a fault recovery. There are many such scenarios.
This patch doesn't change -how- bond functions. It only simply limits this kind of log flood.
-
Praveen.
> >
> > v2: Use exising net_ratelimit() instead of introducing new rate-limit
> > parameter.
> >
> > Signed-off-by: Praveen Kumar Kannoju <praveen.kannoju@oracle.com>
> > ---
> > drivers/net/bonding/bond_main.c | 36
> > ++++++++++++++++++++----------------
> > 1 file changed, 20 insertions(+), 16 deletions(-)
> >
> > diff --git a/drivers/net/bonding/bond_main.c
> > b/drivers/net/bonding/bond_main.c index 4e0600c..e92eba1 100644
> > --- a/drivers/net/bonding/bond_main.c
> > +++ b/drivers/net/bonding/bond_main.c
> > @@ -2610,12 +2610,13 @@ static int bond_miimon_inspect(struct bonding *bond)
> > commit++;
> > slave->delay = bond->params.downdelay;
> > if (slave->delay) {
> > - slave_info(bond->dev, slave->dev, "link status down for %sinterface, disabling it in %d ms\n",
> > - (BOND_MODE(bond) ==
> > - BOND_MODE_ACTIVEBACKUP) ?
> > - (bond_is_active_slave(slave) ?
> > - "active " : "backup ") : "",
> > - bond->params.downdelay * bond->params.miimon);
> > + if (net_ratelimit())
> > + slave_info(bond->dev, slave->dev, "link status down for %sinterface, disabling it in %d ms\n",
> > + (BOND_MODE(bond) ==
> > + BOND_MODE_ACTIVEBACKUP) ?
> > + (bond_is_active_slave(slave) ?
> > + "active " : "backup ") : "",
> > + bond->params.downdelay * bond->params.miimon);
> > }
> > fallthrough;
> > case BOND_LINK_FAIL:
> > @@ -2623,9 +2624,10 @@ static int bond_miimon_inspect(struct bonding *bond)
> > /* recovered before downdelay expired */
> > bond_propose_link_state(slave, BOND_LINK_UP);
> > slave->last_link_up = jiffies;
> > - slave_info(bond->dev, slave->dev, "link status up again after %d ms\n",
> > - (bond->params.downdelay - slave->delay) *
> > - bond->params.miimon);
> > + if (net_ratelimit())
> > + slave_info(bond->dev, slave->dev, "link status up again after %d ms\n",
> > + (bond->params.downdelay - slave->delay) *
> > + bond->params.miimon);
> > commit++;
> > continue;
> > }
> > @@ -2648,18 +2650,20 @@ static int bond_miimon_inspect(struct bonding *bond)
> > slave->delay = bond->params.updelay;
> >
> > if (slave->delay) {
> > - slave_info(bond->dev, slave->dev, "link status up, enabling it in %d ms\n",
> > - ignore_updelay ? 0 :
> > - bond->params.updelay *
> > - bond->params.miimon);
> > + if (net_ratelimit())
> > + slave_info(bond->dev, slave->dev, "link status up, enabling it in %d ms\n",
> > + ignore_updelay ? 0 :
> > + bond->params.updelay *
> > + bond->params.miimon);
> > }
> > fallthrough;
> > case BOND_LINK_BACK:
> > if (!link_state) {
> > bond_propose_link_state(slave, BOND_LINK_DOWN);
> > - slave_info(bond->dev, slave->dev, "link status down again after %d ms\n",
> > - (bond->params.updelay - slave->delay) *
> > - bond->params.miimon);
> > + if (net_ratelimit())
> > + slave_info(bond->dev, slave->dev, "link status down again after %d ms\n",
> > + (bond->params.updelay - slave->delay) *
> > + bond->params.miimon);
> > commit++;
> > continue;
> > }
> > --
> > 1.8.3.1
> >
^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: [PATCH RFC] bonding: rate-limit bonding driver inspect messages
2024-02-15 17:25 Praveen Kumar Kannoju
@ 2024-02-16 9:03 ` Hangbin Liu
2024-02-17 12:39 ` Praveen Kannoju
0 siblings, 1 reply; 10+ messages in thread
From: Hangbin Liu @ 2024-02-16 9:03 UTC (permalink / raw)
To: Praveen Kumar Kannoju
Cc: j.vosburgh, andy, davem, edumazet, kuba, pabeni, netdev,
linux-kernel, rajesh.sivaramasubramaniom, rama.nichanamatlu,
manjunath.b.patil
On Thu, Feb 15, 2024 at 10:55:54PM +0530, Praveen Kumar Kannoju wrote:
> Rate limit bond driver log messages, to prevent a log flood in a run-away
> situation, e.g couldn't get rtnl lock. Message flood leads to instability
> of system and loss of other crucial messages.
Hi Praveen,
The patch looks good to me. But would you please help explain why these
slave_info() are chosen under net_ratelimit?
Thanks
Hangbin
>
> v2: Use exising net_ratelimit() instead of introducing new rate-limit
> parameter.
>
> Signed-off-by: Praveen Kumar Kannoju <praveen.kannoju@oracle.com>
> ---
> drivers/net/bonding/bond_main.c | 36 ++++++++++++++++++++----------------
> 1 file changed, 20 insertions(+), 16 deletions(-)
>
> diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
> index 4e0600c..e92eba1 100644
> --- a/drivers/net/bonding/bond_main.c
> +++ b/drivers/net/bonding/bond_main.c
> @@ -2610,12 +2610,13 @@ static int bond_miimon_inspect(struct bonding *bond)
> commit++;
> slave->delay = bond->params.downdelay;
> if (slave->delay) {
> - slave_info(bond->dev, slave->dev, "link status down for %sinterface, disabling it in %d ms\n",
> - (BOND_MODE(bond) ==
> - BOND_MODE_ACTIVEBACKUP) ?
> - (bond_is_active_slave(slave) ?
> - "active " : "backup ") : "",
> - bond->params.downdelay * bond->params.miimon);
> + if (net_ratelimit())
> + slave_info(bond->dev, slave->dev, "link status down for %sinterface, disabling it in %d ms\n",
> + (BOND_MODE(bond) ==
> + BOND_MODE_ACTIVEBACKUP) ?
> + (bond_is_active_slave(slave) ?
> + "active " : "backup ") : "",
> + bond->params.downdelay * bond->params.miimon);
> }
> fallthrough;
> case BOND_LINK_FAIL:
> @@ -2623,9 +2624,10 @@ static int bond_miimon_inspect(struct bonding *bond)
> /* recovered before downdelay expired */
> bond_propose_link_state(slave, BOND_LINK_UP);
> slave->last_link_up = jiffies;
> - slave_info(bond->dev, slave->dev, "link status up again after %d ms\n",
> - (bond->params.downdelay - slave->delay) *
> - bond->params.miimon);
> + if (net_ratelimit())
> + slave_info(bond->dev, slave->dev, "link status up again after %d ms\n",
> + (bond->params.downdelay - slave->delay) *
> + bond->params.miimon);
> commit++;
> continue;
> }
> @@ -2648,18 +2650,20 @@ static int bond_miimon_inspect(struct bonding *bond)
> slave->delay = bond->params.updelay;
>
> if (slave->delay) {
> - slave_info(bond->dev, slave->dev, "link status up, enabling it in %d ms\n",
> - ignore_updelay ? 0 :
> - bond->params.updelay *
> - bond->params.miimon);
> + if (net_ratelimit())
> + slave_info(bond->dev, slave->dev, "link status up, enabling it in %d ms\n",
> + ignore_updelay ? 0 :
> + bond->params.updelay *
> + bond->params.miimon);
> }
> fallthrough;
> case BOND_LINK_BACK:
> if (!link_state) {
> bond_propose_link_state(slave, BOND_LINK_DOWN);
> - slave_info(bond->dev, slave->dev, "link status down again after %d ms\n",
> - (bond->params.updelay - slave->delay) *
> - bond->params.miimon);
> + if (net_ratelimit())
> + slave_info(bond->dev, slave->dev, "link status down again after %d ms\n",
> + (bond->params.updelay - slave->delay) *
> + bond->params.miimon);
> commit++;
> continue;
> }
> --
> 1.8.3.1
>
^ permalink raw reply [flat|nested] 10+ messages in thread
* RE: [PATCH RFC] bonding: rate-limit bonding driver inspect messages
2024-02-14 18:34 ` Jay Vosburgh
@ 2024-02-15 18:03 ` Praveen Kannoju
0 siblings, 0 replies; 10+ messages in thread
From: Praveen Kannoju @ 2024-02-15 18:03 UTC (permalink / raw)
To: Jay Vosburgh
Cc: andy, davem, edumazet, kuba, pabeni, netdev, linux-kernel,
Rajesh Sivaramasubramaniom, Rama Nichanamatlu, Manjunath Patil
> -----Original Message-----
> From: Jay Vosburgh <jay.vosburgh@canonical.com>
> Sent: 15 February 2024 12:05 AM
> To: Praveen Kannoju <praveen.kannoju@oracle.com>
> Cc: andy@greyhouse.net; davem@davemloft.net; edumazet@google.com; kuba@kernel.org; pabeni@redhat.com;
> netdev@vger.kernel.org; linux-kernel@vger.kernel.org; Rajesh Sivaramasubramaniom <rajesh.sivaramasubramaniom@oracle.com>;
> Rama Nichanamatlu <rama.nichanamatlu@oracle.com>; Manjunath Patil <manjunath.b.patil@oracle.com>
> Subject: Re: [PATCH RFC] bonding: rate-limit bonding driver inspect messages
>
> Praveen Kumar Kannoju <praveen.kannoju@oracle.com> wrote:
>
> >Rate limit bond driver log messages, to prevent a log flood in a
> >run-away situation, e.g couldn't get rtnl lock. Message flood leads to
> >instability of system and loss of other crucial messages.
> >
> >Signed-off-by: Praveen Kumar Kannoju <praveen.kannoju@oracle.com>
> >---
> > drivers/net/bonding/bond_main.c | 34 +++++++++++++++++++---------------
> > include/net/bonding.h | 11 +++++++++++
> > 2 files changed, 30 insertions(+), 15 deletions(-)
> >
> >diff --git a/drivers/net/bonding/bond_main.c
> >b/drivers/net/bonding/bond_main.c index 4e0600c..32098dd 100644
> >--- a/drivers/net/bonding/bond_main.c
> >+++ b/drivers/net/bonding/bond_main.c
> >@@ -2610,12 +2610,13 @@ static int bond_miimon_inspect(struct bonding *bond)
> > commit++;
> > slave->delay = bond->params.downdelay;
> > if (slave->delay) {
> >- slave_info(bond->dev, slave->dev, "link status down for %sinterface, disabling it in %d ms\n",
> >- (BOND_MODE(bond) ==
> >- BOND_MODE_ACTIVEBACKUP) ?
> >- (bond_is_active_slave(slave) ?
> >+ bond_info_rl(bond->dev, slave->dev,
> >+ "link status down for %sinterface, disabling it in %d ms\n",
> >+ (BOND_MODE(bond) ==
> >+ BOND_MODE_ACTIVEBACKUP) ?
> >+ (bond_is_active_slave(slave) ?
> > "active " : "backup ") : "",
> >- bond->params.downdelay * bond->params.miimon);
> >+ bond->params.downdelay * bond->params.miimon);
>
> Why not use net_info_ratelimited() or net_ratelimit()? The rest of the bonding messages that are rate limited are almost all
> gated by the net rate limiter.
>
> -J
Thank you for the reply, Jay. Yes, I agree. Used net_ratelimit() and resent the v2 patch. Please review and provide your comments.
>
> > }
> > fallthrough;
> > case BOND_LINK_FAIL:
> >@@ -2623,9 +2624,10 @@ static int bond_miimon_inspect(struct bonding *bond)
> > /* recovered before downdelay expired */
> > bond_propose_link_state(slave, BOND_LINK_UP);
> > slave->last_link_up = jiffies;
> >- slave_info(bond->dev, slave->dev, "link status up again after %d ms\n",
> >- (bond->params.downdelay - slave->delay) *
> >- bond->params.miimon);
> >+ bond_info_rl(bond->dev, slave->dev,
> >+ "link status up again after %d ms\n",
> >+ (bond->params.downdelay - slave->delay) *
> >+ bond->params.miimon);
> > commit++;
> > continue;
> > }
> >@@ -2648,18 +2650,20 @@ static int bond_miimon_inspect(struct bonding *bond)
> > slave->delay = bond->params.updelay;
> >
> > if (slave->delay) {
> >- slave_info(bond->dev, slave->dev, "link status up, enabling it in %d ms\n",
> >- ignore_updelay ? 0 :
> >- bond->params.updelay *
> >- bond->params.miimon);
> >+ bond_info_rl(bond->dev, slave->dev,
> >+ "link status up, enabling it in %d ms\n",
> >+ ignore_updelay ? 0 :
> >+ bond->params.updelay *
> >+ bond->params.miimon);
> > }
> > fallthrough;
> > case BOND_LINK_BACK:
> > if (!link_state) {
> > bond_propose_link_state(slave, BOND_LINK_DOWN);
> >- slave_info(bond->dev, slave->dev, "link status down again after %d ms\n",
> >- (bond->params.updelay - slave->delay) *
> >- bond->params.miimon);
> >+ bond_info_rl(bond->dev, slave->dev,
> >+ "link status down again after %d ms\n",
> >+ (bond->params.updelay - slave->delay) *
> >+ bond->params.miimon);
> > commit++;
> > continue;
> > }
> >diff --git a/include/net/bonding.h b/include/net/bonding.h index
> >5b8b1b6..ebdfaf0 100644
> >--- a/include/net/bonding.h
> >+++ b/include/net/bonding.h
> >@@ -39,8 +39,19 @@
> > #define __long_aligned __attribute__((aligned((sizeof(long)))))
> > #endif
> >
> >+DEFINE_RATELIMIT_STATE(bond_rs, DEFAULT_RATELIMIT_INTERVAL,
> >+ DEFAULT_RATELIMIT_BURST);
> >+
> >+#define bond_ratelimited_function(function, ...) \
> >+do { \
> >+ if (__ratelimit(&bond_rs)) \
> >+ function(__VA_ARGS__); \
> >+} while (0)
> >+
> > #define slave_info(bond_dev, slave_dev, fmt, ...) \
> > netdev_info(bond_dev, "(slave %s): " fmt, (slave_dev)->name,
> > ##__VA_ARGS__)
> >+#define bond_info_rl(bond_dev, slave_dev, fmt, ...) \
> >+ bond_ratelimited_function(slave_info, fmt, ##__VA_ARGS__)
> > #define slave_warn(bond_dev, slave_dev, fmt, ...) \
> > netdev_warn(bond_dev, "(slave %s): " fmt, (slave_dev)->name,
> >##__VA_ARGS__) #define slave_dbg(bond_dev, slave_dev, fmt, ...) \
> >--
> >1.8.3.1
> >
> >
>
> ---
> -Jay Vosburgh, jay.vosburgh@canonical.com
^ permalink raw reply [flat|nested] 10+ messages in thread
* [PATCH RFC] bonding: rate-limit bonding driver inspect messages
@ 2024-02-15 17:25 Praveen Kumar Kannoju
2024-02-16 9:03 ` Hangbin Liu
0 siblings, 1 reply; 10+ messages in thread
From: Praveen Kumar Kannoju @ 2024-02-15 17:25 UTC (permalink / raw)
To: j.vosburgh, andy, davem, edumazet, kuba, pabeni, netdev, linux-kernel
Cc: rajesh.sivaramasubramaniom, rama.nichanamatlu, manjunath.b.patil,
Praveen Kumar Kannoju
Rate limit bond driver log messages, to prevent a log flood in a run-away
situation, e.g couldn't get rtnl lock. Message flood leads to instability
of system and loss of other crucial messages.
v2: Use exising net_ratelimit() instead of introducing new rate-limit
parameter.
Signed-off-by: Praveen Kumar Kannoju <praveen.kannoju@oracle.com>
---
drivers/net/bonding/bond_main.c | 36 ++++++++++++++++++++----------------
1 file changed, 20 insertions(+), 16 deletions(-)
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 4e0600c..e92eba1 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -2610,12 +2610,13 @@ static int bond_miimon_inspect(struct bonding *bond)
commit++;
slave->delay = bond->params.downdelay;
if (slave->delay) {
- slave_info(bond->dev, slave->dev, "link status down for %sinterface, disabling it in %d ms\n",
- (BOND_MODE(bond) ==
- BOND_MODE_ACTIVEBACKUP) ?
- (bond_is_active_slave(slave) ?
- "active " : "backup ") : "",
- bond->params.downdelay * bond->params.miimon);
+ if (net_ratelimit())
+ slave_info(bond->dev, slave->dev, "link status down for %sinterface, disabling it in %d ms\n",
+ (BOND_MODE(bond) ==
+ BOND_MODE_ACTIVEBACKUP) ?
+ (bond_is_active_slave(slave) ?
+ "active " : "backup ") : "",
+ bond->params.downdelay * bond->params.miimon);
}
fallthrough;
case BOND_LINK_FAIL:
@@ -2623,9 +2624,10 @@ static int bond_miimon_inspect(struct bonding *bond)
/* recovered before downdelay expired */
bond_propose_link_state(slave, BOND_LINK_UP);
slave->last_link_up = jiffies;
- slave_info(bond->dev, slave->dev, "link status up again after %d ms\n",
- (bond->params.downdelay - slave->delay) *
- bond->params.miimon);
+ if (net_ratelimit())
+ slave_info(bond->dev, slave->dev, "link status up again after %d ms\n",
+ (bond->params.downdelay - slave->delay) *
+ bond->params.miimon);
commit++;
continue;
}
@@ -2648,18 +2650,20 @@ static int bond_miimon_inspect(struct bonding *bond)
slave->delay = bond->params.updelay;
if (slave->delay) {
- slave_info(bond->dev, slave->dev, "link status up, enabling it in %d ms\n",
- ignore_updelay ? 0 :
- bond->params.updelay *
- bond->params.miimon);
+ if (net_ratelimit())
+ slave_info(bond->dev, slave->dev, "link status up, enabling it in %d ms\n",
+ ignore_updelay ? 0 :
+ bond->params.updelay *
+ bond->params.miimon);
}
fallthrough;
case BOND_LINK_BACK:
if (!link_state) {
bond_propose_link_state(slave, BOND_LINK_DOWN);
- slave_info(bond->dev, slave->dev, "link status down again after %d ms\n",
- (bond->params.updelay - slave->delay) *
- bond->params.miimon);
+ if (net_ratelimit())
+ slave_info(bond->dev, slave->dev, "link status down again after %d ms\n",
+ (bond->params.updelay - slave->delay) *
+ bond->params.miimon);
commit++;
continue;
}
--
1.8.3.1
^ permalink raw reply related [flat|nested] 10+ messages in thread
* Re: [PATCH RFC] bonding: rate-limit bonding driver inspect messages
2024-02-14 4:42 Praveen Kumar Kannoju
@ 2024-02-14 18:34 ` Jay Vosburgh
2024-02-15 18:03 ` Praveen Kannoju
0 siblings, 1 reply; 10+ messages in thread
From: Jay Vosburgh @ 2024-02-14 18:34 UTC (permalink / raw)
To: Praveen Kumar Kannoju
Cc: andy, davem, edumazet, kuba, pabeni, netdev, linux-kernel,
rajesh.sivaramasubramaniom, rama.nichanamatlu, manjunath.b.patil
Praveen Kumar Kannoju <praveen.kannoju@oracle.com> wrote:
>Rate limit bond driver log messages, to prevent a log flood in a run-away
>situation, e.g couldn't get rtnl lock. Message flood leads to instability
>of system and loss of other crucial messages.
>
>Signed-off-by: Praveen Kumar Kannoju <praveen.kannoju@oracle.com>
>---
> drivers/net/bonding/bond_main.c | 34 +++++++++++++++++++---------------
> include/net/bonding.h | 11 +++++++++++
> 2 files changed, 30 insertions(+), 15 deletions(-)
>
>diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
>index 4e0600c..32098dd 100644
>--- a/drivers/net/bonding/bond_main.c
>+++ b/drivers/net/bonding/bond_main.c
>@@ -2610,12 +2610,13 @@ static int bond_miimon_inspect(struct bonding *bond)
> commit++;
> slave->delay = bond->params.downdelay;
> if (slave->delay) {
>- slave_info(bond->dev, slave->dev, "link status down for %sinterface, disabling it in %d ms\n",
>- (BOND_MODE(bond) ==
>- BOND_MODE_ACTIVEBACKUP) ?
>- (bond_is_active_slave(slave) ?
>+ bond_info_rl(bond->dev, slave->dev,
>+ "link status down for %sinterface, disabling it in %d ms\n",
>+ (BOND_MODE(bond) ==
>+ BOND_MODE_ACTIVEBACKUP) ?
>+ (bond_is_active_slave(slave) ?
> "active " : "backup ") : "",
>- bond->params.downdelay * bond->params.miimon);
>+ bond->params.downdelay * bond->params.miimon);
Why not use net_info_ratelimited() or net_ratelimit()? The rest
of the bonding messages that are rate limited are almost all gated by
the net rate limiter.
-J
> }
> fallthrough;
> case BOND_LINK_FAIL:
>@@ -2623,9 +2624,10 @@ static int bond_miimon_inspect(struct bonding *bond)
> /* recovered before downdelay expired */
> bond_propose_link_state(slave, BOND_LINK_UP);
> slave->last_link_up = jiffies;
>- slave_info(bond->dev, slave->dev, "link status up again after %d ms\n",
>- (bond->params.downdelay - slave->delay) *
>- bond->params.miimon);
>+ bond_info_rl(bond->dev, slave->dev,
>+ "link status up again after %d ms\n",
>+ (bond->params.downdelay - slave->delay) *
>+ bond->params.miimon);
> commit++;
> continue;
> }
>@@ -2648,18 +2650,20 @@ static int bond_miimon_inspect(struct bonding *bond)
> slave->delay = bond->params.updelay;
>
> if (slave->delay) {
>- slave_info(bond->dev, slave->dev, "link status up, enabling it in %d ms\n",
>- ignore_updelay ? 0 :
>- bond->params.updelay *
>- bond->params.miimon);
>+ bond_info_rl(bond->dev, slave->dev,
>+ "link status up, enabling it in %d ms\n",
>+ ignore_updelay ? 0 :
>+ bond->params.updelay *
>+ bond->params.miimon);
> }
> fallthrough;
> case BOND_LINK_BACK:
> if (!link_state) {
> bond_propose_link_state(slave, BOND_LINK_DOWN);
>- slave_info(bond->dev, slave->dev, "link status down again after %d ms\n",
>- (bond->params.updelay - slave->delay) *
>- bond->params.miimon);
>+ bond_info_rl(bond->dev, slave->dev,
>+ "link status down again after %d ms\n",
>+ (bond->params.updelay - slave->delay) *
>+ bond->params.miimon);
> commit++;
> continue;
> }
>diff --git a/include/net/bonding.h b/include/net/bonding.h
>index 5b8b1b6..ebdfaf0 100644
>--- a/include/net/bonding.h
>+++ b/include/net/bonding.h
>@@ -39,8 +39,19 @@
> #define __long_aligned __attribute__((aligned((sizeof(long)))))
> #endif
>
>+DEFINE_RATELIMIT_STATE(bond_rs, DEFAULT_RATELIMIT_INTERVAL,
>+ DEFAULT_RATELIMIT_BURST);
>+
>+#define bond_ratelimited_function(function, ...) \
>+do { \
>+ if (__ratelimit(&bond_rs)) \
>+ function(__VA_ARGS__); \
>+} while (0)
>+
> #define slave_info(bond_dev, slave_dev, fmt, ...) \
> netdev_info(bond_dev, "(slave %s): " fmt, (slave_dev)->name, ##__VA_ARGS__)
>+#define bond_info_rl(bond_dev, slave_dev, fmt, ...) \
>+ bond_ratelimited_function(slave_info, fmt, ##__VA_ARGS__)
> #define slave_warn(bond_dev, slave_dev, fmt, ...) \
> netdev_warn(bond_dev, "(slave %s): " fmt, (slave_dev)->name, ##__VA_ARGS__)
> #define slave_dbg(bond_dev, slave_dev, fmt, ...) \
>--
>1.8.3.1
>
>
---
-Jay Vosburgh, jay.vosburgh@canonical.com
^ permalink raw reply [flat|nested] 10+ messages in thread
* [PATCH RFC] bonding: rate-limit bonding driver inspect messages
@ 2024-02-14 4:42 Praveen Kumar Kannoju
2024-02-14 18:34 ` Jay Vosburgh
0 siblings, 1 reply; 10+ messages in thread
From: Praveen Kumar Kannoju @ 2024-02-14 4:42 UTC (permalink / raw)
To: j.vosburgh, andy, davem, edumazet, kuba, pabeni, netdev, linux-kernel
Cc: rajesh.sivaramasubramaniom, rama.nichanamatlu, manjunath.b.patil,
Praveen Kumar Kannoju
Rate limit bond driver log messages, to prevent a log flood in a run-away
situation, e.g couldn't get rtnl lock. Message flood leads to instability
of system and loss of other crucial messages.
Signed-off-by: Praveen Kumar Kannoju <praveen.kannoju@oracle.com>
---
drivers/net/bonding/bond_main.c | 34 +++++++++++++++++++---------------
include/net/bonding.h | 11 +++++++++++
2 files changed, 30 insertions(+), 15 deletions(-)
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 4e0600c..32098dd 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -2610,12 +2610,13 @@ static int bond_miimon_inspect(struct bonding *bond)
commit++;
slave->delay = bond->params.downdelay;
if (slave->delay) {
- slave_info(bond->dev, slave->dev, "link status down for %sinterface, disabling it in %d ms\n",
- (BOND_MODE(bond) ==
- BOND_MODE_ACTIVEBACKUP) ?
- (bond_is_active_slave(slave) ?
+ bond_info_rl(bond->dev, slave->dev,
+ "link status down for %sinterface, disabling it in %d ms\n",
+ (BOND_MODE(bond) ==
+ BOND_MODE_ACTIVEBACKUP) ?
+ (bond_is_active_slave(slave) ?
"active " : "backup ") : "",
- bond->params.downdelay * bond->params.miimon);
+ bond->params.downdelay * bond->params.miimon);
}
fallthrough;
case BOND_LINK_FAIL:
@@ -2623,9 +2624,10 @@ static int bond_miimon_inspect(struct bonding *bond)
/* recovered before downdelay expired */
bond_propose_link_state(slave, BOND_LINK_UP);
slave->last_link_up = jiffies;
- slave_info(bond->dev, slave->dev, "link status up again after %d ms\n",
- (bond->params.downdelay - slave->delay) *
- bond->params.miimon);
+ bond_info_rl(bond->dev, slave->dev,
+ "link status up again after %d ms\n",
+ (bond->params.downdelay - slave->delay) *
+ bond->params.miimon);
commit++;
continue;
}
@@ -2648,18 +2650,20 @@ static int bond_miimon_inspect(struct bonding *bond)
slave->delay = bond->params.updelay;
if (slave->delay) {
- slave_info(bond->dev, slave->dev, "link status up, enabling it in %d ms\n",
- ignore_updelay ? 0 :
- bond->params.updelay *
- bond->params.miimon);
+ bond_info_rl(bond->dev, slave->dev,
+ "link status up, enabling it in %d ms\n",
+ ignore_updelay ? 0 :
+ bond->params.updelay *
+ bond->params.miimon);
}
fallthrough;
case BOND_LINK_BACK:
if (!link_state) {
bond_propose_link_state(slave, BOND_LINK_DOWN);
- slave_info(bond->dev, slave->dev, "link status down again after %d ms\n",
- (bond->params.updelay - slave->delay) *
- bond->params.miimon);
+ bond_info_rl(bond->dev, slave->dev,
+ "link status down again after %d ms\n",
+ (bond->params.updelay - slave->delay) *
+ bond->params.miimon);
commit++;
continue;
}
diff --git a/include/net/bonding.h b/include/net/bonding.h
index 5b8b1b6..ebdfaf0 100644
--- a/include/net/bonding.h
+++ b/include/net/bonding.h
@@ -39,8 +39,19 @@
#define __long_aligned __attribute__((aligned((sizeof(long)))))
#endif
+DEFINE_RATELIMIT_STATE(bond_rs, DEFAULT_RATELIMIT_INTERVAL,
+ DEFAULT_RATELIMIT_BURST);
+
+#define bond_ratelimited_function(function, ...) \
+do { \
+ if (__ratelimit(&bond_rs)) \
+ function(__VA_ARGS__); \
+} while (0)
+
#define slave_info(bond_dev, slave_dev, fmt, ...) \
netdev_info(bond_dev, "(slave %s): " fmt, (slave_dev)->name, ##__VA_ARGS__)
+#define bond_info_rl(bond_dev, slave_dev, fmt, ...) \
+ bond_ratelimited_function(slave_info, fmt, ##__VA_ARGS__)
#define slave_warn(bond_dev, slave_dev, fmt, ...) \
netdev_warn(bond_dev, "(slave %s): " fmt, (slave_dev)->name, ##__VA_ARGS__)
#define slave_dbg(bond_dev, slave_dev, fmt, ...) \
--
1.8.3.1
^ permalink raw reply related [flat|nested] 10+ messages in thread
end of thread, other threads:[~2024-02-19 13:36 UTC | newest]
Thread overview: 10+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2024-02-19 11:31 [PATCH RFC] bonding: rate-limit bonding driver inspect messages Praveen Kumar Kannoju
2024-02-19 13:36 ` Praveen Kannoju
-- strict thread matches above, loose matches on Subject: below --
2024-02-15 17:25 Praveen Kumar Kannoju
2024-02-16 9:03 ` Hangbin Liu
2024-02-17 12:39 ` Praveen Kannoju
2024-02-18 3:09 ` Hangbin Liu
2024-02-19 11:35 ` Praveen Kannoju
2024-02-14 4:42 Praveen Kumar Kannoju
2024-02-14 18:34 ` Jay Vosburgh
2024-02-15 18:03 ` Praveen Kannoju
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