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From: Jeff Layton <jlayton@kernel.org>
To: Trond Myklebust <trondmy@kernel.org>,
	Anna Schumaker <anna@kernel.org>,
	 Chuck Lever <chuck.lever@oracle.com>,
	NeilBrown <neil@brown.name>,
	 Olga Kornievskaia <okorniev@redhat.com>,
	Dai Ngo <Dai.Ngo@oracle.com>,  Tom Talpey <tom@talpey.com>,
	"David S. Miller" <davem@davemloft.net>,
	 Eric Dumazet <edumazet@google.com>,
	Jakub Kicinski <kuba@kernel.org>,
	 Paolo Abeni <pabeni@redhat.com>, Simon Horman <horms@kernel.org>
Cc: linux-nfs@vger.kernel.org, linux-kernel@vger.kernel.org,
	 netdev@vger.kernel.org, Jeff Layton <jlayton@kernel.org>
Subject: [PATCH v2 0/2] sunrpc: allow dprintk() to go to the trace buffer instead of console
Date: Fri, 22 Aug 2025 09:19:21 -0400	[thread overview]
Message-ID: <20250822-nfs-testing-v2-0-5f6034b16e46@kernel.org> (raw)

While we have added a lot of static tracepoints in the last few years,
we still have a load of dprintks in place at all levels of the
NFS/NLM/RPC stack. At the same time, they're pretty useless under any
significant load due to the console overhead.

This adds a new Kconfig switch to allow those to go to the trace buffer
instead. In addition to being more efficient, that allows us to enable
static tracepoints alongside dprintk() and get a unified log.

Signed-off-by: Jeff Layton <jlayton@kernel.org>
---
Changes in v2:
- pr_default() doesn't exist. Use printk(KERN_DEFAULT ...) instead.
- Link to v1: https://lore.kernel.org/r/20250821-nfs-testing-v1-0-f06099963eda@kernel.org

---
Jeff Layton (2):
      sunrpc: remove dfprintk_cont() and dfprintk_rcu_cont()
      sunrpc: add a Kconfig option to redirect dfprintk() output to trace buffer

 fs/nfs/write.c               |  6 +++---
 include/linux/sunrpc/debug.h | 30 ++++++++----------------------
 net/sunrpc/Kconfig           | 14 ++++++++++++++
 3 files changed, 25 insertions(+), 25 deletions(-)
---
base-commit: 80a1bea0cd81de70c56b37a8292c23d57419776f
change-id: 20250821-nfs-testing-2b21070952d4

Best regards,
-- 
Jeff Layton <jlayton@kernel.org>


             reply	other threads:[~2025-08-22 13:19 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-08-22 13:19 Jeff Layton [this message]
2025-08-22 13:19 ` [PATCH v2 1/2] sunrpc: remove dfprintk_cont() and dfprintk_rcu_cont() Jeff Layton
2025-08-27 14:23   ` Simon Horman
2025-08-27 14:41   ` Chuck Lever
2025-08-22 13:19 ` [PATCH v2 2/2] sunrpc: add a Kconfig option to redirect dfprintk() output to trace buffer Jeff Layton
2025-08-27 14:24   ` Simon Horman
2025-08-27 14:43   ` Chuck Lever

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