From: Joe Perches <joe@perches.com>
To: David Laight <David.Laight@ACULAB.COM>,
John Ogness <john.ogness@linutronix.de>,
Linus Torvalds <torvalds@linux-foundation.org>
Cc: Petr Mladek <pmladek@suse.com>,
Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>,
Steven Rostedt <rostedt@goodmis.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Thomas Gleixner <tglx@linutronix.de>,
Sergey Senozhatsky <sergey.senozhatsky@gmail.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [RFC PATCH 1/5] printk: implement pr_cont_t
Date: Thu, 20 Aug 2020 00:59:30 -0700 [thread overview]
Message-ID: <29b6120680fbfb51936bb9100b2c9bb78385aef0.camel@perches.com> (raw)
In-Reply-To: <b17fc8afc8984fedb852921366190104@AcuMS.aculab.com>
On Thu, 2020-08-20 at 07:44 +0000, David Laight wrote:
> I've no idea how you'd 'size' the number of buffers.
I believe they are static and assume no more than 10
simultaneous uses of
printk_begin
+#define CONT_LINE_MAX LOG_LINE_MAX
+#define CONT_BUF_COUNT 10
+static char cont_buf[CONT_BUF_COUNT][CONT_LINE_MAX];
+static DECLARE_BITMAP(cont_buf_map, CONT_BUF_COUNT);
Though I don't see much value in a separate define
for CONT_LINE_MAx
next prev parent reply other threads:[~2020-08-20 7:59 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-19 23:26 [RFC PATCH 0/5] printk: new log_cont implementation John Ogness
2020-08-19 23:26 ` [RFC PATCH 1/5] printk: implement pr_cont_t John Ogness
2020-08-20 0:33 ` Joe Perches
2020-08-20 7:44 ` David Laight
2020-08-20 7:59 ` Joe Perches [this message]
2020-08-20 8:49 ` David Laight
2020-08-20 9:18 ` John Ogness
2020-08-20 16:03 ` Joe Perches
2020-08-20 10:16 ` Petr Mladek
2020-08-20 12:33 ` David Laight
2020-08-25 13:10 ` Petr Mladek
2020-08-25 13:38 ` David Laight
2020-08-25 15:32 ` Petr Mladek
2020-08-24 2:08 ` Sergey Senozhatsky
2020-08-24 5:37 ` Sergey Senozhatsky
2020-08-19 23:26 ` [RFC PATCH 2/5] sysrq: use pr_cont_t for cont messages John Ogness
2020-08-20 1:03 ` Linus Torvalds
2020-08-20 17:48 ` Joe Perches
2020-08-20 17:53 ` Linus Torvalds
2020-08-20 22:11 ` John Ogness
2020-08-20 22:36 ` Joe Perches
2020-08-19 23:26 ` [RFC PATCH 3/5] workqueue: " John Ogness
2020-08-19 23:26 ` [RFC PATCH 4/5] locking/selftest: " John Ogness
2020-08-19 23:26 ` [RFC PATCH 5/5] lockdep: " John Ogness
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