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From: Joe Perches <joe@perches.com>
To: Kees Cook <keescook@chromium.org>,
	Pavel Tatashin <pasha.tatashin@soleen.com>
Cc: Anton Vorontsov <anton@enomsg.org>,
	Colin Cross <ccross@android.com>, Tony Luck <tony.luck@intel.com>,
	Jonathan Corbet <corbet@lwn.net>,
	Rob Herring <robh+dt@kernel.org>,
	Benson Leung <bleung@chromium.org>,
	Enric Balletbo i Serra <enric.balletbo@collabora.com>,
	Petr Mladek <pmladek@suse.com>,
	Sergey Senozhatsky <sergey.senozhatsky@gmail.com>,
	Steven Rostedt <rostedt@goodmis.org>,
	jmorris@namei.org, sashal@kernel.org, linux-doc@vger.kernel.org,
	linux-kernel@vger.kernel.org, devicetree@vger.kernel.org
Subject: Re: [PATCH v3 2/6] pstore/platform: Pass max_reason to kmesg dump
Date: Wed, 06 May 2020 14:25:41 -0700
Message-ID: <4cdeaa2af2fe0d6cc2ca8ce3a37608340799df8a.camel@perches.com> (raw)
In-Reply-To: <20200506211523.15077-3-keescook@chromium.org>

On Wed, 2020-05-06 at 14:15 -0700, Kees Cook wrote:
> From: Pavel Tatashin <pasha.tatashin@soleen.com>
> 
> Add a new member to struct pstore_info for passing information about
> kmesg dump maximum reason. This allows a finer control of what kmesg
> dumps are sent to pstore storage backends.

trivia:

> diff --git a/include/linux/pstore.h b/include/linux/pstore.h
[]
> @@ -96,6 +96,12 @@ struct pstore_record {
>   *
>   * @read_mutex:	serializes @open, @read, @close, and @erase callbacks
>   * @flags:	bitfield of frontends the backend can accept writes for
> + * @max_reason:	Used when PSTORE_FLAGS_DMESG is set. Contains the
> + *		kmsg_dump_reason enum value. KMSG_DUMP_UNDEF means
> + *		"use existing kmsg_dump() filtering, based on the
> + *		printk.always_kmsg_dump boot param" (which is either
> + *		KMSG_DUMP_OOPS when false, or KMSG_DUMP_MAX when
> + *		tree); see printk.always_kmsg_dump for more details.

s/tree/true/



  reply index

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-06 21:15 [PATCH v3 0/6] allow ramoops to collect all kmesg_dump events Kees Cook
2020-05-06 21:15 ` [PATCH v3 1/6] printk: honor the max_reason field in kmsg_dumper Kees Cook
2020-05-06 21:15 ` [PATCH v3 2/6] pstore/platform: Pass max_reason to kmesg dump Kees Cook
2020-05-06 21:25   ` Joe Perches [this message]
2020-05-06 22:40     ` Kees Cook
2020-05-06 21:15 ` [PATCH v3 3/6] pstore/ram: Refactor DT size parsing Kees Cook
2020-05-07 12:57   ` Pavel Tatashin
2020-05-07 18:04     ` Kees Cook
2020-05-06 21:15 ` [PATCH v3 4/6] pstore/ram: Introduce max_reason and convert dump_oops Kees Cook
2020-05-06 21:17   ` Kees Cook
2020-05-12 23:35   ` Tyler Hicks
2020-05-12 23:57     ` Kees Cook
2020-05-16  2:43     ` Kees Cook
2020-05-06 21:15 ` [PATCH v3 5/6] ramoops: Add max_reason optional field to ramoops DT node Kees Cook
2020-05-06 21:15 ` [PATCH v3 6/6] pstore/ram: Adjust module param permissions to reflect reality Kees Cook
2020-05-12 13:16 ` [PATCH v3 0/6] allow ramoops to collect all kmesg_dump events Petr Mladek
2020-05-12 14:03   ` Pavel Tatashin
2020-05-12 15:52     ` Petr Mladek
2020-05-12 16:03       ` Steven Rostedt
2020-05-12 16:49       ` Pavel Tatashin
2020-05-12 18:53         ` Kees Cook
2020-05-12 18:45       ` Kees Cook
2020-05-13  7:34         ` Petr Mladek
2020-05-13  7:47           ` Kees Cook
2020-05-13 14:35             ` Pavel Tatashin
2020-05-13 20:15               ` Kees Cook

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