All of lore.kernel.org
 help / color / mirror / Atom feed
From: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.kw@hitachi.com>
To: Anton Vorontsov <anton@enomsg.org>,
	Colin Cross <ccross@android.com>,
	Kees Cook <keescook@chromium.org>,
	Tony Luck <tony.luck@intel.com>
Cc: linux-kernel@vger.kernel.org,
	cti.systems-productivity-manager.ts@hitachi.com,
	Nobuhiro Iwamatsu <nobuhiro.iwamatsu.kw@hitachi.com>
Subject: [PATCH v3 0/8] pstore: ramoops: support multiple pmsg instances
Date: Tue, 18 Oct 2016 16:13:26 +0900	[thread overview]
Message-ID: <1476774814-6840-1-git-send-email-nobuhiro.iwamatsu.kw@hitachi.com> (raw)

The following series implements multiple pmsg. This feature allows
userspace program to control individual content aging or priority.

If a pstore backend module(e.g. ramoops) requires the multiple pmsg
instances when registering itself to pstore, multiple /dev/pmsg[ID]
are created. Writes to each /dev/pmsg[ID] are isolated each other. After
reboot, the contents are available in /sys/fs/pstore/pmsg-[backend]-[ID].

In addition, we add multiple pmsg support for ramoops. We can
specify multiple pmsg area size by its module parameter as follows.

 pmsg_size=0x1000,0x2000,...

I did check the operation of this feature on CycloneV (socfpga) Helio board.

v3:
  Rebase to v4.8.
  Split patch.
  merged device_create().
  Remove Blank lines.
  Update documentiation of DT binding.
  Update parsing function of ramoops_pmsg_size, add NULL termination.
  Update module parameters for pmsg_size list.

Hiraku Toyooka (2):
  pstore: support multiple pmsg instances
  selftests/pstore: add testcases for multiple pmsg instances

Nobuhiro Iwamatsu (6):
  pstore: Replace four kzalloc() calls by kcalloc() in ramoops_init_przs()
  pstore: Change parameter of ramoops_free_przs()
  ramoops: Add __ramoops_init_prz() as generic function
  pstore: Rename 'przs' to 'dprzs' in struct ramoops_context
  ramoops: Rename ramoops_init_prz() to ramoops_init_dprzs()
  ramoops: support multiple pmsg instances

 .../bindings/reserved-memory/ramoops.txt           |   6 +-
 Documentation/ramoops.txt                          |  22 ++
 fs/pstore/pmsg.c                                   |  23 +-
 fs/pstore/ram.c                                    | 344 ++++++++++++++++-----
 include/linux/pstore.h                             |   1 +
 include/linux/pstore_ram.h                         |   8 +-
 tools/testing/selftests/pstore/common_tests        |  21 +-
 .../selftests/pstore/pstore_post_reboot_tests      |  27 +-
 tools/testing/selftests/pstore/pstore_tests        |  14 +-
 9 files changed, 360 insertions(+), 106 deletions(-)

-- 
2.9.3

             reply	other threads:[~2016-10-18  7:14 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-10-18  7:13 Nobuhiro Iwamatsu [this message]
2016-10-18  7:13 ` [PATCH v3 1/8] pstore: Replace four kzalloc() calls by kcalloc() in ramoops_init_przs() Nobuhiro Iwamatsu
2016-10-18  7:13 ` [PATCH v3 2/8] pstore: Change parameter of ramoops_free_przs() Nobuhiro Iwamatsu
2016-10-18  7:13 ` [PATCH v3 3/8] ramoops: Add __ramoops_init_prz() as generic function Nobuhiro Iwamatsu
2016-10-18  7:13 ` [PATCH v3 4/8] pstore: Rename 'przs' to 'dprzs' in struct ramoops_context Nobuhiro Iwamatsu
2016-10-18  7:13 ` [PATCH v3 5/8] ramoops: Rename ramoops_init_prz() to ramoops_init_dprzs() Nobuhiro Iwamatsu
2016-10-18  7:13 ` [PATCH v3 6/8] pstore: support multiple pmsg instances Nobuhiro Iwamatsu
2016-10-18  7:13 ` [PATCH v3 7/8] ramoops: " Nobuhiro Iwamatsu
2016-10-18  7:13 ` [PATCH v3 8/8] selftests/pstore: add testcases for " Nobuhiro Iwamatsu
2016-11-11 22:24 ` [PATCH v3 0/8] pstore: ramoops: support " Kees Cook
2016-12-05  1:47   ` 岩松信洋 / IWAMATSU，NOBUHIRO
2016-12-27  0:48     ` 岩松信洋 / IWAMATSU，NOBUHIRO
2017-01-04  6:20       ` Kees Cook

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=1476774814-6840-1-git-send-email-nobuhiro.iwamatsu.kw@hitachi.com \
    --to=nobuhiro.iwamatsu.kw@hitachi.com \
    --cc=anton@enomsg.org \
    --cc=ccross@android.com \
    --cc=cti.systems-productivity-manager.ts@hitachi.com \
    --cc=keescook@chromium.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=tony.luck@intel.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.