[GIT PULL] printk for 5.13

From: Petr Mladek <pmladek@suse.com>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Sergey Senozhatsky <senozhatsky@chromium.org>,
	Steven Rostedt <rostedt@goodmis.org>,
	John Ogness <john.ogness@linutronix.de>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Rasmus Villemoes <linux@rasmusvillemoes.dk>,
	Peter Zijlstra <peterz@infradead.org>,
	linux-kernel@vger.kernel.org
Subject: [GIT PULL] printk for 5.13
Date: Tue, 27 Apr 2021 15:53:46 +0200	[thread overview]
Message-ID: <YIgXasI86BwJvQ0Z@alley> (raw)

Linus,

please pull the latest printk changes from

  git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux.git tags/printk-for-5.13

==============================

- Stop synchronizing kernel log buffer readers by logbuf_lock.
  As a result, the access to the buffer is fully lockless now.

  Note that printk() itself still uses locks because it tries to
  flush the messages to the console immediately. Also the per-CPU
  temporary buffers are still there because they prevent infinite
  recursion and serialize backtraces from NMI. All this is going
  to change in the future.

- kmsg_dump API rework and cleanup as a side effect of
  the logbuf_lock removal.

- Make bstr_printf() aware that %pf and %pF formats could
  deference the given pointer.

- Show also page flags by %pGp format.

- Clarify the documentation for plain pointer printing.

- Do not show no_hash_pointers warning multiple times.

- Update Senozhatsky email address.

- Some clean up.

----------------------------------------------------------------
Bhaskar Chowdhury (1):
      kernel/printk.c: Fixed mundane typos

John Ogness (15):
      um: synchronize kmsg_dumper
      mtd: mtdoops: synchronize kmsg_dumper
      printk: limit second loop of syslog_print_all
      printk: kmsg_dump: remove unused fields
      printk: refactor kmsg_dump_get_buffer()
      printk: consolidate kmsg_dump_get_buffer/syslog_print_all code
      printk: introduce CONSOLE_LOG_MAX
      printk: use seqcount_latch for clear_seq
      printk: use atomic64_t for devkmsg_user.seq
      printk: add syslog_lock
      printk: kmsg_dumper: remove @active field
      printk: introduce a kmsg_dump iterator
      printk: remove logbuf_lock
      printk: kmsg_dump: remove _nolock() variants
      printk: console: remove unnecessary safe buffer usage

Marco Elver (1):
      lib/vsprintf: do not show no_hash_pointers message multiple times

Petr Mladek (2):
      Merge branch 'for-5.13-vsprintf-pgp' into for-linus
      Merge branch 'printk-rework' into for-linus

Rasmus Villemoes (2):
      printk: rename vprintk_func to vprintk
      lib/vsprintf.c: remove leftover 'f' and 'F' cases from bstr_printf()

Sergey Senozhatsky (1):
      MAINTAINERS: update Senozhatsky email address

Vlastimil Babka (1):
      printk: clarify the documentation for plain pointer printing

Yafang Shao (3):
      mm, slub: use pGp to print page flags
      mm, slub: don't combine pr_err with INFO
      vsprintf: dump full information of page flags in pGp

 Documentation/core-api/printk-formats.rst |  28 +-
 MAINTAINERS                               |   8 +-
 arch/powerpc/kernel/nvram_64.c            |   8 +-
 arch/powerpc/xmon/xmon.c                  |   6 +-
 arch/um/kernel/kmsg_dump.c                |  13 +-
 drivers/hv/vmbus_drv.c                    |   4 +-
 drivers/mtd/mtdoops.c                     |  17 +-
 fs/pstore/platform.c                      |   5 +-
 include/linux/kmsg_dump.h                 |  47 ++-
 kernel/debug/kdb/kdb_main.c               |  10 +-
 kernel/printk/internal.h                  |   7 +-
 kernel/printk/printk.c                    | 478 +++++++++++++++---------------
 kernel/printk/printk_safe.c               |  30 +-
 lib/test_printf.c                         |  90 +++++-
 lib/vsprintf.c                            |  78 ++++-
 mm/slub.c                                 |  13 +-
 16 files changed, 502 insertions(+), 340 deletions(-)