[PATCH v5 00/12] pstore: mtd: support crash log to block and mtd device

[WeiXiong Liao]

This is a series to support crash log to block and mtd device,
base on v4 of Kees Cook's.

Changes since v4:
	patch 1: adapt pstore to kmsg_dump_reason_str().
	patch 2: fix bugs that decompress failed and rmmod failed.
			 use atomic_xchg() on psz_flush_dirty_zone() in case of reload.
	patch 3: fix build error
	patch 5: flush pmsg zone if it's dirty.
	patch 6: use delayed work to cache more data and reduce calling
			 dirty-flusher times
	patch 12: change dev_err() to pr_err() when initialize because it get
			  no pointer to mtd at that time.

v4: https://lore.kernel.org/lkml/20200508064004.57898-1-keescook@xxxxxxxxxxxx/
v3: https://lore.kernel.org/lkml/1585126506-18635-1-git-send-email-liaoweixiong@xxxxxxxxxxxxxxxxx/
v2: https://lore.kernel.org/lkml/1581078355-19647-1-git-send-email-liaoweixiong@xxxxxxxxxxxxxxxxx/
v1: https://lore.kernel.org/lkml/1579482233-2672-1-git-send-email-liaoweixiong@xxxxxxxxxxxxxxxxx/

Kees Cook (1):
  printk: pstore: Introduce kmsg_dump_reason_str()

WeiXiong Liao (11):
  pstore/zone: Introduce common layer to manage storage zones
  pstore/blk: Introduce backend for block devices
  pstore/blk: Provide way to choose pstore frontend support
  pstore/blk: Add support for pmsg frontend
  pstore/blk: Add console frontend support
  pstore/blk: Add ftrace frontend support
  Documentation: Add details for pstore/blk
  pstore/zone: Provide way to skip "broken" zone for MTD devices
  pstore/blk: Provide way to query pstore configuration
  pstore/blk: Support non-block storage devices
  mtd: Support kmsg dumper based on pstore/blk

 Documentation/admin-guide/pstore-blk.rst |  243 +++++
 MAINTAINERS                              |    1 +
 drivers/mtd/Kconfig                      |   10 +
 drivers/mtd/Makefile                     |    1 +
 drivers/mtd/mtdpstore.c                  |  563 +++++++++++
 fs/pstore/Kconfig                        |  109 +++
 fs/pstore/Makefile                       |    6 +
 fs/pstore/blk.c                          |  481 ++++++++++
 fs/pstore/platform.c                     |   22 +-
 fs/pstore/zone.c                         | 1508 ++++++++++++++++++++++++++++++
 include/linux/kmsg_dump.h                |    7 +
 include/linux/pstore_blk.h               |   77 ++
 include/linux/pstore_zone.h              |   60 ++
 kernel/printk/printk.c                   |   21 +
 14 files changed, 3088 insertions(+), 21 deletions(-)
 create mode 100644 Documentation/admin-guide/pstore-blk.rst
 create mode 100644 drivers/mtd/mtdpstore.c
 create mode 100644 fs/pstore/blk.c
 create mode 100644 fs/pstore/zone.c
 create mode 100644 include/linux/pstore_blk.h
 create mode 100644 include/linux/pstore_zone.h

-- 
1.9.1