pstore: add interface for dumpers and add task list dumper

From: Dragos Tatulea <dragos.tatulea@intel.com>

This patchset adds an interface for registering various clients (dumpers)
that can save info into pstore at crash time.

Such a dumper is added which does task list dumping.

v2 changes:
v1 patchset was corrupted.

Adrian Hunter (4):
  pstore: add flags
  pstore: add debugfs support for causing dumps and panics
  pstore: add support for external writers
  pstore: do not run timer while pstore is not mounted

Dragos Tatulea (4):
  pstore: allow storing different type id's in ram backend
  pstore: add task list dumper
  pstore: make sure pstore_write exists on flush error
  pstore: max out console log level during sysfs dump switch

 fs/pstore/Kconfig      |   12 ++++
 fs/pstore/Makefile     |    1 +
 fs/pstore/dump_tasks.c |  107 ++++++++++++++++++++++++++++
 fs/pstore/inode.c      |    6 ++
 fs/pstore/internal.h   |    2 +
 fs/pstore/platform.c   |  184 ++++++++++++++++++++++++++++++++++++++++++++++--
 fs/pstore/ram.c        |   18 +++--
 include/linux/pstore.h |   46 ++++++++++--
 8 files changed, 356 insertions(+), 20 deletions(-)
 create mode 100644 fs/pstore/dump_tasks.c

-- 
1.7.9.5

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