[GIT PULL] pstore updates for v4.12-rc1

[Kees Cook]

Hi,

Please pull these pstore changes for v4.12-rc1. This has a large internal
refactoring along with several smaller fixes.

Thanks!

-Kees

The following changes since commit c1ae3cfa0e89fa1a7ecc4c99031f5e9ae99d9201:

  Linux 4.11-rc1 (2017-03-05 12:59:56 -0800)

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git tags/pstore-v4.12-rc1

for you to fetch changes up to 3a7d2fd16c57a1ef47dc2891171514231c9c7c6e:

  pstore: Solve lockdep warning by moving inode locks (2017-04-27 20:35:34 -0700)

----------------------------------------------------------------
- constify compression structures; Bhumika Goyal
- restore powerpc dumping; Ankit Kumar
- fix more bugs in the rarely exercises module unloading logic
- reorganize filesystem locking to fix problems noticed by lockdep
- refactor internal pstore APIs to make development and review easier:
  - improve error reporting
  - add kernel-doc structure and function comments
  - avoid insane argument passing by using a common record structure

----------------------------------------------------------------
Ankit Kumar (1):
      pstore: Fix flags to enable dumps on powerpc

Bhumika Goyal (1):
      pstore: constify pstore_zbackend structures

Geliang Tang (1):
      pstore: Remove unused vmalloc.h in pmsg

Kees Cook (20):
      pstore: Use dynamic spinlock initializer
      pstore: Shut down worker when unregistering
      pstore: Avoid race in module unloading
      pstore: Improve register_pstore() error reporting
      pstore: Add kernel-doc for struct pstore_info
      pstore: Extract common arguments into structure
      pstore: Move record decompression to function
      pstore: Switch pstore_mkfile to pass record
      pstore: Replace arguments for read() API
      pstore: Replace arguments for write() API
      pstore: Always allocate buffer for decompression
      pstore: Pass record contents instead of copying
      pstore: Allocate records on heap instead of stack
      pstore: Do not duplicate record metadata
      pstore: Replace arguments for erase() API
      pstore: Replace arguments for write_buf() API
      pstore: Replace arguments for write_buf_user() API
      pstore: Remove write_buf() callback
      pstore: simplify write_user_compat()
      pstore: Solve lockdep warning by moving inode locks

 arch/powerpc/kernel/nvram_64.c    |  89 +++++------
 drivers/acpi/apei/erst.c          |  64 ++++----
 drivers/firmware/efi/efi-pstore.c | 148 ++++++++-----------
 fs/pstore/ftrace.c                |  11 +-
 fs/pstore/inode.c                 | 147 +++++++++++--------
 fs/pstore/internal.h              |   8 +-
 fs/pstore/platform.c              | 301 ++++++++++++++++++++++----------------
 fs/pstore/pmsg.c                  |  12 +-
 fs/pstore/ram.c                   | 130 ++++++++--------
 fs/pstore/ram_core.c              |   2 +-
 include/linux/pstore.h            | 156 ++++++++++++++++----
 11 files changed, 607 insertions(+), 461 deletions(-)

-- 
Kees Cook
Pixel Security