Merge Incremental fs branch 'remotes/origin/tmp-04df3ce7' into msm-4.14

* remotes/origin/tmp-04df3ce7:
  ANDROID: Incremental fs: Remove dependency on PKCS7_MESSAGE_PARSER
  ANDROID: Incremental fs: Cache successful hash calculations
  ANDROID: Incremental fs: Fix four error-path bugs
  Revert "ANDROID: Incremental fs: Avoid continually recalculating hashes"
  ANDROID: Incremental fs: wake up log pollers less often
  ANDROID: Incremental fs: Fix scheduling while atomic error
  ANDROID: Incremental fs: Avoid continually recalculating hashes
  ANDROID: Incremental fs: Fix issues with very large files
  ANDROID: Incremental fs: Add setattr call
  ANDROID: Incremental fs: Use simple compression in log buffer
  ANDROID: Incremental fs: Fix create_file performance
  ANDROID: Incremental fs: Fix compound page usercopy crash
  ANDROID: Incremental fs: make remount log buffer change atomic
  ANDROID: Incremental fs: Optimize get_filled_block
  ANDROID: Incremental fs: Fix mislabeled __user ptrs
  ANDROID: Incremental fs: Use 64-bit int for file_size when writing hash blocks
  Revert "ANDROID: Incremental fs: Fix initialization, use of bitfields"
  ANDROID: Incremental fs: Fix remount
  ANDROID: Incremental fs: Protect get_fill_block, and add a field
  ANDROID: Incremental fs: Fix crash polling 0 size read_log
  ANDROID: Incremental fs: get_filled_blocks: better index_out
  ANDROID: Incremental fs: Fix four resource bugs
  ANDROID: Incremental fs: Add INCFS_IOC_GET_FILLED_BLOCKS
  ANDROID: Incremental fs: Fix two typos
  ANDROID: Incremental fs: Add INCFS_IOC_PERMIT_FILL
  ANDROID: Incremental fs: Remove signature checks from kernel
  ANDROID: Incremental fs: Pad hash blocks
  ANDROID: Incremental fs: Make fill block an ioctl
  ANDROID: Incremental fs: Remove all access_ok checks
  ANDROID: Incremental fs: Support xattrs
  ANDROID: Incremental fs: Fix initialization, use of bitfields
  ANDROID: Incremental fs: Fix crash on failed lookup
  ANDROID: Incremental fs: Make files writeable
  ANDROID: Incremental fs: Remove C++-style comments

Change-Id: I862735f40fbef0314e6ce61bf30b0c845f83703f
Signed-off-by: Sayali Lokhande <sayalil@codeaurora.org>