[PATCH 0/2 v2] dcache: get/release read lock in read_seqbegin_or_lock() & friend

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Change log
----------
v1->v2:
  - Rename the new seqlock primitives to read_seqexcl_lock* and
    read_seqexcl_unlock*.
  - Clarify in the commit log and comments about the exclusive nature
    of the read lock.

Waiman Long (2):
  seqlock: Add a new locking reader type
  dcache: get/release read lock in read_seqbegin_or_lock() & friend

 fs/dcache.c             |   31 +++++++++++----------
 include/linux/seqlock.h |   68 +++++++++++++++++++++++++++++++++++++++++++---
 2 files changed, 79 insertions(+), 20 deletions(-)

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