[GIT PULL] Bcache fixes for 3.10

From: Kent Overstreet
Date: Tue Apr 30 2013 - 15:52:23 EST

Hey Jens, this is everything I've got ready for 3.10 - there's _still_
one more bug I'm trying to track down.

Andrew - I've got patches that rip out the pkey() and pbtree() macros,
but they're somewhat tied up with some other nontrivial refactorings so
I think I'm going to wait a bit on those.

The following changes since commit cef5279735d3f6f0243e626963e6d5c84efade0a:

bcache: Disable broken btree fuzz tester (2013-04-08 13:33:49 -0700)

are available in the git repository at:

http://evilpiepirate.org/git/linux-bcache.git bcache-for-upstream

for you to fetch changes up to cd66f1f69ed40270bb34e20b25a8111bc72a1b2a:

bcache: Use bd_link_disk_holder() (2013-04-24 13:15:17 -0700)

Kent Overstreet (8):
bcache: Take data offset from the bdev superblock.
bcache: Set ra_pages based on backing device's ra_pages
bcache: Hack around stuff that clones up to bi_max_vecs
bcache: Correctly check against BIO_MAX_PAGES
bcache: Fix merge_bvec_fn usage for when it modifies the bvm
bcache: Make sure blocksize isn't smaller than device blocksize
bcache: Allocator cleanup/fixes
bcache: Use bd_link_disk_holder()

drivers/md/bcache/alloc.c | 74 +++++++++++++-------
drivers/md/bcache/bcache.h | 48 ++++++++++---
drivers/md/bcache/btree.c | 8 +--
drivers/md/bcache/io.c | 35 ++++++----
drivers/md/bcache/request.c | 2 +-
drivers/md/bcache/super.c | 166 +++++++++++++++++++++++++++-----------------
6 files changed, 215 insertions(+), 118 deletions(-)
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