linux-toradex.git/drivers/md/bcache/util.h, branch v4.10

bcache: remove driver private bio splitting code

2015-08-13T18:31:40+00:00

The bcache driver has always accepted arbitrarily large bios and split
them internally.  Now that every driver must accept arbitrarily large
bios this code isn't nessecary anymore.

Cc: linux-bcache@vger.kernel.org
Signed-off-by: Kent Overstreet 
[dpark: add more description in commit message]
Signed-off-by: Dongsu Park 
Signed-off-by: Ming Lin 
Signed-off-by: Jens Axboe

bcache: use kvfree() in various places

2015-07-01T02:45:00+00:00

Use kvfree() instead of open-coding it.

Signed-off-by: Pekka Enberg 
Cc: Kent Overstreet 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

bcache: Correct printing of btree_gc_max_duration_ms

2014-08-04T22:23:04+00:00

time_stats::btree_gc_max_duration_mc is not bit shifted by 8

Fixes BUG #138

Change-Id: I44fc6e1d0579674016acc533f1a546b080e5371a
Signed-off-by: Surbhi Palande

bcache: Convert debug code to btree_keys

2014-01-08T21:05:13+00:00

More work to disentangle various code from struct btree

Signed-off-by: Kent Overstreet

bcache: Remove/fix some header dependencies

2014-01-08T21:05:11+00:00

In the process of disentagling/libraryizing bset.c from the rest of the
bcache code.

Signed-off-by: Kent Overstreet

bcache: Fix heap_peek() macro

2013-12-16T22:22:57+00:00

Signed-off-by: Nicholas Swenson 
Signed-off-by: Kent Overstreet

bcache: Move spinlock into struct time_stats

2013-11-11T05:56:40+00:00

Minor cleanup.

Signed-off-by: Kent Overstreet

bcache: Debug code improvements

2013-11-11T05:56:34+00:00

Couple changes:
 * Consolidate bch_check_keys() and bch_check_key_order(), and move the
   checks that only check_key_order() could do to bch_btree_iter_next().

 * Get rid of CONFIG_BCACHE_EDEBUG - now, all that code is compiled in
   when CONFIG_BCACHE_DEBUG is enabled, and there's now a sysfs file to
   flip on the EDEBUG checks at runtime.

 * Dropped an old not terribly useful check in rw_unlock(), and
   refactored/improved a some of the other debug code.

Signed-off-by: Kent Overstreet

bcache: Pull on disk data structures out into a separate header

2013-11-11T05:56:33+00:00

Now, the on disk data structures are in a header that can be exported to
userspace - and having them all centralized is nice too.

Signed-off-by: Kent Overstreet

bcache: Fix a writeback performance regression

2013-09-24T21:41:43+00:00

Background writeback works by scanning the btree for dirty data and
adding those keys into a fixed size buffer, then for each dirty key in
the keybuf writing it to the backing device.

When read_dirty() finishes and it's time to scan for more dirty data, we
need to wait for the outstanding writeback IO to finish - they still
take up slots in the keybuf (so that foreground writes can check for
them to avoid races) - without that wait, we'll continually rescan when
we'll be able to add at most a key or two to the keybuf, and that takes
locks that starves foreground IO.  Doh.

Signed-off-by: Kent Overstreet 
Cc: linux-stable  # >= v3.10
Signed-off-by: Linus Torvalds