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bcache: Debug code improvements

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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 <kmo@daterainc.com>
This commit is contained in:
Kent Overstreet
2013-10-24 16:36:03 -07:00
parent e58ff15503
commit 280481d06c
11 changed files with 160 additions and 184 deletions
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4
drivers/md/bcache/util.h
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@@ -15,12 +15,12 @@
struct closure;
#ifdef CONFIG_BCACHE_EDEBUG
#ifdef CONFIG_BCACHE_DEBUG
#define atomic_dec_bug(v) BUG_ON(atomic_dec_return(v) < 0)
#define atomic_inc_bug(v, i) BUG_ON(atomic_inc_return(v) <= i)
#else /* EDEBUG */
#else /* DEBUG */
#define atomic_dec_bug(v) atomic_dec(v)
#define atomic_inc_bug(v, i) atomic_inc(v)