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authorKent Overstreet <koverstreet@google.com>2013-04-27 02:39:55 +0400
committerKent Overstreet <koverstreet@google.com>2013-06-27 04:09:15 +0400
commitc37511b863f36c1cc6e18440717fd4cc0e881b8a (patch)
tree64d82c648bd092f38c35c4b808411bc1cdb3a9f0 /drivers/md/bcache/sysfs.c
parent5794351146199b9ac67a5ab1beab82be8bfd7b5d (diff)
downloadlinux-c37511b863f36c1cc6e18440717fd4cc0e881b8a.tar.xz
bcache: Fix/revamp tracepoints
The tracepoints were reworked to be more sensible, and fixed a null pointer deref in one of the tracepoints. Converted some of the pr_debug()s to tracepoints - this is partly a performance optimization; it used to be that with DEBUG or CONFIG_DYNAMIC_DEBUG pr_debug() was an empty macro; but at some point it was changed to an empty inline function. Some of the pr_debug() statements had rather expensive function calls as part of the arguments, so this code was getting run unnecessarily even on non debug kernels - in some fast paths, too. Signed-off-by: Kent Overstreet <koverstreet@google.com>
Diffstat (limited to 'drivers/md/bcache/sysfs.c')
-rw-r--r--drivers/md/bcache/sysfs.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/md/bcache/sysfs.c b/drivers/md/bcache/sysfs.c
index 29228b8a6ffe..f5c2d8695230 100644
--- a/drivers/md/bcache/sysfs.c
+++ b/drivers/md/bcache/sysfs.c
@@ -10,6 +10,7 @@
#include "btree.h"
#include "request.h"
+#include <linux/blkdev.h>
#include <linux/sort.h>
static const char * const cache_replacement_policies[] = {