diff options
| author | Ingo Molnar <mingo@kernel.org> | 2016-07-08 11:51:28 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2016-07-08 11:51:28 +0200 |
| commit | 946e0f6ffcaa614012d646f4cf84efdd62628c8b (patch) | |
| tree | 37d31fd748f98ec4fb7897997a2745228bf0c2da /include/linux/blktrace_api.h | |
| parent | 67d7a982bab6702d84415ea889996fae72a7d3b2 (diff) | |
| parent | a99cde438de0c4c0cecc1d1af1a55a75b10bfdef (diff) | |
Merge tag 'v4.7-rc6' into x86/mm, to merge fixes before applying new changes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'include/linux/blktrace_api.h')
| -rw-r--r-- | include/linux/blktrace_api.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/linux/blktrace_api.h b/include/linux/blktrace_api.h index afc1343df3c7..0f3172b8b225 100644 --- a/include/linux/blktrace_api.h +++ b/include/linux/blktrace_api.h @@ -57,6 +57,14 @@ void __trace_note_message(struct blk_trace *, const char *fmt, ...); } while (0) #define BLK_TN_MAX_MSG 128 +static inline bool blk_trace_note_message_enabled(struct request_queue *q) +{ + struct blk_trace *bt = q->blk_trace; + if (likely(!bt)) + return false; + return bt->act_mask & BLK_TC_NOTIFY; +} + extern void blk_add_driver_data(struct request_queue *q, struct request *rq, void *data, size_t len); extern int blk_trace_setup(struct request_queue *q, char *name, dev_t dev, @@ -79,6 +87,7 @@ extern struct attribute_group blk_trace_attr_group; # define blk_trace_remove(q) (-ENOTTY) # define blk_add_trace_msg(q, fmt, ...) do { } while (0) # define blk_trace_remove_sysfs(dev) do { } while (0) +# define blk_trace_note_message_enabled(q) (false) static inline int blk_trace_init_sysfs(struct device *dev) { return 0; |