aboutsummaryrefslogtreecommitdiffstats
path: root/block
diff options
context:
space:
mode:
Diffstat (limited to 'block')
-rw-r--r--block/blktrace.c14
1 files changed, 14 insertions, 0 deletions
diff --git a/block/blktrace.c b/block/blktrace.c
index b2cbb4e5d767..20e11f354f11 100644
--- a/block/blktrace.c
+++ b/block/blktrace.c
@@ -75,6 +75,20 @@ static void trace_note_time(struct blk_trace *bt)
75 local_irq_restore(flags); 75 local_irq_restore(flags);
76} 76}
77 77
78void __trace_note_message(struct blk_trace *bt, const char *fmt, ...)
79{
80 int n;
81 va_list args;
82 static char bt_msg_buf[BLK_TN_MAX_MSG];
83
84 va_start(args, fmt);
85 n = vscnprintf(bt_msg_buf, BLK_TN_MAX_MSG, fmt, args);
86 va_end(args);
87
88 trace_note(bt, 0, BLK_TN_MESSAGE, bt_msg_buf, n);
89}
90EXPORT_SYMBOL_GPL(__trace_note_message);
91
78static int act_log_check(struct blk_trace *bt, u32 what, sector_t sector, 92static int act_log_check(struct blk_trace *bt, u32 what, sector_t sector,
79 pid_t pid) 93 pid_t pid)
80{ 94{