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-rw-r--r--block/blktrace.c35
1 files changed, 16 insertions, 19 deletions
diff --git a/block/blktrace.c b/block/blktrace.c
index 562ca7cbf858..74e02c04b2da 100644
--- a/block/blktrace.c
+++ b/block/blktrace.c
@@ -31,26 +31,24 @@ static unsigned int blktrace_seq __read_mostly = 1;
31/* 31/*
32 * Send out a notify message. 32 * Send out a notify message.
33 */ 33 */
34static inline unsigned int trace_note(struct blk_trace *bt, 34static void trace_note(struct blk_trace *bt, pid_t pid, int action,
35 pid_t pid, int action, 35 const void *data, size_t len)
36 const void *data, size_t len)
37{ 36{
38 struct blk_io_trace *t; 37 struct blk_io_trace *t;
39 int cpu = smp_processor_id();
40 38
41 t = relay_reserve(bt->rchan, sizeof(*t) + len); 39 t = relay_reserve(bt->rchan, sizeof(*t) + len);
42 if (t == NULL) 40 if (t) {
43 return 0; 41 const int cpu = smp_processor_id();
44 42
45 t->magic = BLK_IO_TRACE_MAGIC | BLK_IO_TRACE_VERSION; 43 t->magic = BLK_IO_TRACE_MAGIC | BLK_IO_TRACE_VERSION;
46 t->time = sched_clock() - per_cpu(blk_trace_cpu_offset, cpu); 44 t->time = sched_clock() - per_cpu(blk_trace_cpu_offset, cpu);
47 t->device = bt->dev; 45 t->device = bt->dev;
48 t->action = action; 46 t->action = action;
49 t->pid = pid; 47 t->pid = pid;
50 t->cpu = cpu; 48 t->cpu = cpu;
51 t->pdu_len = len; 49 t->pdu_len = len;
52 memcpy((void *) t + sizeof(*t), data, len); 50 memcpy((void *) t + sizeof(*t), data, len);
53 return blktrace_seq; 51 }
54} 52}
55 53
56/* 54/*
@@ -59,9 +57,8 @@ static inline unsigned int trace_note(struct blk_trace *bt,
59 */ 57 */
60static void trace_note_tsk(struct blk_trace *bt, struct task_struct *tsk) 58static void trace_note_tsk(struct blk_trace *bt, struct task_struct *tsk)
61{ 59{
62 tsk->btrace_seq = trace_note(bt, tsk->pid, 60 tsk->btrace_seq = blktrace_seq;
63 BLK_TN_PROCESS, 61 trace_note(bt, tsk->pid, BLK_TN_PROCESS, tsk->comm, sizeof(tsk->comm));
64 tsk->comm, sizeof(tsk->comm));
65} 62}
66 63
67static void trace_note_time(struct blk_trace *bt) 64static void trace_note_time(struct blk_trace *bt)