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authorLinus Torvalds <torvalds@woody.osdl.org>2006-12-04 19:38:30 -0800
committerLinus Torvalds <torvalds@woody.osdl.org>2006-12-04 19:38:30 -0800
commit2d941e99dfa2f58f4cf294943274a4f8e264aab7 (patch)
treeb69e97f05d2fb0fbf1068c5a22f0c8420f7a198e
parent651857a1ecaf97a8ad9d324dd2a61675c53e541e (diff)
parenta863055b1066be1b8e1107f71be01daeed6bde31 (diff)
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Merge branch 'for-linus' of git://brick.kernel.dk/data/git/linux-2.6-block
* 'for-linus' of git://brick.kernel.dk/data/git/linux-2.6-block: [PATCH] blktrace: don't return blktrace_seq from trace_note() [PATCH] blktrace: uninline trace_note()
-rw-r--r--block/blktrace.c35
1 files changed, 16 insertions, 19 deletions
diff --git a/block/blktrace.c b/block/blktrace.c
index 562ca7cbf85..74e02c04b2d 100644
--- a/block/blktrace.c
+++ b/block/blktrace.c
@@ -31,26 +31,24 @@ static unsigned int blktrace_seq __read_mostly = 1;
/*
* Send out a notify message.
*/
-static inline unsigned int trace_note(struct blk_trace *bt,
- pid_t pid, int action,
- const void *data, size_t len)
+static void trace_note(struct blk_trace *bt, pid_t pid, int action,
+ const void *data, size_t len)
{
struct blk_io_trace *t;
- int cpu = smp_processor_id();
t = relay_reserve(bt->rchan, sizeof(*t) + len);
- if (t == NULL)
- return 0;
-
- t->magic = BLK_IO_TRACE_MAGIC | BLK_IO_TRACE_VERSION;
- t->time = sched_clock() - per_cpu(blk_trace_cpu_offset, cpu);
- t->device = bt->dev;
- t->action = action;
- t->pid = pid;
- t->cpu = cpu;
- t->pdu_len = len;
- memcpy((void *) t + sizeof(*t), data, len);
- return blktrace_seq;
+ if (t) {
+ const int cpu = smp_processor_id();
+
+ t->magic = BLK_IO_TRACE_MAGIC | BLK_IO_TRACE_VERSION;
+ t->time = sched_clock() - per_cpu(blk_trace_cpu_offset, cpu);
+ t->device = bt->dev;
+ t->action = action;
+ t->pid = pid;
+ t->cpu = cpu;
+ t->pdu_len = len;
+ memcpy((void *) t + sizeof(*t), data, len);
+ }
}
/*
@@ -59,9 +57,8 @@ static inline unsigned int trace_note(struct blk_trace *bt,
*/
static void trace_note_tsk(struct blk_trace *bt, struct task_struct *tsk)
{
- tsk->btrace_seq = trace_note(bt, tsk->pid,
- BLK_TN_PROCESS,
- tsk->comm, sizeof(tsk->comm));
+ tsk->btrace_seq = blktrace_seq;
+ trace_note(bt, tsk->pid, BLK_TN_PROCESS, tsk->comm, sizeof(tsk->comm));
}
static void trace_note_time(struct blk_trace *bt)