tracing/blktrace: fix up checkpatch reported problems in ftrace plugin patch
Also make sure sparse (make C=2 block/blktrace.o) is happy too.
Reported-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/block/blktrace.c b/block/blktrace.c
index 630f167..1b2267c 100644
--- a/block/blktrace.c
+++ b/block/blktrace.c
@@ -37,7 +37,7 @@
static struct tracer_opt blk_tracer_opts[] = {
/* Default disable the minimalistic output */
- { TRACER_OPT(blk_classic, TRACE_BLK_OPT_CLASSIC ) },
+ { TRACER_OPT(blk_classic, TRACE_BLK_OPT_CLASSIC) },
{ }
};
@@ -169,7 +169,8 @@
pid_t pid;
int cpu, pc = 0;
- if (unlikely(bt->trace_state != Blktrace_running || !blk_tracer_enabled))
+ if (unlikely(bt->trace_state != Blktrace_running ||
+ !blk_tracer_enabled))
return;
what |= ddir_act[rw & WRITE];
@@ -192,7 +193,7 @@
sizeof(*t) + pdu_len, &flags);
if (!event)
return;
-
+
ent = ring_buffer_event_data(event);
t = (struct blk_io_trace *)ent;
pc = preempt_count();
@@ -234,7 +235,7 @@
if (blk_tr) {
ring_buffer_unlock_commit(blk_tr->buffer, event, flags);
if (pid != 0 &&
- (blk_tracer_flags.val & TRACE_BLK_OPT_CLASSIC) == 0 &&
+ !(blk_tracer_flags.val & TRACE_BLK_OPT_CLASSIC) &&
(trace_flags & TRACE_ITER_STACKTRACE) != 0)
__trace_stack(blk_tr, NULL, flags, 5, pc);
trace_wake_up();
@@ -955,19 +956,27 @@
static void fill_rwbs(char *rwbs, const struct blk_io_trace *t)
{
- int i = 0;
+ int i = 0;
- if (t->action & BLK_TC_DISCARD) rwbs[i++] = 'D';
- else if (t->action & BLK_TC_WRITE) rwbs[i++] = 'W';
- else if (t->bytes) rwbs[i++] = 'R';
- else rwbs[i++] = 'N';
+ if (t->action & BLK_TC_DISCARD)
+ rwbs[i++] = 'D';
+ else if (t->action & BLK_TC_WRITE)
+ rwbs[i++] = 'W';
+ else if (t->bytes)
+ rwbs[i++] = 'R';
+ else
+ rwbs[i++] = 'N';
- if (t->action & BLK_TC_AHEAD) rwbs[i++] = 'A';
- if (t->action & BLK_TC_BARRIER) rwbs[i++] = 'B';
- if (t->action & BLK_TC_SYNC) rwbs[i++] = 'S';
- if (t->action & BLK_TC_META) rwbs[i++] = 'M';
+ if (t->action & BLK_TC_AHEAD)
+ rwbs[i++] = 'A';
+ if (t->action & BLK_TC_BARRIER)
+ rwbs[i++] = 'B';
+ if (t->action & BLK_TC_SYNC)
+ rwbs[i++] = 'S';
+ if (t->action & BLK_TC_META)
+ rwbs[i++] = 'M';
- rwbs[i] = '\0';
+ rwbs[i] = '\0';
}
static inline
@@ -1049,7 +1058,8 @@
return trace_seq_printf(s, "[%s]\n", cmd);
}
-static int blk_log_with_error(struct trace_seq *s, const struct trace_entry *ent)
+static int blk_log_with_error(struct trace_seq *s,
+ const struct trace_entry *ent)
{
if (t_sec(ent))
return trace_seq_printf(s, "%llu + %u [%d]\n", t_sector(ent),
diff --git a/fs/partitions/check.c b/fs/partitions/check.c
index 01714ef..8a17f7e 100644
--- a/fs/partitions/check.c
+++ b/fs/partitions/check.c
@@ -19,6 +19,7 @@
#include <linux/kmod.h>
#include <linux/ctype.h>
#include <linux/genhd.h>
+#include <linux/blktrace_api.h>
#include "check.h"
@@ -268,10 +269,6 @@
}
#endif
-#ifdef CONFIG_BLK_DEV_IO_TRACE
-extern struct attribute_group blk_trace_attr_group;
-#endif
-
static DEVICE_ATTR(partition, S_IRUGO, part_partition_show, NULL);
static DEVICE_ATTR(start, S_IRUGO, part_start_show, NULL);
static DEVICE_ATTR(size, S_IRUGO, part_size_show, NULL);
diff --git a/include/linux/blktrace_api.h b/include/linux/blktrace_api.h
index 1dba349..59b4b2e 100644
--- a/include/linux/blktrace_api.h
+++ b/include/linux/blktrace_api.h
@@ -142,6 +142,9 @@
#ifdef __KERNEL__
#if defined(CONFIG_BLK_DEV_IO_TRACE)
+
+#include <linux/sysfs.h>
+
struct blk_trace {
int trace_state;
struct rchan *rchan;
@@ -192,6 +195,8 @@
extern int blk_trace_startstop(struct request_queue *q, int start);
extern int blk_trace_remove(struct request_queue *q);
+extern struct attribute_group blk_trace_attr_group;
+
#else /* !CONFIG_BLK_DEV_IO_TRACE */
#define blk_trace_ioctl(bdev, cmd, arg) (-ENOTTY)
#define blk_trace_shutdown(q) do { } while (0)
