[PATCH] aio: clean up debug code
Clean up code that was previously used for debug purpose. Remove aio_run,
aio_wakeups, iocb->ki_queued and iocb->ki_kicked. Also clean up unused
variable count in __aio_run_iocbs() and debug code in read_events().
Signed-off-by: Ken Chen <kenneth.w.chen@intel.com>
Cc: Benjamin LaHaise <bcrl@kvack.org>
Cc: Suparna Bhattacharya <suparna@in.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/fs/aio.c b/fs/aio.c
index 40517f3..674bb47 100644
--- a/fs/aio.c
+++ b/fs/aio.c
@@ -40,9 +40,6 @@
#define dprintk(x...) do { ; } while (0)
#endif
-static long aio_run = 0; /* for testing only */
-static long aio_wakeups = 0; /* for testing only */
-
/*------ sysctl variables----*/
atomic_t aio_nr = ATOMIC_INIT(0); /* current system wide number of aio requests */
unsigned aio_max_nr = 0x10000; /* system wide maximum number of aio requests */
@@ -617,7 +614,6 @@
if (list_empty(&iocb->ki_run_list)) {
list_add_tail(&iocb->ki_run_list,
&ctx->run_list);
- iocb->ki_queued++;
return 1;
}
return 0;
@@ -658,10 +654,8 @@
}
if (!(iocb->ki_retried & 0xff)) {
- pr_debug("%ld retry: %d of %d (kick %ld, Q %ld run %ld, wake %ld)\n",
- iocb->ki_retried,
- iocb->ki_nbytes - iocb->ki_left, iocb->ki_nbytes,
- iocb->ki_kicked, iocb->ki_queued, aio_run, aio_wakeups);
+ pr_debug("%ld retry: %d of %d\n", iocb->ki_retried,
+ iocb->ki_nbytes - iocb->ki_left, iocb->ki_nbytes);
}
if (!(retry = iocb->ki_retry)) {
@@ -768,7 +762,6 @@
static int __aio_run_iocbs(struct kioctx *ctx)
{
struct kiocb *iocb;
- int count = 0;
LIST_HEAD(run_list);
list_splice_init(&ctx->run_list, &run_list);
@@ -783,9 +776,7 @@
aio_run_iocb(iocb);
if (__aio_put_req(ctx, iocb)) /* drop extra ref */
put_ioctx(ctx);
- count++;
}
- aio_run++;
if (!list_empty(&ctx->run_list))
return 1;
return 0;
@@ -884,10 +875,8 @@
spin_lock_irqsave(&ctx->ctx_lock, flags);
run = __queue_kicked_iocb(iocb);
spin_unlock_irqrestore(&ctx->ctx_lock, flags);
- if (run) {
+ if (run)
aio_queue_work(ctx);
- aio_wakeups++;
- }
}
/*
@@ -907,7 +896,6 @@
return;
}
- iocb->ki_kicked++;
/* If its already kicked we shouldn't queue it again */
if (!kiocbTryKick(iocb)) {
queue_kicked_iocb(iocb);
@@ -1003,10 +991,8 @@
pr_debug("added to ring %p at [%lu]\n", iocb, tail);
- pr_debug("%ld retries: %d of %d (kicked %ld, Q %ld run %ld wake %ld)\n",
- iocb->ki_retried,
- iocb->ki_nbytes - iocb->ki_left, iocb->ki_nbytes,
- iocb->ki_kicked, iocb->ki_queued, aio_run, aio_wakeups);
+ pr_debug("%ld retries: %d of %d\n", iocb->ki_retried,
+ iocb->ki_nbytes - iocb->ki_left, iocb->ki_nbytes);
put_rq:
/* everything turned out well, dispose of the aiocb. */
ret = __aio_put_req(ctx, iocb);
@@ -1114,7 +1100,6 @@
int i = 0;
struct io_event ent;
struct aio_timeout to;
- int event_loop = 0; /* testing only */
int retry = 0;
/* needed to zero any padding within an entry (there shouldn't be
@@ -1181,7 +1166,6 @@
if (to.timed_out) /* Only check after read evt */
break;
schedule();
- event_loop++;
if (signal_pending(tsk)) {
ret = -EINTR;
break;
@@ -1209,9 +1193,6 @@
if (timeout)
clear_timeout(&to);
out:
- pr_debug("event loop executed %d times\n", event_loop);
- pr_debug("aio_run %ld\n", aio_run);
- pr_debug("aio_wakeups %ld\n", aio_wakeups);
return i ? i : ret;
}
@@ -1526,10 +1507,6 @@
init_waitqueue_func_entry(&req->ki_wait, aio_wake_function);
INIT_LIST_HEAD(&req->ki_wait.task_list);
req->ki_retried = 0;
- req->ki_kicked = 0;
- req->ki_queued = 0;
- aio_run = 0;
- aio_wakeups = 0;
ret = aio_setup_iocb(req);