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Message-Id: <1313572963-3440-3-git-send-email-amwang@redhat.com>
Date: Wed, 17 Aug 2011 17:22:41 +0800
From: Amerigo Wang <amwang@...hat.com>
To: linux-kernel@...r.kernel.org
Cc: akpm@...ux-foundation.org, Greg Kroah-Hartman <gregkh@...e.de>,
WANG Cong <amwang@...hat.com>,
Paul Clements <Paul.Clements@...eleye.com>
Subject: [PATCH 3/5] nbd: replace printk KERN_ERR with dev_err()
From: WANG Cong <amwang@...hat.com>
Signed-off-by: WANG Cong <amwang@...hat.com>
---
drivers/block/nbd.c | 50 +++++++++++++++++++++++++-------------------------
1 files changed, 25 insertions(+), 25 deletions(-)
diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c
index da98360..1b8e09f 100644
--- a/drivers/block/nbd.c
+++ b/drivers/block/nbd.c
@@ -158,8 +158,9 @@ static int sock_xmit(struct nbd_device *lo, int send, void *buf, int size,
sigset_t blocked, oldset;
if (unlikely(!sock)) {
- printk(KERN_ERR "%s: Attempted %s on closed socket in sock_xmit\n",
- lo->disk->disk_name, (send ? "send" : "recv"));
+ dev_err(disk_to_dev(lo->disk),
+ "Attempted %s on closed socket in sock_xmit\n",
+ (send ? "send" : "recv"));
return -EINVAL;
}
@@ -250,8 +251,8 @@ static int nbd_send_req(struct nbd_device *lo, struct request *req)
result = sock_xmit(lo, 1, &request, sizeof(request),
(nbd_cmd(req) == NBD_CMD_WRITE) ? MSG_MORE : 0);
if (result <= 0) {
- printk(KERN_ERR "%s: Send control failed (result %d)\n",
- lo->disk->disk_name, result);
+ dev_err(disk_to_dev(lo->disk),
+ "Send control failed (result %d)\n", result);
goto error_out;
}
@@ -270,8 +271,9 @@ static int nbd_send_req(struct nbd_device *lo, struct request *req)
lo->disk->disk_name, req, bvec->bv_len);
result = sock_send_bvec(lo, bvec, flags);
if (result <= 0) {
- printk(KERN_ERR "%s: Send data failed (result %d)\n",
- lo->disk->disk_name, result);
+ dev_err(disk_to_dev(lo->disk),
+ "Send data failed (result %d)\n",
+ result);
goto error_out;
}
}
@@ -328,14 +330,13 @@ static struct request *nbd_read_stat(struct nbd_device *lo)
reply.magic = 0;
result = sock_xmit(lo, 0, &reply, sizeof(reply), MSG_WAITALL);
if (result <= 0) {
- printk(KERN_ERR "%s: Receive control failed (result %d)\n",
- lo->disk->disk_name, result);
+ dev_err(disk_to_dev(lo->disk),
+ "Receive control failed (result %d)\n", result);
goto harderror;
}
if (ntohl(reply.magic) != NBD_REPLY_MAGIC) {
- printk(KERN_ERR "%s: Wrong magic (0x%lx)\n",
- lo->disk->disk_name,
+ dev_err(disk_to_dev(lo->disk), "Wrong magic (0x%lx)\n",
(unsigned long)ntohl(reply.magic));
result = -EPROTO;
goto harderror;
@@ -347,15 +348,15 @@ static struct request *nbd_read_stat(struct nbd_device *lo)
if (result != -ENOENT)
goto harderror;
- printk(KERN_ERR "%s: Unexpected reply (%p)\n",
- lo->disk->disk_name, reply.handle);
+ dev_err(disk_to_dev(lo->disk), "Unexpected reply (%p)\n",
+ reply.handle);
result = -EBADR;
goto harderror;
}
if (ntohl(reply.error)) {
- printk(KERN_ERR "%s: Other side returned error (%d)\n",
- lo->disk->disk_name, ntohl(reply.error));
+ dev_err(disk_to_dev(lo->disk), "Other side returned error (%d)\n",
+ ntohl(reply.error));
req->errors++;
return req;
}
@@ -369,8 +370,8 @@ static struct request *nbd_read_stat(struct nbd_device *lo)
rq_for_each_segment(bvec, req, iter) {
result = sock_recv_bvec(lo, bvec);
if (result <= 0) {
- printk(KERN_ERR "%s: Receive data failed (result %d)\n",
- lo->disk->disk_name, result);
+ dev_err(disk_to_dev(lo->disk), "Receive data failed (result %d)\n",
+ result);
req->errors++;
return req;
}
@@ -408,7 +409,7 @@ static int nbd_do_it(struct nbd_device *lo)
lo->pid = task_pid_nr(current);
ret = device_create_file(disk_to_dev(lo->disk), &pid_attr);
if (ret) {
- printk(KERN_ERR "nbd: device_create_file failed!");
+ dev_err(disk_to_dev(lo->disk), "device_create_file failed!\n");
lo->pid = 0;
return ret;
}
@@ -457,8 +458,8 @@ static void nbd_handle_req(struct nbd_device *lo, struct request *req)
if (rq_data_dir(req) == WRITE) {
nbd_cmd(req) = NBD_CMD_WRITE;
if (lo->flags & NBD_READ_ONLY) {
- printk(KERN_ERR "%s: Write on read-only\n",
- lo->disk->disk_name);
+ dev_err(disk_to_dev(lo->disk),
+ "Write on read-only\n");
goto error_out;
}
}
@@ -468,16 +469,15 @@ static void nbd_handle_req(struct nbd_device *lo, struct request *req)
mutex_lock(&lo->tx_lock);
if (unlikely(!lo->sock)) {
mutex_unlock(&lo->tx_lock);
- printk(KERN_ERR "%s: Attempted send on closed socket\n",
- lo->disk->disk_name);
+ dev_err(disk_to_dev(lo->disk),
+ "Attempted send on closed socket\n");
goto error_out;
}
lo->active_req = req;
if (nbd_send_req(lo, req) != 0) {
- printk(KERN_ERR "%s: Request send failed\n",
- lo->disk->disk_name);
+ dev_err(disk_to_dev(lo->disk), "Request send failed\n");
req->errors++;
nbd_end_request(req);
} else {
@@ -549,8 +549,8 @@ static void do_nbd_request(struct request_queue *q)
BUG_ON(lo->magic != LO_MAGIC);
if (unlikely(!lo->sock)) {
- printk(KERN_ERR "%s: Attempted send on closed socket\n",
- lo->disk->disk_name);
+ dev_err(disk_to_dev(lo->disk),
+ "Attempted send on closed socket\n");
req->errors++;
nbd_end_request(req);
spin_lock_irq(q->queue_lock);
--
1.7.4.4
--
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