1 files changed, 13 insertions, 11 deletions

diff --git a/kernel/trace/blktrace.c b/kernel/trace/blktrace.c
index 82499a5bdcb7..bc251ed66724 100644
--- a/kernel/trace/blktrace.c
+++ b/kernel/trace/blktrace.c
@@ -23,7 +23,6 @@
 #include <linux/mutex.h>
 #include <linux/slab.h>
 #include <linux/debugfs.h>
-#include <linux/smp_lock.h>
 #include <linux/time.h>
 #include <linux/uaccess.h>
 
@@ -326,6 +325,7 @@ static const struct file_operations blk_dropped_fops = {
 	.owner =	THIS_MODULE,
 	.open =		blk_dropped_open,
 	.read =		blk_dropped_read,
+	.llseek =	default_llseek,
 };
 
 static int blk_msg_open(struct inode *inode, struct file *filp)
@@ -365,6 +365,7 @@ static const struct file_operations blk_msg_fops = {
 	.owner =	THIS_MODULE,
 	.open =		blk_msg_open,
 	.write =	blk_msg_write,
+	.llseek =	noop_llseek,
 };
 
 /*
@@ -639,7 +640,6 @@ int blk_trace_ioctl(struct block_device *bdev, unsigned cmd, char __user *arg)
 	if (!q)
 		return -ENXIO;
 
-	lock_kernel();
 	mutex_lock(&bdev->bd_mutex);
 
 	switch (cmd) {
@@ -667,7 +667,6 @@ int blk_trace_ioctl(struct block_device *bdev, unsigned cmd, char __user *arg)
 	}
 
 	mutex_unlock(&bdev->bd_mutex);
-	unlock_kernel();
 	return ret;
 }
 
@@ -710,6 +709,9 @@ static void blk_add_trace_rq(struct request_queue *q, struct request *rq,
 	if (rq->cmd_flags & REQ_DISCARD)
 		rw |= REQ_DISCARD;
 
+	if (rq->cmd_flags & REQ_SECURE)
+		rw |= REQ_SECURE;
+
 	if (rq->cmd_type == REQ_TYPE_BLOCK_PC) {
 		what |= BLK_TC_ACT(BLK_TC_PC);
 		__blk_add_trace(bt, 0, blk_rq_bytes(rq), rw,
@@ -1649,10 +1651,9 @@ static ssize_t sysfs_blk_trace_attr_show(struct device *dev,
 	struct block_device *bdev;
 	ssize_t ret = -ENXIO;
 
-	lock_kernel();
 	bdev = bdget(part_devt(p));
 	if (bdev == NULL)
-		goto out_unlock_kernel;
+		goto out;
 
 	q = blk_trace_get_queue(bdev);
 	if (q == NULL)
@@ -1680,8 +1681,7 @@ out_unlock_bdev:
 	mutex_unlock(&bdev->bd_mutex);
 out_bdput:
 	bdput(bdev);
-out_unlock_kernel:
-	unlock_kernel();
+out:
 	return ret;
 }
 
@@ -1711,11 +1711,10 @@ static ssize_t sysfs_blk_trace_attr_store(struct device *dev,
 
 	ret = -ENXIO;
 
-	lock_kernel();
 	p = dev_to_part(dev);
 	bdev = bdget(part_devt(p));
 	if (bdev == NULL)
-		goto out_unlock_kernel;
+		goto out;
 
 	q = blk_trace_get_queue(bdev);
 	if (q == NULL)
@@ -1750,8 +1749,6 @@ out_unlock_bdev:
 	mutex_unlock(&bdev->bd_mutex);
 out_bdput:
 	bdput(bdev);
-out_unlock_kernel:
-	unlock_kernel();
 out:
 	return ret ? ret : count;
 }
@@ -1816,6 +1813,8 @@ void blk_fill_rwbs(char *rwbs, u32 rw, int bytes)
 		rwbs[i++] = 'S';
 	if (rw & REQ_META)
 		rwbs[i++] = 'M';
+	if (rw & REQ_SECURE)
+		rwbs[i++] = 'E';
 
 	rwbs[i] = '\0';
 }
@@ -1828,6 +1827,9 @@ void blk_fill_rwbs_rq(char *rwbs, struct request *rq)
 	if (rq->cmd_flags & REQ_DISCARD)
 		rw |= REQ_DISCARD;
 
+	if (rq->cmd_flags & REQ_SECURE)
+		rw |= REQ_SECURE;
+
 	bytes = blk_rq_bytes(rq);
 
 	blk_fill_rwbs(rwbs, rw, bytes);