Merge branch 'lpc32xx/drivers' into next/drivers

* lpc32xx/drivers: (566 commits)
  ARM: LPC32xx: ADC support for mach-lpc32xx

Includes an update to Linux 3.3-rc4

Signed-off-by: Arnd Bergmann <arnd@arndb.de>

5 files changed, 39 insertions, 25 deletions

diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c
index 510fb10ec45a..9baf11e86362 100644
--- a/drivers/block/floppy.c
+++ b/drivers/block/floppy.c
@@ -4368,8 +4368,14 @@ out_unreg_blkdev:
 out_put_disk:
 	while (dr--) {
 		del_timer_sync(&motor_off_timer[dr]);
-		if (disks[dr]->queue)
+		if (disks[dr]->queue) {
 			blk_cleanup_queue(disks[dr]->queue);
+			/*
+			 * put_disk() is not paired with add_disk() and
+			 * will put queue reference one extra time. fix it.
+			 */
+			disks[dr]->queue = NULL;
+		}
 		put_disk(disks[dr]);
 	}
 	return err;
@@ -4579,6 +4585,15 @@ static void __exit floppy_module_exit(void)
 			platform_device_unregister(&floppy_device[drive]);
 		}
 		blk_cleanup_queue(disks[drive]->queue);
+
+		/*
+		 * These disks have not called add_disk().  Don't put down
+		 * queue reference in put_disk().
+		 */
+		if (!(allowed_drive_mask & (1 << drive)) ||
+		    fdc_state[FDC(drive)].version == FDC_NONE)
+			disks[drive]->queue = NULL;
+
 		put_disk(disks[drive]);
 	}
 
diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index f00257782fcc..cd504353b278 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -356,14 +356,14 @@ lo_direct_splice_actor(struct pipe_inode_info *pipe, struct splice_desc *sd)
 	return __splice_from_pipe(pipe, sd, lo_splice_actor);
 }
 
-static int
+static ssize_t
 do_lo_receive(struct loop_device *lo,
 	      struct bio_vec *bvec, int bsize, loff_t pos)
 {
 	struct lo_read_data cookie;
 	struct splice_desc sd;
 	struct file *file;
-	long retval;
+	ssize_t retval;
 
 	cookie.lo = lo;
 	cookie.page = bvec->bv_page;
@@ -379,26 +379,28 @@ do_lo_receive(struct loop_device *lo,
 	file = lo->lo_backing_file;
 	retval = splice_direct_to_actor(file, &sd, lo_direct_splice_actor);
 
-	if (retval < 0)
-		return retval;
-	if (retval != bvec->bv_len)
-		return -EIO;
-	return 0;
+	return retval;
 }
 
 static int
 lo_receive(struct loop_device *lo, struct bio *bio, int bsize, loff_t pos)
 {
 	struct bio_vec *bvec;
-	int i, ret = 0;
+	ssize_t s;
+	int i;
 
 	bio_for_each_segment(bvec, bio, i) {
-		ret = do_lo_receive(lo, bvec, bsize, pos);
-		if (ret < 0)
+		s = do_lo_receive(lo, bvec, bsize, pos);
+		if (s < 0)
+			return s;
+
+		if (s != bvec->bv_len) {
+			zero_fill_bio(bio);
 			break;
+		}
 		pos += bvec->bv_len;
 	}
-	return ret;
+	return 0;
 }
 
 static int do_bio_filebacked(struct loop_device *lo, struct bio *bio)
diff --git a/drivers/block/mtip32xx/mtip32xx.c b/drivers/block/mtip32xx/mtip32xx.c
index b74eab70c3d0..8eb81c96608f 100644
--- a/drivers/block/mtip32xx/mtip32xx.c
+++ b/drivers/block/mtip32xx/mtip32xx.c
@@ -2068,8 +2068,6 @@ static int mtip_hw_ioctl(struct driver_data *dd, unsigned int cmd,
  *	     when the read completes.
  * @data     Callback data passed to the callback function
  *	     when the read completes.
- * @barrier  If non-zero, this command must be completed before
- *	     issuing any other commands.
  * @dir      Direction (read or write)
  *
  * return value
@@ -2077,7 +2075,7 @@ static int mtip_hw_ioctl(struct driver_data *dd, unsigned int cmd,
  */
 static void mtip_hw_submit_io(struct driver_data *dd, sector_t start,
 			      int nsect, int nents, int tag, void *callback,
-			      void *data, int barrier, int dir)
+			      void *data, int dir)
 {
 	struct host_to_dev_fis	*fis;
 	struct mtip_port *port = dd->port;
@@ -2108,8 +2106,6 @@ static void mtip_hw_submit_io(struct driver_data *dd, sector_t start,
 	*((unsigned int *) &fis->lba_low) = (start & 0xFFFFFF);
 	*((unsigned int *) &fis->lba_low_ex) = ((start >> 24) & 0xFFFFFF);
 	fis->device	 = 1 << 6;
-	if (barrier)
-		fis->device |= FUA_BIT;
 	fis->features    = nsect & 0xFF;
 	fis->features_ex = (nsect >> 8) & 0xFF;
 	fis->sect_count  = ((tag << 3) | (tag >> 5));
@@ -3087,7 +3083,6 @@ static void mtip_make_request(struct request_queue *queue, struct bio *bio)
 				tag,
 				bio_endio,
 				bio,
-				bio->bi_rw & REQ_FUA,
 				bio_data_dir(bio));
 	} else
 		bio_io_error(bio);
@@ -3187,6 +3182,10 @@ skip_create_disk:
 	blk_queue_max_segments(dd->queue, MTIP_MAX_SG);
 	blk_queue_physical_block_size(dd->queue, 4096);
 	blk_queue_io_min(dd->queue, 4096);
+	/*
+	 * write back cache is not supported in the device. FUA depends on
+	 * write back cache support, hence setting flush support to zero.
+	 */
 	blk_queue_flush(dd->queue, 0);
 
 	/* Set the capacity of the device in 512 byte sectors. */
diff --git a/drivers/block/mtip32xx/mtip32xx.h b/drivers/block/mtip32xx/mtip32xx.h
index 723d7c4946dc..e0554a8f2233 100644
--- a/drivers/block/mtip32xx/mtip32xx.h
+++ b/drivers/block/mtip32xx/mtip32xx.h
@@ -104,9 +104,6 @@
 /* BAR number used to access the HBA registers. */
 #define MTIP_ABAR		5
 
-/* Forced Unit Access Bit */
-#define FUA_BIT			0x80
-
 #ifdef DEBUG
  #define dbg_printk(format, arg...)	\
 	printk(pr_fmt(format), ##arg);
@@ -415,8 +412,6 @@ struct driver_data {
 
 	atomic_t resumeflag; /* Atomic variable to track suspend/resume */
 
-	atomic_t eh_active; /* Flag for error handling tracking */
-
 	struct task_struct *mtip_svc_handler; /* task_struct of svc thd */
 };
 
diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c
index 3fd31dec8c9c..a6278e7e61a0 100644
--- a/drivers/block/rbd.c
+++ b/drivers/block/rbd.c
@@ -380,6 +380,7 @@ static int rbd_get_client(struct rbd_device *rbd_dev, const char *mon_addr,
 	rbdc = __rbd_client_find(opt);
 	if (rbdc) {
 		ceph_destroy_options(opt);
+		kfree(rbd_opts);
 
 		/* using an existing client */
 		kref_get(&rbdc->kref);
@@ -406,15 +407,15 @@ done_err:
 
 /*
  * Destroy ceph client
+ *
+ * Caller must hold node_lock.
  */
 static void rbd_client_release(struct kref *kref)
 {
 	struct rbd_client *rbdc = container_of(kref, struct rbd_client, kref);
 
 	dout("rbd_release_client %p\n", rbdc);
-	spin_lock(&node_lock);
 	list_del(&rbdc->node);
-	spin_unlock(&node_lock);
 
 	ceph_destroy_client(rbdc->client);
 	kfree(rbdc->rbd_opts);
@@ -427,7 +428,9 @@ static void rbd_client_release(struct kref *kref)
  */
 static void rbd_put_client(struct rbd_device *rbd_dev)
 {
+	spin_lock(&node_lock);
 	kref_put(&rbd_dev->rbd_client->kref, rbd_client_release);
+	spin_unlock(&node_lock);
 	rbd_dev->rbd_client = NULL;
 	rbd_dev->client = NULL;
 }