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authorLinus Torvalds <torvalds@linux-foundation.org>2017-09-07 20:59:42 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2017-09-07 20:59:42 +0200
commita0725ab0c7536076d5477264420ef420ebb64501 (patch)
tree5c972d46c7f58f634ad74c6e4bc7a2bee24e5956 /drivers/block/xen-blkback
parentMerge tag 'for-linus-4.14b-rc1-tag' of git://git.kernel.org/pub/scm/linux/ker... (diff)
parentkernfs: checking for IS_ERR() instead of NULL (diff)
downloadlinux-a0725ab0c7536076d5477264420ef420ebb64501.tar.xz
linux-a0725ab0c7536076d5477264420ef420ebb64501.zip
Merge branch 'for-4.14/block' of git://git.kernel.dk/linux-block
Pull block layer updates from Jens Axboe: "This is the first pull request for 4.14, containing most of the code changes. It's a quiet series this round, which I think we needed after the churn of the last few series. This contains: - Fix for a registration race in loop, from Anton Volkov. - Overflow complaint fix from Arnd for DAC960. - Series of drbd changes from the usual suspects. - Conversion of the stec/skd driver to blk-mq. From Bart. - A few BFQ improvements/fixes from Paolo. - CFQ improvement from Ritesh, allowing idling for group idle. - A few fixes found by Dan's smatch, courtesy of Dan. - A warning fixup for a race between changing the IO scheduler and device remova. From David Jeffery. - A few nbd fixes from Josef. - Support for cgroup info in blktrace, from Shaohua. - Also from Shaohua, new features in the null_blk driver to allow it to actually hold data, among other things. - Various corner cases and error handling fixes from Weiping Zhang. - Improvements to the IO stats tracking for blk-mq from me. Can drastically improve performance for fast devices and/or big machines. - Series from Christoph removing bi_bdev as being needed for IO submission, in preparation for nvme multipathing code. - Series from Bart, including various cleanups and fixes for switch fall through case complaints" * 'for-4.14/block' of git://git.kernel.dk/linux-block: (162 commits) kernfs: checking for IS_ERR() instead of NULL drbd: remove BIOSET_NEED_RESCUER flag from drbd_{md_,}io_bio_set drbd: Fix allyesconfig build, fix recent commit drbd: switch from kmalloc() to kmalloc_array() drbd: abort drbd_start_resync if there is no connection drbd: move global variables to drbd namespace and make some static drbd: rename "usermode_helper" to "drbd_usermode_helper" drbd: fix race between handshake and admin disconnect/down drbd: fix potential deadlock when trying to detach during handshake drbd: A single dot should be put into a sequence. drbd: fix rmmod cleanup, remove _all_ debugfs entries drbd: Use setup_timer() instead of init_timer() to simplify the code. drbd: fix potential get_ldev/put_ldev refcount imbalance during attach drbd: new disk-option disable-write-same drbd: Fix resource role for newly created resources in events2 drbd: mark symbols static where possible drbd: Send P_NEG_ACK upon write error in protocol != C drbd: add explicit plugging when submitting batches drbd: change list_for_each_safe to while(list_first_entry_or_null) drbd: introduce drbd_recv_header_maybe_unplug ...
Diffstat (limited to 'drivers/block/xen-blkback')
-rw-r--r--drivers/block/xen-blkback/blkback.c9
-rw-r--r--drivers/block/xen-blkback/xenbus.c3
2 files changed, 7 insertions, 5 deletions
diff --git a/drivers/block/xen-blkback/blkback.c b/drivers/block/xen-blkback/blkback.c
index fe7cd58c43d0..987d665e82de 100644
--- a/drivers/block/xen-blkback/blkback.c
+++ b/drivers/block/xen-blkback/blkback.c
@@ -705,9 +705,9 @@ static unsigned int xen_blkbk_unmap_prepare(
GNTMAP_host_map, pages[i]->handle);
pages[i]->handle = BLKBACK_INVALID_HANDLE;
invcount++;
- }
+ }
- return invcount;
+ return invcount;
}
static void xen_blkbk_unmap_and_respond_callback(int result, struct gntab_unmap_queue_data *data)
@@ -1251,6 +1251,7 @@ static int dispatch_rw_block_io(struct xen_blkif_ring *ring,
break;
case BLKIF_OP_WRITE_BARRIER:
drain = true;
+ /* fall through */
case BLKIF_OP_FLUSH_DISKCACHE:
ring->st_f_req++;
operation = REQ_OP_WRITE;
@@ -1362,7 +1363,7 @@ static int dispatch_rw_block_io(struct xen_blkif_ring *ring,
goto fail_put_bio;
biolist[nbio++] = bio;
- bio->bi_bdev = preq.bdev;
+ bio_set_dev(bio, preq.bdev);
bio->bi_private = pending_req;
bio->bi_end_io = end_block_io_op;
bio->bi_iter.bi_sector = preq.sector_number;
@@ -1381,7 +1382,7 @@ static int dispatch_rw_block_io(struct xen_blkif_ring *ring,
goto fail_put_bio;
biolist[nbio++] = bio;
- bio->bi_bdev = preq.bdev;
+ bio_set_dev(bio, preq.bdev);
bio->bi_private = pending_req;
bio->bi_end_io = end_block_io_op;
bio_set_op_attrs(bio, operation, operation_flags);
diff --git a/drivers/block/xen-blkback/xenbus.c b/drivers/block/xen-blkback/xenbus.c
index 2adb8599be93..21c1be1eb226 100644
--- a/drivers/block/xen-blkback/xenbus.c
+++ b/drivers/block/xen-blkback/xenbus.c
@@ -816,7 +816,8 @@ static void frontend_changed(struct xenbus_device *dev,
xenbus_switch_state(dev, XenbusStateClosed);
if (xenbus_dev_is_online(dev))
break;
- /* fall through if not online */
+ /* fall through */
+ /* if not online */
case XenbusStateUnknown:
/* implies xen_blkif_disconnect() via xen_blkbk_remove() */
device_unregister(&dev->dev);