btrfs: use correct type for workqueue flags

Through all the local wrappers to alloc_workqueue, __alloc_workqueue_key
takes an unsigned int.

Signed-off-by: David Sterba <dsterba@suse.cz>
diff --git a/fs/btrfs/async-thread.c b/fs/btrfs/async-thread.c
index 4dabeb8..df9932b 100644
--- a/fs/btrfs/async-thread.c
+++ b/fs/btrfs/async-thread.c
@@ -87,7 +87,7 @@
 BTRFS_WORK_HELPER(scrubnc_helper);
 
 static struct __btrfs_workqueue *
-__btrfs_alloc_workqueue(const char *name, int flags, int max_active,
+__btrfs_alloc_workqueue(const char *name, unsigned int flags, int max_active,
 			 int thresh)
 {
 	struct __btrfs_workqueue *ret = kzalloc(sizeof(*ret), GFP_NOFS);
@@ -132,7 +132,7 @@
 __btrfs_destroy_workqueue(struct __btrfs_workqueue *wq);
 
 struct btrfs_workqueue *btrfs_alloc_workqueue(const char *name,
-					      int flags,
+					      unsigned int flags,
 					      int max_active,
 					      int thresh)
 {
diff --git a/fs/btrfs/async-thread.h b/fs/btrfs/async-thread.h
index e386c29..ec2ee47 100644
--- a/fs/btrfs/async-thread.h
+++ b/fs/btrfs/async-thread.h
@@ -66,7 +66,7 @@
 BTRFS_WORK_HELPER_PROTO(scrubnc_helper);
 
 struct btrfs_workqueue *btrfs_alloc_workqueue(const char *name,
-					      int flags,
+					      unsigned int flags,
 					      int max_active,
 					      int thresh);
 void btrfs_init_work(struct btrfs_work *work, btrfs_work_func_t helper,
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index c7546d6..29cb50b 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -2227,7 +2227,7 @@
 		struct btrfs_fs_devices *fs_devices)
 {
 	int max_active = fs_info->thread_pool_size;
-	int flags = WQ_MEM_RECLAIM | WQ_FREEZABLE | WQ_UNBOUND;
+	unsigned int flags = WQ_MEM_RECLAIM | WQ_FREEZABLE | WQ_UNBOUND;
 
 	fs_info->workers =
 		btrfs_alloc_workqueue("worker", flags | WQ_HIGHPRI,
diff --git a/fs/btrfs/scrub.c b/fs/btrfs/scrub.c
index db21f17..4af5f49 100644
--- a/fs/btrfs/scrub.c
+++ b/fs/btrfs/scrub.c
@@ -3561,7 +3561,7 @@
 						int is_dev_replace)
 {
 	int ret = 0;
-	int flags = WQ_FREEZABLE | WQ_UNBOUND;
+	unsigned int flags = WQ_FREEZABLE | WQ_UNBOUND;
 	int max_active = fs_info->thread_pool_size;
 
 	if (fs_info->scrub_workers_refcnt == 0) {