Merge tag 'for-6.3/dm-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm

Pull device mapper updates from Mike Snitzer:

 - Fix DM cache target to free background tracker work items, otherwise
   slab BUG will occur when kmem_cache_destroy() is called.

 - Improve 2 of DM's shrinker names to reflect their use.

 - Fix the DM flakey target to not corrupt the zero page. Fix dm-flakey
   on 32-bit hughmem systems by using bvec_kmap_local instead of
   page_address. Also, fix logic used when imposing the
   "corrupt_bio_byte" feature.

 - Stop using WQ_UNBOUND for DM verity target's verify_wq because it
   causes significant Android latencies on ARM64 (and doesn't show real
   benefit on other architectures).

 - Add negative check to catch simple case of a DM table referencing
   itself. More complex scenarios that use intermediate devices to
   self-reference still need to be avoided/handled in userspace.

 - Fix DM core's resize to only send one uevent instead of two. This
   fixes a race with udev, that if udev wins, will cause udev to miss
   uevents (which caused premature unmount attempts by systemd).

 - Add cond_resched() to workqueue functions in DM core, dn-thin and
   dm-cache so that their loops aren't the cause of unintended cpu
   scheduling fairness issues.

 - Fix all of DM's checkpatch errors and warnings (famous last words).
   Various other small cleanups.

* tag 'for-6.3/dm-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm: (62 commits)
  dm: remove unnecessary (void*) conversion in event_callback()
  dm ioctl: remove unnecessary check when using dm_get_mdptr()
  dm ioctl: assert _hash_lock is held in __hash_remove
  dm cache: add cond_resched() to various workqueue loops
  dm thin: add cond_resched() to various workqueue loops
  dm: add cond_resched() to dm_wq_requeue_work()
  dm: add cond_resched() to dm_wq_work()
  dm sysfs: make kobj_type structure constant
  dm: update targets using system workqueues to use a local workqueue
  dm: remove flush_scheduled_work() during local_exit()
  dm clone: prefer kvmalloc_array()
  dm: declare variables static when sensible
  dm: fix suspect indent whitespace
  dm ioctl: prefer strscpy() instead of strlcpy()
  dm: avoid void function return statements
  dm integrity: change macros min/max() -> min_t/max_t where appropriate
  dm: fix use of sizeof() macro
  dm: avoid 'do {} while(0)' loop in single statement macros
  dm log: avoid multiple line dereference
  dm log: avoid trailing semicolon in macro
  ...

1 files changed, 14 insertions, 14 deletions

diff --git a/drivers/md/dm-path-selector.h b/drivers/md/dm-path-selector.h
index 83cac2b04b66..3861b2d8b963 100644
--- a/drivers/md/dm-path-selector.h
+++ b/drivers/md/dm-path-selector.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * Copyright (C) 2003 Sistina Software.
  * Copyright (C) 2004 Red Hat, Inc. All rights reserved.
@@ -52,44 +53,43 @@ struct path_selector_type {
 	/*
 	 * Constructs a path selector object, takes custom arguments
 	 */
-	int (*create) (struct path_selector *ps, unsigned argc, char **argv);
-	void (*destroy) (struct path_selector *ps);
+	int (*create)(struct path_selector *ps, unsigned int argc, char **argv);
+	void (*destroy)(struct path_selector *ps);
 
 	/*
 	 * Add an opaque path object, along with some selector specific
 	 * path args (eg, path priority).
 	 */
-	int (*add_path) (struct path_selector *ps, struct dm_path *path,
-			 int argc, char **argv, char **error);
+	int (*add_path)(struct path_selector *ps, struct dm_path *path,
+			int argc, char **argv, char **error);
 
 	/*
 	 * Chooses a path for this io, if no paths are available then
 	 * NULL will be returned.
 	 */
-	struct dm_path *(*select_path) (struct path_selector *ps,
-					size_t nr_bytes);
+	struct dm_path *(*select_path)(struct path_selector *ps, size_t nr_bytes);
 
 	/*
 	 * Notify the selector that a path has failed.
 	 */
-	void (*fail_path) (struct path_selector *ps, struct dm_path *p);
+	void (*fail_path)(struct path_selector *ps, struct dm_path *p);
 
 	/*
 	 * Ask selector to reinstate a path.
 	 */
-	int (*reinstate_path) (struct path_selector *ps, struct dm_path *p);
+	int (*reinstate_path)(struct path_selector *ps, struct dm_path *p);
 
 	/*
 	 * Table content based on parameters added in ps_add_path_fn
 	 * or path selector status
 	 */
-	int (*status) (struct path_selector *ps, struct dm_path *path,
-		       status_type_t type, char *result, unsigned int maxlen);
+	int (*status)(struct path_selector *ps, struct dm_path *path,
+		      status_type_t type, char *result, unsigned int maxlen);
 
-	int (*start_io) (struct path_selector *ps, struct dm_path *path,
-			 size_t nr_bytes);
-	int (*end_io) (struct path_selector *ps, struct dm_path *path,
-		       size_t nr_bytes, u64 start_time);
+	int (*start_io)(struct path_selector *ps, struct dm_path *path,
+			size_t nr_bytes);
+	int (*end_io)(struct path_selector *ps, struct dm_path *path,
+		      size_t nr_bytes, u64 start_time);
 };
 
 /* Register a path selector */