Merge tag 'mm-nonmm-stable-2024-11-24-02-05' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull non-MM updates from Andrew Morton:

 - The series "resource: A couple of cleanups" from Andy Shevchenko
   performs some cleanups in the resource management code

 - The series "Improve the copy of task comm" from Yafang Shao addresses
   possible race-induced overflows in the management of
   task_struct.comm[]

 - The series "Remove unnecessary header includes from
   {tools/}lib/list_sort.c" from Kuan-Wei Chiu adds some cleanups and a
   small fix to the list_sort library code and to its selftest

 - The series "Enhance min heap API with non-inline functions and
   optimizations" also from Kuan-Wei Chiu optimizes and cleans up the
   min_heap library code

 - The series "nilfs2: Finish folio conversion" from Ryusuke Konishi
   finishes off nilfs2's folioification

 - The series "add detect count for hung tasks" from Lance Yang adds
   more userspace visibility into the hung-task detector's activity

 - Apart from that, singelton patches in many places - please see the
   individual changelogs for details

* tag 'mm-nonmm-stable-2024-11-24-02-05' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (71 commits)
  gdb: lx-symbols: do not error out on monolithic build
  kernel/reboot: replace sprintf() with sysfs_emit()
  lib: util_macros_kunit: add kunit test for util_macros.h
  util_macros.h: fix/rework find_closest() macros
  Improve consistency of '#error' directive messages
  ocfs2: fix uninitialized value in ocfs2_file_read_iter()
  hung_task: add docs for hung_task_detect_count
  hung_task: add detect count for hung tasks
  dma-buf: use atomic64_inc_return() in dma_buf_getfile()
  fs/proc/kcore.c: fix coccinelle reported ERROR instances
  resource: avoid unnecessary resource tree walking in __region_intersects()
  ocfs2: remove unused errmsg function and table
  ocfs2: cluster: fix a typo
  lib/scatterlist: use sg_phys() helper
  checkpatch: always parse orig_commit in fixes tag
  nilfs2: convert metadata aops from writepage to writepages
  nilfs2: convert nilfs_recovery_copy_block() to take a folio
  nilfs2: convert nilfs_page_count_clean_buffers() to take a folio
  nilfs2: remove nilfs_writepage
  nilfs2: convert checkpoint file to be folio-based
  ...

3 files changed, 10 insertions, 35 deletions

diff --git a/fs/bcachefs/Kconfig b/fs/bcachefs/Kconfig
index 5bac803ea367..ab6c95b895b3 100644
--- a/fs/bcachefs/Kconfig
+++ b/fs/bcachefs/Kconfig
@@ -24,6 +24,7 @@ config BCACHEFS_FS
 	select XXHASH
 	select SRCU
 	select SYMBOLIC_ERRNAME
+	select MIN_HEAP
 	help
 	The bcachefs filesystem - a modern, copy on write filesystem, with
 	support for multiple devices, compression, checksumming, etc.
diff --git a/fs/bcachefs/clock.c b/fs/bcachefs/clock.c
index 1d6b691e8da6..1f8e035d7119 100644
--- a/fs/bcachefs/clock.c
+++ b/fs/bcachefs/clock.c
@@ -14,21 +14,13 @@ static inline bool io_timer_cmp(const void *l, const void *r, void __always_unus
 	return (*_l)->expire < (*_r)->expire;
 }
 
-static inline void io_timer_swp(void *l, void *r, void __always_unused *args)
-{
-	struct io_timer **_l = (struct io_timer **)l;
-	struct io_timer **_r = (struct io_timer **)r;
-
-	swap(*_l, *_r);
-}
+static const struct min_heap_callbacks callbacks = {
+	.less = io_timer_cmp,
+	.swp = NULL,
+};
 
 void bch2_io_timer_add(struct io_clock *clock, struct io_timer *timer)
 {
-	const struct min_heap_callbacks callbacks = {
-		.less = io_timer_cmp,
-		.swp = io_timer_swp,
-	};
-
 	spin_lock(&clock->timer_lock);
 
 	if (time_after_eq64((u64) atomic64_read(&clock->now), timer->expire)) {
@@ -48,11 +40,6 @@ out:
 
 void bch2_io_timer_del(struct io_clock *clock, struct io_timer *timer)
 {
-	const struct min_heap_callbacks callbacks = {
-		.less = io_timer_cmp,
-		.swp = io_timer_swp,
-	};
-
 	spin_lock(&clock->timer_lock);
 
 	for (size_t i = 0; i < clock->timers.nr; i++)
@@ -142,10 +129,6 @@ void bch2_kthread_io_clock_wait(struct io_clock *clock,
 static struct io_timer *get_expired_timer(struct io_clock *clock, u64 now)
 {
 	struct io_timer *ret = NULL;
-	const struct min_heap_callbacks callbacks = {
-		.less = io_timer_cmp,
-		.swp = io_timer_swp,
-	};
 
 	if (clock->timers.nr &&
 	    time_after_eq64(now, clock->timers.data[0]->expire)) {
diff --git a/fs/bcachefs/ec.c b/fs/bcachefs/ec.c
index 749dcf368841..6094afb0c6be 100644
--- a/fs/bcachefs/ec.c
+++ b/fs/bcachefs/ec.c
@@ -1057,6 +1057,11 @@ static inline void ec_stripes_heap_swap(void *l, void *r, void *h)
 	ec_stripes_heap_set_backpointer(_h, j);
 }
 
+static const struct min_heap_callbacks callbacks = {
+	.less = ec_stripes_heap_cmp,
+	.swp = ec_stripes_heap_swap,
+};
+
 static void heap_verify_backpointer(struct bch_fs *c, size_t idx)
 {
 	ec_stripes_heap *h = &c->ec_stripes_heap;
@@ -1069,11 +1074,6 @@ static void heap_verify_backpointer(struct bch_fs *c, size_t idx)
 void bch2_stripes_heap_del(struct bch_fs *c,
 			   struct stripe *m, size_t idx)
 {
-	const struct min_heap_callbacks callbacks = {
-		.less = ec_stripes_heap_cmp,
-		.swp = ec_stripes_heap_swap,
-	};
-
 	mutex_lock(&c->ec_stripes_heap_lock);
 	heap_verify_backpointer(c, idx);
 
@@ -1084,11 +1084,6 @@ void bch2_stripes_heap_del(struct bch_fs *c,
 void bch2_stripes_heap_insert(struct bch_fs *c,
 			      struct stripe *m, size_t idx)
 {
-	const struct min_heap_callbacks callbacks = {
-		.less = ec_stripes_heap_cmp,
-		.swp = ec_stripes_heap_swap,
-	};
-
 	mutex_lock(&c->ec_stripes_heap_lock);
 	BUG_ON(min_heap_full(&c->ec_stripes_heap));
 
@@ -1107,10 +1102,6 @@ void bch2_stripes_heap_insert(struct bch_fs *c,
 void bch2_stripes_heap_update(struct bch_fs *c,
 			      struct stripe *m, size_t idx)
 {
-	const struct min_heap_callbacks callbacks = {
-		.less = ec_stripes_heap_cmp,
-		.swp = ec_stripes_heap_swap,
-	};
 	ec_stripes_heap *h = &c->ec_stripes_heap;
 	bool do_deletes;
 	size_t i;