lib min_heap: add args for min_heap_callbacks

Add a third parameter 'args' for the 'less' and 'swp' functions in the
'struct min_heap_callbacks'.  This additional parameter allows these
comparison and swap functions to handle extra arguments when necessary.

Link: https://lkml.kernel.org/r/20240524152958.919343-9-visitorckw@gmail.com
Signed-off-by: Kuan-Wei Chiu <visitorckw@gmail.com>
Reviewed-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Bagas Sanjaya <bagasdotme@gmail.com>
Cc: Brian Foster <bfoster@redhat.com>
Cc: Ching-Chun (Jim) Huang <jserv@ccns.ncku.edu.tw>
Cc: Coly Li <colyli@suse.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kent Overstreet <kent.overstreet@linux.dev>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Matthew Sakai <msakai@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

2 files changed, 10 insertions, 9 deletions

diff --git a/drivers/md/dm-vdo/repair.c b/drivers/md/dm-vdo/repair.c
index e8ad611fe7c1..eae990859db4 100644
--- a/drivers/md/dm-vdo/repair.c
+++ b/drivers/md/dm-vdo/repair.c
@@ -137,7 +137,7 @@ struct repair_completion {
  * to sort by slot while still ensuring we replay all entries with the same slot in the exact order
  * as they appeared in the journal.
  */
-static bool mapping_is_less_than(const void *item1, const void *item2)
+static bool mapping_is_less_than(const void *item1, const void *item2, void __always_unused *args)
 {
 	const struct numbered_block_mapping *mapping1 =
 		(const struct numbered_block_mapping *) item1;
@@ -156,7 +156,7 @@ static bool mapping_is_less_than(const void *item1, const void *item2)
 	return 0;
 }
 
-static void swap_mappings(void *item1, void *item2)
+static void swap_mappings(void *item1, void *item2, void __always_unused *args)
 {
 	struct numbered_block_mapping *mapping1 = item1;
 	struct numbered_block_mapping *mapping2 = item2;
@@ -182,8 +182,8 @@ static struct numbered_block_mapping *sort_next_heap_element(struct repair_compl
 	 * restore the heap invariant, and return a pointer to the popped element.
 	 */
 	last = &repair->entries[--heap->nr];
-	swap_mappings(heap->data, last);
-	min_heapify(heap, 0, &repair_min_heap);
+	swap_mappings(heap->data, last, NULL);
+	min_heapify(heap, 0, &repair_min_heap, NULL);
 	return last;
 }
 
@@ -1123,7 +1123,7 @@ static void recover_block_map(struct vdo_completion *completion)
 		.nr = repair->block_map_entry_count,
 		.size = repair->block_map_entry_count,
 	};
-	min_heapify_all(&repair->replay_heap, &repair_min_heap);
+	min_heapify_all(&repair->replay_heap, &repair_min_heap, NULL);
 
 	vdo_log_info("Replaying %zu recovery entries into block map",
 		     repair->block_map_entry_count);
diff --git a/drivers/md/dm-vdo/slab-depot.c b/drivers/md/dm-vdo/slab-depot.c
index ef9a6e53109c..274f9ccd072f 100644
--- a/drivers/md/dm-vdo/slab-depot.c
+++ b/drivers/md/dm-vdo/slab-depot.c
@@ -3288,7 +3288,8 @@ int vdo_release_block_reference(struct block_allocator *allocator,
  * Thus, the ordering is reversed from the usual sense since min_heap returns smaller elements
  * before larger ones.
  */
-static bool slab_status_is_less_than(const void *item1, const void *item2)
+static bool slab_status_is_less_than(const void *item1, const void *item2,
+					void __always_unused *args)
 {
 	const struct slab_status *info1 = item1;
 	const struct slab_status *info2 = item2;
@@ -3300,7 +3301,7 @@ static bool slab_status_is_less_than(const void *item1, const void *item2)
 	return info1->slab_number < info2->slab_number;
 }
 
-static void swap_slab_statuses(void *item1, void *item2)
+static void swap_slab_statuses(void *item1, void *item2, void __always_unused *args)
 {
 	struct slab_status *info1 = item1;
 	struct slab_status *info2 = item2;
@@ -3525,7 +3526,7 @@ static int __must_check vdo_prepare_slabs_for_allocation(struct block_allocator
 		.nr = allocator->slab_count,
 		.size = allocator->slab_count,
 	};
-	min_heapify_all(&heap, &slab_status_min_heap);
+	min_heapify_all(&heap, &slab_status_min_heap, NULL);
 
 	while (heap.nr > 0) {
 		bool high_priority;
@@ -3533,7 +3534,7 @@ static int __must_check vdo_prepare_slabs_for_allocation(struct block_allocator
 		struct slab_journal *journal;
 
 		current_slab_status = slab_statuses[0];
-		min_heap_pop(&heap, &slab_status_min_heap);
+		min_heap_pop(&heap, &slab_status_min_heap, NULL);
 		slab = depot->slabs[current_slab_status.slab_number];
 
 		if ((depot->load_type == VDO_SLAB_DEPOT_REBUILD_LOAD) ||