This patch series focuses on several adjustments related to heap implementation. Firstly, a type-safe interface has been added to the min_heap, along with the introduction of several new functions to enhance its functionality. Additionally, the heap implementation for bcache and bcachefs has been replaced with the generic min_heap implementation from include/linux. Furthermore, several typos have been corrected. Previous discussion with Kent Overstreet: https://lkml.kernel.org/ioyfizrzq7w7mjrqcadtzsfgpuntowtjdw5pgn4qhvsdp4mqqg@nrlek5vmisbu Regards, Kuan-Wei --- You can preview this patch series on the 'refactor-heap' branch of the repository at the following link: https://github.com/visitorckw/linux Changes in v5: - Rebase on the block tree to resolve the conflict in bcache. - Fix missing initialization for heap data pointer in bcache's bch_btree_node_read_done(). Changes in v4: - Change struct initializations to use designated initializers. - Replace memcpy() with func->swp() in heap_del() due to issues with set_backpointer in bcachefs when setting idx. - Fix an error in ec_stripes_heap_swap() where ec_stripes_heap_set_backpointer() should be called after swapping. Changes in v3: - Avoid heap->heap.nr to eliminate the nested types. - Add MIN_HEAP_PREALLOCATED macro for preallocating some elements. - Use min_heap_sift_up() in min_heap_push(). - Fix a bug in heap_del() where we should copy the last element to 'data + idx * element_size' instead of 'data'. - Add testcases for heap_del(). - Fix bugs in bcache/bcachefs patches where the parameter types in some compare functions should have been 'type **', but were mistakenly written as 'type *'. Changes in v2: - Add attribute __always_unused to the compare and swap functions that do not use the args parameter. - Rename min_heapify() to min_heap_sift_down(). - Update lib/test_min_heap.c to use min_heap_init(). - Refine the commit message for bcache and bcachefs. - Adjust the order of patches in the patch series. Link to v4: https://lore.kernel.org/20240425141826.840077-1-visitorckw@xxxxxxxxx Link to v3: https://lore.kernel.org/20240406164727.577914-1-visitorckw@xxxxxxxxx Link to v2: https://lore.kernel.org/20240320145417.336208-1-visitorckw@xxxxxxxxx Link to v1: https://lkml.kernel.org/20240319180005.246930-1-visitorckw@xxxxxxxxx Kuan-Wei Chiu (16): perf/core: Fix several typos bcache: Fix typo bcachefs: Fix typo lib min_heap: Add type safe interface lib min_heap: Add min_heap_init() lib min_heap: Add min_heap_peek() lib min_heap: Add min_heap_full() lib min_heap: Add args for min_heap_callbacks lib min_heap: Add min_heap_sift_up() lib min_heap: Add min_heap_del() lib min_heap: Update min_heap_push() and min_heap_pop() to return bool values lib min_heap: Rename min_heapify() to min_heap_sift_down() lib min_heap: Update min_heap_push() to use min_heap_sift_up() lib/test_min_heap: Add test for heap_del() bcache: Remove heap-related macros and switch to generic min_heap bcachefs: Remove heap-related macros and switch to generic min_heap drivers/md/bcache/alloc.c | 64 ++++++++--- drivers/md/bcache/bcache.h | 2 +- drivers/md/bcache/bset.c | 124 ++++++++++++++-------- drivers/md/bcache/bset.h | 40 +++---- drivers/md/bcache/btree.c | 69 +++++++----- drivers/md/bcache/extents.c | 53 ++++++---- drivers/md/bcache/movinggc.c | 41 +++++-- drivers/md/bcache/super.c | 3 +- drivers/md/bcache/sysfs.c | 4 +- drivers/md/bcache/util.c | 2 +- drivers/md/bcache/util.h | 67 +----------- drivers/md/bcache/writeback.c | 13 ++- drivers/md/dm-vdo/repair.c | 19 ++-- drivers/md/dm-vdo/slab-depot.c | 14 +-- fs/bcachefs/clock.c | 43 ++++++-- fs/bcachefs/clock_types.h | 2 +- fs/bcachefs/ec.c | 76 ++++++++----- fs/bcachefs/ec_types.h | 2 +- fs/bcachefs/util.c | 2 +- fs/bcachefs/util.h | 118 +-------------------- include/linux/min_heap.h | 188 +++++++++++++++++++++++++-------- kernel/events/core.c | 29 ++--- lib/test_min_heap.c | 75 +++++++++---- 23 files changed, 583 insertions(+), 467 deletions(-) -- 2.34.1
