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lib min_heap: add min_heap_full()

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Add min_heap_full() which returns a boolean value indicating whether the
heap has reached its maximum capacity.

Link: https://lkml.kernel.org/r/20240524152958.919343-8-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>
This commit is contained in:
Kuan-Wei Chiu 2024-05-24 23:29:49 +08:00 committed by Andrew Morton
parent 0562d54ddc
commit b9d720e65a
1 changed files with 10 additions and 0 deletions
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10
include/linux/min_heap.h
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@ -63,6 +63,16 @@ void *__min_heap_peek(struct min_heap_char *heap)
#define min_heap_peek(_heap) \
(__minheap_cast(_heap) __min_heap_peek((min_heap_char *)_heap))
/* Check if the heap is full. */
static __always_inline
bool __min_heap_full(min_heap_char *heap)
{
return heap->nr == heap->size;
}
#define min_heap_full(_heap) \
__min_heap_full((min_heap_char *)_heap)
/* Sift the element at pos down the heap. */
static __always_inline
void __min_heapify(min_heap_char *heap, int pos, size_t elem_size,