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([140.113.216.168]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-2e5ad3678d3sm633668a91.24.2024.10.19.21.02.52 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 19 Oct 2024 21:02:56 -0700 (PDT) From: Kuan-Wei Chiu To: colyli@suse.de, kent.overstreet@linux.dev, msakai@redhat.com, corbet@lwn.net, peterz@infradead.org, mingo@redhat.com, acme@kernel.org, namhyung@kernel.org, akpm@linux-foundation.org Cc: mark.rutland@arm.com, alexander.shishkin@linux.intel.com, jolsa@kernel.org, irogers@google.com, adrian.hunter@intel.com, kan.liang@linux.intel.com, willy@infradead.org, jserv@ccns.ncku.edu.tw, linux-kernel@vger.kernel.org, linux-bcache@vger.kernel.org, dm-devel@lists.linux.dev, linux-bcachefs@vger.kernel.org, linux-perf-users@vger.kernel.org, linux-doc@vger.kernel.org, Kuan-Wei Chiu Subject: [PATCH v2 07/10] bcache: Update min_heap_callbacks to use default builtin swap Date: Sun, 20 Oct 2024 12:01:57 +0800 Message-Id: <20241020040200.939973-8-visitorckw@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20241020040200.939973-1-visitorckw@gmail.com> References: <20241020040200.939973-1-visitorckw@gmail.com> Precedence: bulk X-Mailing-List: linux-perf-users@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Replace the swp function pointer in the min_heap_callbacks of bcache with NULL, allowing direct usage of the default builtin swap implementation. This modification simplifies the code and improves performance by removing unnecessary function indirection. Signed-off-by: Kuan-Wei Chiu --- drivers/md/bcache/alloc.c | 11 ++--------- drivers/md/bcache/bset.c | 14 +++----------- drivers/md/bcache/extents.c | 10 +--------- drivers/md/bcache/movinggc.c | 10 +--------- 4 files changed, 7 insertions(+), 38 deletions(-) diff --git a/drivers/md/bcache/alloc.c b/drivers/md/bcache/alloc.c index da50f6661bae..8998e61efa40 100644 --- a/drivers/md/bcache/alloc.c +++ b/drivers/md/bcache/alloc.c @@ -189,23 +189,16 @@ static inline bool new_bucket_min_cmp(const void *l, const void *r, void *args) return new_bucket_prio(ca, *lhs) < new_bucket_prio(ca, *rhs); } -static inline void new_bucket_swap(void *l, void *r, void __always_unused *args) -{ - struct bucket **lhs = l, **rhs = r; - - swap(*lhs, *rhs); -} - static void invalidate_buckets_lru(struct cache *ca) { struct bucket *b; const struct min_heap_callbacks bucket_max_cmp_callback = { .less = new_bucket_max_cmp, - .swp = new_bucket_swap, + .swp = NULL, }; const struct min_heap_callbacks bucket_min_cmp_callback = { .less = new_bucket_min_cmp, - .swp = new_bucket_swap, + .swp = NULL, }; ca->heap.nr = 0; diff --git a/drivers/md/bcache/bset.c b/drivers/md/bcache/bset.c index bd97d8626887..68258a16e125 100644 --- a/drivers/md/bcache/bset.c +++ b/drivers/md/bcache/bset.c @@ -1093,14 +1093,6 @@ static inline bool new_btree_iter_cmp(const void *l, const void *r, void __alway return bkey_cmp(_l->k, _r->k) <= 0; } -static inline void new_btree_iter_swap(void *iter1, void *iter2, void __always_unused *args) -{ - struct btree_iter_set *_iter1 = iter1; - struct btree_iter_set *_iter2 = iter2; - - swap(*_iter1, *_iter2); -} - static inline bool btree_iter_end(struct btree_iter *iter) { return !iter->heap.nr; @@ -1111,7 +1103,7 @@ void bch_btree_iter_push(struct btree_iter *iter, struct bkey *k, { const struct min_heap_callbacks callbacks = { .less = new_btree_iter_cmp, - .swp = new_btree_iter_swap, + .swp = NULL, }; if (k != end) @@ -1157,7 +1149,7 @@ static inline struct bkey *__bch_btree_iter_next(struct btree_iter *iter, struct bkey *ret = NULL; const struct min_heap_callbacks callbacks = { .less = cmp, - .swp = new_btree_iter_swap, + .swp = NULL, }; if (!btree_iter_end(iter)) { @@ -1231,7 +1223,7 @@ static void btree_mergesort(struct btree_keys *b, struct bset *out, : bch_ptr_invalid; const struct min_heap_callbacks callbacks = { .less = b->ops->sort_cmp, - .swp = new_btree_iter_swap, + .swp = NULL, }; /* Heapify the iterator, using our comparison function */ diff --git a/drivers/md/bcache/extents.c b/drivers/md/bcache/extents.c index a7221e5dbe81..4b84fda1530a 100644 --- a/drivers/md/bcache/extents.c +++ b/drivers/md/bcache/extents.c @@ -266,20 +266,12 @@ static bool new_bch_extent_sort_cmp(const void *l, const void *r, void __always_ return !(c ? c > 0 : _l->k < _r->k); } -static inline void new_btree_iter_swap(void *iter1, void *iter2, void __always_unused *args) -{ - struct btree_iter_set *_iter1 = iter1; - struct btree_iter_set *_iter2 = iter2; - - swap(*_iter1, *_iter2); -} - static struct bkey *bch_extent_sort_fixup(struct btree_iter *iter, struct bkey *tmp) { const struct min_heap_callbacks callbacks = { .less = new_bch_extent_sort_cmp, - .swp = new_btree_iter_swap, + .swp = NULL, }; while (iter->heap.nr > 1) { struct btree_iter_set *top = iter->heap.data, *i = top + 1; diff --git a/drivers/md/bcache/movinggc.c b/drivers/md/bcache/movinggc.c index 7f482729c56d..ef6abf33f926 100644 --- a/drivers/md/bcache/movinggc.c +++ b/drivers/md/bcache/movinggc.c @@ -190,14 +190,6 @@ static bool new_bucket_cmp(const void *l, const void *r, void __always_unused *a return GC_SECTORS_USED(*_l) >= GC_SECTORS_USED(*_r); } -static void new_bucket_swap(void *l, void *r, void __always_unused *args) -{ - struct bucket **_l = l; - struct bucket **_r = r; - - swap(*_l, *_r); -} - static unsigned int bucket_heap_top(struct cache *ca) { struct bucket *b; @@ -212,7 +204,7 @@ void bch_moving_gc(struct cache_set *c) unsigned long sectors_to_move, reserve_sectors; const struct min_heap_callbacks callbacks = { .less = new_bucket_cmp, - .swp = new_bucket_swap, + .swp = NULL, }; if (!c->copy_gc_enabled) -- 2.34.1