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io_uring/rsrc: consolidate node caching

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We store one pre-allocated rsrc node in ->rsrc_backup_node, merge it
with ->rsrc_node_cache.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/6d5410e51ccd29be7a716be045b51d6b371baef6.1681210788.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Pavel Begunkov
2023-04-11 12:06:05 +01:00
committed by Jens Axboe
parent 786788a8cf
commit 528407b1e0
4 changed files with 16 additions and 12 deletions
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io_uring/alloc_cache.h
+5
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@@ -23,6 +23,11 @@ static inline bool io_alloc_cache_put(struct io_alloc_cache *cache,
return false;
}
static inline bool io_alloc_cache_empty(struct io_alloc_cache *cache)
{
return !cache->list.next;
}
static inline struct io_cache_entry *io_alloc_cache_get(struct io_alloc_cache *cache)
{
if (cache->list.next) {