| Message ID | 636aed30be8c35d78f45e244998bc6209283cccc.1667384020.git.asml.silence@gmail.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | implement pcpu bio caching for IRQ I/O | expand |
diff --git a/include/linux/mempool.h b/include/linux/mempool.h index 0c964ac107c2..4aae6c06c5f2 100644 --- a/include/linux/mempool.h +++ b/include/linux/mempool.h @@ -30,6 +30,11 @@ static inline bool mempool_initialized(mempool_t *pool) return pool->elements != NULL; } +static inline bool mempool_is_saturated(mempool_t *pool) +{ + return READ_ONCE(pool->curr_nr) >= pool->min_nr; +} + void mempool_exit(mempool_t *pool); int mempool_init_node(mempool_t *pool, int min_nr, mempool_alloc_t *alloc_fn, mempool_free_t *free_fn, void *pool_data,
Introduce a helper mempool_is_saturated(), which tells if the mempool is under-filled or not. We need it to figure out whether it should be freed right into the mempool or could be cached with top level caches. Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> --- include/linux/mempool.h | 5 +++++ 1 file changed, 5 insertions(+)