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block: replace call_rcu by kfree_rcu for simple kmem_cache_free callback 

JIRA: https://issues.redhat.com/browse/RHEL-79409

commit 28878733ca5abbce0d0e66476605746d9c4c9765
Author: Julia Lawall <Julia.Lawall@inria.fr>
Date:   Sun Oct 13 22:16:56 2024 +0200

    block: replace call_rcu by kfree_rcu for simple kmem_cache_free callback

    Since SLOB was removed and since
    commit 6c6c47b063b5 ("mm, slab: call kvfree_rcu_barrier() from kmem_cache_destroy()"),
    it is not necessary to use call_rcu when the callback only performs
    kmem_cache_free. Use kfree_rcu() directly.

    The changes were made using Coccinelle.

    Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>
    Link: https://lore.kernel.org/r/20241013201704.49576-10-Julia.Lawall@inria.fr
    Signed-off-by: Jens Axboe <axboe@kernel.dk>

Signed-off-by: Ming Lei <ming.lei@redhat.com>
This commit is contained in:
Ming Lei 2024-10-13 22:16:56 +02:00
parent 2060d115b5
commit a4a6e6989c
1 changed files with 1 additions and 8 deletions
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9
block/blk-ioc.c
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@ -32,13 +32,6 @@ static void get_io_context(struct io_context *ioc)
atomic_long_inc(&ioc->refcount); atomic_long_inc(&ioc->refcount);
} }
static void icq_free_icq_rcu(struct rcu_head *head)
{
struct io_cq *icq = container_of(head, struct io_cq, __rcu_head);
kmem_cache_free(icq->__rcu_icq_cache, icq);
}
/* /*
* Exit an icq. Called with ioc locked for blk-mq, and with both ioc * Exit an icq. Called with ioc locked for blk-mq, and with both ioc
* and queue locked for legacy. * and queue locked for legacy.
@ -102,7 +95,7 @@ static void ioc_destroy_icq(struct io_cq *icq)
*/ */
icq->__rcu_icq_cache = et->icq_cache; icq->__rcu_icq_cache = et->icq_cache;
icq->flags |= ICQ_DESTROYED; icq->flags |= ICQ_DESTROYED;
call_rcu(&icq->__rcu_head, icq_free_icq_rcu); kfree_rcu(icq, __rcu_head);
} }
/* /*