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authorJens Axboe <axboe@kernel.dk>2021-02-13 17:00:02 +0100
committerJens Axboe <axboe@kernel.dk>2021-02-13 17:00:02 +0100
commit68e68ee6e359318c40891f614612616d219066d0 (patch)
treed2edf1adc09aaa6fa8d84222d42f13fa51a315bd /fs
parentio-wq: clear out worker ->fs and ->files (diff)
downloadlinux-68e68ee6e359318c40891f614612616d219066d0.tar.xz
linux-68e68ee6e359318c40891f614612616d219066d0.zip
io_uring: allow task match to be passed to io_req_cache_free()
No changes in this patch, just allows a caller to pass in a targeted task that we must match for freeing requests in the cache. Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'fs')
-rw-r--r--fs/io_uring.c13
1 files changed, 7 insertions, 6 deletions
diff --git a/fs/io_uring.c b/fs/io_uring.c
index 2e8cb739c835..9cd7b03a6f34 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -8681,12 +8681,13 @@ static void io_destroy_buffers(struct io_ring_ctx *ctx)
idr_destroy(&ctx->io_buffer_idr);
}
-static void io_req_cache_free(struct list_head *list)
+static void io_req_cache_free(struct list_head *list, struct task_struct *tsk)
{
- while (!list_empty(list)) {
- struct io_kiocb *req;
+ struct io_kiocb *req, *nxt;
- req = list_first_entry(list, struct io_kiocb, compl.list);
+ list_for_each_entry_safe(req, nxt, list, compl.list) {
+ if (tsk && req->task != tsk)
+ continue;
list_del(&req->compl.list);
kmem_cache_free(req_cachep, req);
}
@@ -8742,8 +8743,8 @@ static void io_ring_ctx_free(struct io_ring_ctx *ctx)
free_uid(ctx->user);
put_cred(ctx->creds);
kfree(ctx->cancel_hash);
- io_req_cache_free(&ctx->submit_state.comp.free_list);
- io_req_cache_free(&ctx->submit_state.comp.locked_free_list);
+ io_req_cache_free(&ctx->submit_state.comp.free_list, NULL);
+ io_req_cache_free(&ctx->submit_state.comp.locked_free_list, NULL);
kfree(ctx);
}