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Diffstat (limited to 'io_uring/io_uring.c')
-rw-r--r--io_uring/io_uring.c9
1 files changed, 0 insertions, 9 deletions
diff --git a/io_uring/io_uring.c b/io_uring/io_uring.c
index e57d00939ab9..a7a4d637aee0 100644
--- a/io_uring/io_uring.c
+++ b/io_uring/io_uring.c
@@ -290,13 +290,6 @@ static __cold struct io_ring_ctx *io_ring_ctx_alloc(struct io_uring_params *p)
goto err;
if (io_alloc_hash_table(&ctx->cancel_table_locked, hash_bits))
goto err;
-
- ctx->dummy_ubuf = kzalloc(sizeof(*ctx->dummy_ubuf), GFP_KERNEL);
- if (!ctx->dummy_ubuf)
- goto err;
- /* set invalid range, so io_import_fixed() fails meeting it */
- ctx->dummy_ubuf->ubuf = -1UL;
-
if (percpu_ref_init(&ctx->refs, io_ring_ctx_ref_free,
0, GFP_KERNEL))
goto err;
@@ -335,7 +328,6 @@ static __cold struct io_ring_ctx *io_ring_ctx_alloc(struct io_uring_params *p)
INIT_WQ_LIST(&ctx->submit_state.compl_reqs);
return ctx;
err:
- kfree(ctx->dummy_ubuf);
kfree(ctx->cancel_table.hbs);
kfree(ctx->cancel_table_locked.hbs);
kfree(ctx->io_bl);
@@ -2897,7 +2889,6 @@ static __cold void io_ring_ctx_free(struct io_ring_ctx *ctx)
io_wq_put_hash(ctx->hash_map);
kfree(ctx->cancel_table.hbs);
kfree(ctx->cancel_table_locked.hbs);
- kfree(ctx->dummy_ubuf);
kfree(ctx->io_bl);
xa_destroy(&ctx->io_bl_xa);
kfree(ctx);