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-rw-r--r--io_uring/kbuf.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/io_uring/kbuf.c b/io_uring/kbuf.c
index 325ca7f8b0a0..39d15a27eb92 100644
--- a/io_uring/kbuf.c
+++ b/io_uring/kbuf.c
@@ -306,6 +306,14 @@ void io_destroy_buffers(struct io_ring_ctx *ctx)
kfree(bl);
}
+ /*
+ * Move deferred locked entries to cache before pruning
+ */
+ spin_lock(&ctx->completion_lock);
+ if (!list_empty(&ctx->io_buffers_comp))
+ list_splice_init(&ctx->io_buffers_comp, &ctx->io_buffers_cache);
+ spin_unlock(&ctx->completion_lock);
+
list_for_each_safe(item, tmp, &ctx->io_buffers_cache) {
buf = list_entry(item, struct io_buffer, list);
kmem_cache_free(io_buf_cachep, buf);