From 119e9db233ad0f4cbd4cfb9f9385a7bca378b37d Mon Sep 17 00:00:00 2001 From: Zeng Chi Date: Mon, 21 Sep 2026 18:24:42 +0800 Subject: KVM: Don't pre-reserve xarray entries when storing empty/NULL attributes Skip the xarray reservation loop when clearing all memory attributes, as storing NULL only erases the entry and never needs to allocate, so no reservation (and no cleanup of a failed one) is required in that case. Suggested-by: Sean Christopherson Cc: David Ballesteros Signed-off-by: Zeng Chi Link: https://patch.msgid.link/20260921102442.1232375-1-zeng_chi911@163.com [sean: split to separate patch] Signed-off-by: Sean Christopherson --- include/crypto/pcrypt.h | 39 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 39 insertions(+) create mode 100644 include/crypto/pcrypt.h (limited to 'include/crypto/pcrypt.h') diff --git a/include/crypto/pcrypt.h b/include/crypto/pcrypt.h new file mode 100644 index 000000000..234d7cf3c --- /dev/null +++ b/include/crypto/pcrypt.h @@ -0,0 +1,39 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * pcrypt - Parallel crypto engine. + * + * Copyright (C) 2009 secunet Security Networks AG + * Copyright (C) 2009 Steffen Klassert + */ + +#ifndef _CRYPTO_PCRYPT_H +#define _CRYPTO_PCRYPT_H + +#include +#include +#include + +struct pcrypt_request { + struct padata_priv padata; + void *data; + void *__ctx[] CRYPTO_MINALIGN_ATTR; +}; + +static inline void *pcrypt_request_ctx(struct pcrypt_request *req) +{ + return req->__ctx; +} + +static inline +struct padata_priv *pcrypt_request_padata(struct pcrypt_request *req) +{ + return &req->padata; +} + +static inline +struct pcrypt_request *pcrypt_padata_request(struct padata_priv *padata) +{ + return container_of(padata, struct pcrypt_request, padata); +} + +#endif -- cgit v1.3.1