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Thu, 29 Oct 2020 17:20:21 +0000 (UTC) Received: from sender by smtp.strato.de (RZmta 47.3.0 DYNA|AUTH) with ESMTPSA id j0b1afw9THKE3fO (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256 bits)) (Client did not present a certificate); Thu, 29 Oct 2020 18:20:14 +0100 (CET) X-Outflank-Mailman: Message body and most headers restored to incoming version X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" X-Inumbo-ID: 8acf577a-2151-4411-8110-51fcf5b5d3c3 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; t=1603992020; s=strato-dkim-0002; d=aepfle.de; h=References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From: X-RZG-CLASS-ID:X-RZG-AUTH:From:Subject:Sender; bh=+/YrJrdWLFQBmx4Fjz9uQTzJVj46LYQgpP9ngHfsNNY=; b=KgAiCTG6MTTv88AsoblIMcLuAeIHAYJP7vdff65WN3i7lIBdymfh1dFxmBOfxnULbH 9XrbAvJwsQqAwevBUO1V1rtPijyqQZDN1pvm9RCfmDunnbV7ZPjknZuyopbMi823g37e k0u0nDAAmE6c03KnaivQqqL4nvuD53P67c2LhoeoWqIko6wSE96tShAK2NrIWlMnEmY3 5n+PNyTU60TPWdfAwkytJxmBevM+1vXpcJj48p08Rg0jKpaZGT6juwBBfnQivxhGMdUV 2Pd7oGzcugqF7srBMib1aR2QPn/21M+FdvDSd/7Zba5/gXuYv+k+Aru3WjYLO/2NmtwC My3w== X-RZG-AUTH: ":P2EQZWCpfu+qG7CngxMFH1J+3q8wa/QXkBR9MXjAuzBW/OdlBZQ4AHSS3G1Jjw==" X-RZG-CLASS-ID: mo00 From: Olaf Hering To: xen-devel@lists.xenproject.org Cc: Olaf Hering , Ian Jackson , Wei Liu , Anthony PERARD Subject: [PATCH v1 16/23] tools/guest: restore: move types array Date: Thu, 29 Oct 2020 18:19:56 +0100 Message-Id: <20201029172004.17219-17-olaf@aepfle.de> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20201029172004.17219-1-olaf@aepfle.de> References: <20201029172004.17219-1-olaf@aepfle.de> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Type: text/plain; charset="utf-8" Remove allocation from hotpath, move types array into preallocated space. Signed-off-by: Olaf Hering --- tools/libs/guest/xg_sr_common.h | 1 + tools/libs/guest/xg_sr_restore.c | 12 +----------- 2 files changed, 2 insertions(+), 11 deletions(-) diff --git a/tools/libs/guest/xg_sr_common.h b/tools/libs/guest/xg_sr_commo= n.h index 516d9b9fb5..0ceecb289d 100644 --- a/tools/libs/guest/xg_sr_common.h +++ b/tools/libs/guest/xg_sr_common.h @@ -226,6 +226,7 @@ struct xc_sr_save_arrays { struct xc_sr_restore_arrays { /* handle_page_data */ xen_pfn_t pfns[MAX_BATCH_SIZE]; + uint32_t types[MAX_BATCH_SIZE]; }; =20 struct xc_sr_context diff --git a/tools/libs/guest/xg_sr_restore.c b/tools/libs/guest/xg_sr_rest= ore.c index 7d1447e86c..7729071e41 100644 --- a/tools/libs/guest/xg_sr_restore.c +++ b/tools/libs/guest/xg_sr_restore.c @@ -316,7 +316,7 @@ static int handle_page_data(struct xc_sr_context *ctx, = struct xc_sr_record *rec) int rc =3D -1; =20 xen_pfn_t *pfns =3D ctx->restore.m->pfns, pfn; - uint32_t *types =3D NULL, type; + uint32_t *types =3D ctx->restore.m->types, type; =20 /* * v2 compatibility only exists for x86 streams. This is a bit of a @@ -363,14 +363,6 @@ static int handle_page_data(struct xc_sr_context *ctx,= struct xc_sr_record *rec) goto err; } =20 - types =3D malloc(pages->count * sizeof(*types)); - if ( !types ) - { - ERROR("Unable to allocate enough memory for %u pfns", - pages->count); - goto err; - } - for ( i =3D 0; i < pages->count; ++i ) { pfn =3D pages->pfn[i] & PAGE_DATA_PFN_MASK; @@ -410,8 +402,6 @@ static int handle_page_data(struct xc_sr_context *ctx, = struct xc_sr_record *rec) rc =3D process_page_data(ctx, pages->count, pfns, types, &pages->pfn[pages->count]); err: - free(types); - return rc; } =20