From patchwork Mon Aug 26 19:53:05 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Fabiano Rosas X-Patchwork-Id: 13778363 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id F09E1C5472E for ; Mon, 26 Aug 2024 19:54:20 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1sifmQ-0006Wm-43; Mon, 26 Aug 2024 15:53:34 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1sifmO-0006ST-TQ for qemu-devel@nongnu.org; Mon, 26 Aug 2024 15:53:32 -0400 Received: from smtp-out1.suse.de ([195.135.223.130]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1sifmL-0002CM-M9 for qemu-devel@nongnu.org; Mon, 26 Aug 2024 15:53:31 -0400 Received: from imap1.dmz-prg2.suse.org (imap1.dmz-prg2.suse.org [IPv6:2a07:de40:b281:104:10:150:64:97]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by smtp-out1.suse.de (Postfix) with ESMTPS id 33DA521ACC; Mon, 26 Aug 2024 19:53:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1724702008; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=ZoUl0udIRRV4d9HW5hBW3oAtA8isHXavDrhrtHZ82rM=; b=FNqhQnsu9S0/2vMF67ICxzm/1l0zPIGMPku/OrV7u/wOGQQQIFyyXMXQECioe3VOHREn2a A+9oS4bWHVqpeul2a4BsPhH+kswXksAiOstNKXHSkOSklJbQKUryavsipj5hcgMyakBrCW NP1WmIRsU/7/O+DiuOuLlHmzgqUJ+K0= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1724702008; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=ZoUl0udIRRV4d9HW5hBW3oAtA8isHXavDrhrtHZ82rM=; b=bU5+6sn2zwQ6PWCvhCGjtA3lh1ZidysNwCpri2nZDUa/sawUlwM7sMZORGKI5RVvGS87fk wPCsVSP/N9bcUQBA== Authentication-Results: smtp-out1.suse.de; dkim=pass header.d=suse.de header.s=susede2_rsa header.b=FNqhQnsu; dkim=pass header.d=suse.de header.s=susede2_ed25519 header.b=bU5+6sn2 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1724702008; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=ZoUl0udIRRV4d9HW5hBW3oAtA8isHXavDrhrtHZ82rM=; b=FNqhQnsu9S0/2vMF67ICxzm/1l0zPIGMPku/OrV7u/wOGQQQIFyyXMXQECioe3VOHREn2a A+9oS4bWHVqpeul2a4BsPhH+kswXksAiOstNKXHSkOSklJbQKUryavsipj5hcgMyakBrCW NP1WmIRsU/7/O+DiuOuLlHmzgqUJ+K0= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1724702008; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=ZoUl0udIRRV4d9HW5hBW3oAtA8isHXavDrhrtHZ82rM=; b=bU5+6sn2zwQ6PWCvhCGjtA3lh1ZidysNwCpri2nZDUa/sawUlwM7sMZORGKI5RVvGS87fk wPCsVSP/N9bcUQBA== Received: from imap1.dmz-prg2.suse.org (localhost [127.0.0.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by imap1.dmz-prg2.suse.org (Postfix) with ESMTPS id C05471398D; Mon, 26 Aug 2024 19:53:26 +0000 (UTC) Received: from dovecot-director2.suse.de ([2a07:de40:b281:106:10:150:64:167]) by imap1.dmz-prg2.suse.org with ESMTPSA id IDA5ITbdzGY5PQAAD6G6ig (envelope-from ); Mon, 26 Aug 2024 19:53:26 +0000 From: Fabiano Rosas To: qemu-devel@nongnu.org Cc: Peter Xu , "Maciej S . Szmigiero" , =?utf-8?q?Philippe_Mat?= =?utf-8?q?hieu-Daud=C3=A9?= Subject: [PATCH v5 01/18] migration/multifd: Reduce access to p->pages Date: Mon, 26 Aug 2024 16:53:05 -0300 Message-Id: <20240826195322.16532-2-farosas@suse.de> X-Mailer: git-send-email 2.35.3 In-Reply-To: <20240826195322.16532-1-farosas@suse.de> References: <20240826195322.16532-1-farosas@suse.de> MIME-Version: 1.0 X-Rspamd-Queue-Id: 33DA521ACC X-Spamd-Result: default: False [-3.01 / 50.00]; BAYES_HAM(-3.00)[100.00%]; NEURAL_HAM_LONG(-1.00)[-1.000]; MID_CONTAINS_FROM(1.00)[]; R_MISSING_CHARSET(0.50)[]; R_DKIM_ALLOW(-0.20)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; NEURAL_HAM_SHORT(-0.20)[-1.000]; MIME_GOOD(-0.10)[text/plain]; MX_GOOD(-0.01)[]; DBL_BLOCKED_OPENRESOLVER(0.00)[imap1.dmz-prg2.suse.org:helo,imap1.dmz-prg2.suse.org:rdns,suse.de:email,suse.de:dkim,suse.de:mid]; ARC_NA(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; FROM_HAS_DN(0.00)[]; TO_DN_SOME(0.00)[]; MIME_TRACE(0.00)[0:+]; TO_MATCH_ENVRCPT_ALL(0.00)[]; FROM_EQ_ENVFROM(0.00)[]; RCVD_TLS_ALL(0.00)[]; DKIM_SIGNED(0.00)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; FUZZY_BLOCKED(0.00)[rspamd.com]; RCVD_COUNT_TWO(0.00)[2]; DWL_DNSWL_BLOCKED(0.00)[suse.de:dkim]; RCPT_COUNT_THREE(0.00)[4]; DKIM_TRACE(0.00)[suse.de:+] X-Rspamd-Server: rspamd2.dmz-prg2.suse.org X-Rspamd-Action: no action Received-SPF: pass client-ip=195.135.223.130; envelope-from=farosas@suse.de; helo=smtp-out1.suse.de X-Spam_score_int: -43 X-Spam_score: -4.4 X-Spam_bar: ---- X-Spam_report: (-4.4 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_MED=-2.3, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org I'm about to replace the p->pages pointer with an opaque pointer, so do a cleanup now to reduce direct accesses to p->page, which makes the next diffs cleaner. Reviewed-by: Peter Xu Signed-off-by: Fabiano Rosas --- migration/multifd-qpl.c | 8 +++++--- migration/multifd-uadk.c | 9 +++++---- migration/multifd-zlib.c | 2 +- migration/multifd-zstd.c | 2 +- migration/multifd.c | 13 +++++++------ 5 files changed, 19 insertions(+), 15 deletions(-) diff --git a/migration/multifd-qpl.c b/migration/multifd-qpl.c index 9265098ee7..f8c84c52cf 100644 --- a/migration/multifd-qpl.c +++ b/migration/multifd-qpl.c @@ -404,13 +404,14 @@ retry: static void multifd_qpl_compress_pages_slow_path(MultiFDSendParams *p) { QplData *qpl = p->compress_data; + MultiFDPages_t *pages = p->pages; uint32_t size = p->page_size; qpl_job *job = qpl->sw_job; uint8_t *zbuf = qpl->zbuf; uint8_t *buf; - for (int i = 0; i < p->pages->normal_num; i++) { - buf = p->pages->block->host + p->pages->offset[i]; + for (int i = 0; i < pages->normal_num; i++) { + buf = pages->block->host + pages->offset[i]; multifd_qpl_prepare_comp_job(job, buf, zbuf, size); if (qpl_execute_job(job) == QPL_STS_OK) { multifd_qpl_fill_packet(i, p, zbuf, job->total_out); @@ -498,6 +499,7 @@ static void multifd_qpl_compress_pages(MultiFDSendParams *p) static int multifd_qpl_send_prepare(MultiFDSendParams *p, Error **errp) { QplData *qpl = p->compress_data; + MultiFDPages_t *pages = p->pages; uint32_t len = 0; if (!multifd_send_prepare_common(p)) { @@ -505,7 +507,7 @@ static int multifd_qpl_send_prepare(MultiFDSendParams *p, Error **errp) } /* The first IOV is used to store the compressed page lengths */ - len = p->pages->normal_num * sizeof(uint32_t); + len = pages->normal_num * sizeof(uint32_t); multifd_qpl_fill_iov(p, (uint8_t *) qpl->zlen, len); if (qpl->hw_avail) { multifd_qpl_compress_pages(p); diff --git a/migration/multifd-uadk.c b/migration/multifd-uadk.c index d12353fb21..b8ba3cd9c1 100644 --- a/migration/multifd-uadk.c +++ b/migration/multifd-uadk.c @@ -174,19 +174,20 @@ static int multifd_uadk_send_prepare(MultiFDSendParams *p, Error **errp) uint32_t hdr_size; uint8_t *buf = uadk_data->buf; int ret = 0; + MultiFDPages_t *pages = p->pages; if (!multifd_send_prepare_common(p)) { goto out; } - hdr_size = p->pages->normal_num * sizeof(uint32_t); + hdr_size = pages->normal_num * sizeof(uint32_t); /* prepare the header that stores the lengths of all compressed data */ prepare_next_iov(p, uadk_data->buf_hdr, hdr_size); - for (int i = 0; i < p->pages->normal_num; i++) { + for (int i = 0; i < pages->normal_num; i++) { struct wd_comp_req creq = { .op_type = WD_DIR_COMPRESS, - .src = p->pages->block->host + p->pages->offset[i], + .src = pages->block->host + pages->offset[i], .src_len = p->page_size, .dst = buf, /* Set dst_len to double the src in case compressed out >= page_size */ @@ -214,7 +215,7 @@ static int multifd_uadk_send_prepare(MultiFDSendParams *p, Error **errp) */ if (!uadk_data->handle || creq.dst_len >= p->page_size) { uadk_data->buf_hdr[i] = cpu_to_be32(p->page_size); - prepare_next_iov(p, p->pages->block->host + p->pages->offset[i], + prepare_next_iov(p, pages->block->host + pages->offset[i], p->page_size); buf += p->page_size; } diff --git a/migration/multifd-zlib.c b/migration/multifd-zlib.c index 2ced69487e..65f8aba5c8 100644 --- a/migration/multifd-zlib.c +++ b/migration/multifd-zlib.c @@ -147,7 +147,7 @@ static int zlib_send_prepare(MultiFDSendParams *p, Error **errp) * with compression. zlib does not guarantee that this is safe, * therefore copy the page before calling deflate(). */ - memcpy(z->buf, p->pages->block->host + pages->offset[i], p->page_size); + memcpy(z->buf, pages->block->host + pages->offset[i], p->page_size); zs->avail_in = p->page_size; zs->next_in = z->buf; diff --git a/migration/multifd-zstd.c b/migration/multifd-zstd.c index ca17b7e310..cb6075a9a5 100644 --- a/migration/multifd-zstd.c +++ b/migration/multifd-zstd.c @@ -138,7 +138,7 @@ static int zstd_send_prepare(MultiFDSendParams *p, Error **errp) if (i == pages->normal_num - 1) { flush = ZSTD_e_flush; } - z->in.src = p->pages->block->host + pages->offset[i]; + z->in.src = pages->block->host + pages->offset[i]; z->in.size = p->page_size; z->in.pos = 0; diff --git a/migration/multifd.c b/migration/multifd.c index a6db05502a..0bd9c2253e 100644 --- a/migration/multifd.c +++ b/migration/multifd.c @@ -114,11 +114,11 @@ static void multifd_set_file_bitmap(MultiFDSendParams *p) assert(pages->block); - for (int i = 0; i < p->pages->normal_num; i++) { + for (int i = 0; i < pages->normal_num; i++) { ramblock_set_file_bmap_atomic(pages->block, pages->offset[i], true); } - for (int i = p->pages->normal_num; i < p->pages->num; i++) { + for (int i = pages->normal_num; i < pages->num; i++) { ramblock_set_file_bmap_atomic(pages->block, pages->offset[i], false); } } @@ -417,7 +417,7 @@ void multifd_send_fill_packet(MultiFDSendParams *p) int i; packet->flags = cpu_to_be32(p->flags); - packet->pages_alloc = cpu_to_be32(p->pages->allocated); + packet->pages_alloc = cpu_to_be32(pages->allocated); packet->normal_pages = cpu_to_be32(pages->normal_num); packet->zero_pages = cpu_to_be32(zero_num); packet->next_packet_size = cpu_to_be32(p->next_packet_size); @@ -953,7 +953,7 @@ static void *multifd_send_thread(void *opaque) if (migrate_mapped_ram()) { ret = file_write_ramblock_iov(p->c, p->iov, p->iovs_num, - p->pages->block, &local_err); + pages->block, &local_err); } else { ret = qio_channel_writev_full_all(p->c, p->iov, p->iovs_num, NULL, 0, p->write_flags, @@ -969,7 +969,7 @@ static void *multifd_send_thread(void *opaque) stat64_add(&mig_stats.normal_pages, pages->normal_num); stat64_add(&mig_stats.zero_pages, pages->num - pages->normal_num); - multifd_pages_reset(p->pages); + multifd_pages_reset(pages); p->next_packet_size = 0; /* @@ -1690,9 +1690,10 @@ void multifd_recv_new_channel(QIOChannel *ioc, Error **errp) bool multifd_send_prepare_common(MultiFDSendParams *p) { + MultiFDPages_t *pages = p->pages; multifd_send_zero_page_detect(p); - if (!p->pages->normal_num) { + if (!pages->normal_num) { p->next_packet_size = 0; return false; }