From 5f53448092c944857a2b89138f22c5ab335d8250 Mon Sep 17 00:00:00 2001 From: Juan Quintela Date: Wed, 18 May 2022 02:52:23 -0300 Subject: [PATCH 05/37] multifd: remove used parameter from send_prepare() method MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit RH-Author: Leonardo Brás RH-MergeRequest: 191: MSG_ZEROCOPY + Multifd @ rhel8.7 RH-Commit: [5/26] ad6360d19d65e8c332dcdc3d3234478639e03db8 RH-Bugzilla: 2072049 RH-Acked-by: Peter Xu RH-Acked-by: Daniel P. Berrangé RH-Acked-by: Dr. David Alan Gilbert It is already there as p->pages->num. Signed-off-by: Juan Quintela Reviewed-by: Dr. David Alan Gilbert (cherry picked from commit 02fb81043ecee338e4aeb8f5be09a46325dc5e43) Signed-off-by: Leonardo Bras --- migration/multifd-zlib.c | 7 +++---- migration/multifd-zstd.c | 7 +++---- migration/multifd.c | 9 +++------ migration/multifd.h | 2 +- 4 files changed, 10 insertions(+), 15 deletions(-) diff --git a/migration/multifd-zlib.c b/migration/multifd-zlib.c index f403d2f031..0c70a2dc78 100644 --- a/migration/multifd-zlib.c +++ b/migration/multifd-zlib.c @@ -96,10 +96,9 @@ static void zlib_send_cleanup(MultiFDSendParams *p, Error **errp) * Returns 0 for success or -1 for error * * @p: Params for the channel that we are using - * @used: number of pages used * @errp: pointer to an error */ -static int zlib_send_prepare(MultiFDSendParams *p, uint32_t used, Error **errp) +static int zlib_send_prepare(MultiFDSendParams *p, Error **errp) { struct iovec *iov = p->pages->iov; struct zlib_data *z = p->data; @@ -108,11 +107,11 @@ static int zlib_send_prepare(MultiFDSendParams *p, uint32_t used, Error **errp) int ret; uint32_t i; - for (i = 0; i < used; i++) { + for (i = 0; i < p->pages->num; i++) { uint32_t available = z->zbuff_len - out_size; int flush = Z_NO_FLUSH; - if (i == used - 1) { + if (i == p->pages->num - 1) { flush = Z_SYNC_FLUSH; } diff --git a/migration/multifd-zstd.c b/migration/multifd-zstd.c index 8d657f8860..466b370cad 100644 --- a/migration/multifd-zstd.c +++ b/migration/multifd-zstd.c @@ -109,10 +109,9 @@ static void zstd_send_cleanup(MultiFDSendParams *p, Error **errp) * Returns 0 for success or -1 for error * * @p: Params for the channel that we are using - * @used: number of pages used * @errp: pointer to an error */ -static int zstd_send_prepare(MultiFDSendParams *p, uint32_t used, Error **errp) +static int zstd_send_prepare(MultiFDSendParams *p, Error **errp) { struct iovec *iov = p->pages->iov; struct zstd_data *z = p->data; @@ -123,10 +122,10 @@ static int zstd_send_prepare(MultiFDSendParams *p, uint32_t used, Error **errp) z->out.size = z->zbuff_len; z->out.pos = 0; - for (i = 0; i < used; i++) { + for (i = 0; i < p->pages->num; i++) { ZSTD_EndDirective flush = ZSTD_e_continue; - if (i == used - 1) { + if (i == p->pages->num - 1) { flush = ZSTD_e_flush; } z->in.src = iov[i].iov_base; diff --git a/migration/multifd.c b/migration/multifd.c index ce7101cf9d..098ef8842c 100644 --- a/migration/multifd.c +++ b/migration/multifd.c @@ -82,13 +82,11 @@ static void nocomp_send_cleanup(MultiFDSendParams *p, Error **errp) * Returns 0 for success or -1 for error * * @p: Params for the channel that we are using - * @used: number of pages used * @errp: pointer to an error */ -static int nocomp_send_prepare(MultiFDSendParams *p, uint32_t used, - Error **errp) +static int nocomp_send_prepare(MultiFDSendParams *p, Error **errp) { - p->next_packet_size = used * qemu_target_page_size(); + p->next_packet_size = p->pages->num * qemu_target_page_size(); p->flags |= MULTIFD_FLAG_NOCOMP; return 0; } @@ -654,8 +652,7 @@ static void *multifd_send_thread(void *opaque) uint32_t flags = p->flags; if (used) { - ret = multifd_send_state->ops->send_prepare(p, used, - &local_err); + ret = multifd_send_state->ops->send_prepare(p, &local_err); if (ret != 0) { qemu_mutex_unlock(&p->mutex); break; diff --git a/migration/multifd.h b/migration/multifd.h index 86820dd028..7968cc5c20 100644 --- a/migration/multifd.h +++ b/migration/multifd.h @@ -159,7 +159,7 @@ typedef struct { /* Cleanup for sending side */ void (*send_cleanup)(MultiFDSendParams *p, Error **errp); /* Prepare the send packet */ - int (*send_prepare)(MultiFDSendParams *p, uint32_t used, Error **errp); + int (*send_prepare)(MultiFDSendParams *p, Error **errp); /* Write the send packet */ int (*send_write)(MultiFDSendParams *p, uint32_t used, Error **errp); /* Setup for receiving side */ -- 2.35.3