From 8cdedf86dc193673ea24516e7b44f8b4da5dd713 Mon Sep 17 00:00:00 2001 From: Juan Quintela Date: Wed, 18 May 2022 02:52:23 -0300 Subject: [PATCH 06/37] multifd: remove used parameter from send_recv_pages() 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: [6/26] 5c1a506e4178501a0894ea4e7ac919e1d4d4cc32 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 40a4bfe9d3f8ad35a9c3ffb4cbf7367e2777054b) Signed-off-by: Leonardo Bras --- migration/multifd-zlib.c | 9 ++++----- migration/multifd-zstd.c | 7 +++---- migration/multifd.c | 7 +++---- migration/multifd.h | 2 +- 4 files changed, 11 insertions(+), 14 deletions(-) diff --git a/migration/multifd-zlib.c b/migration/multifd-zlib.c index 0c70a2dc78..330fc021c5 100644 --- a/migration/multifd-zlib.c +++ b/migration/multifd-zlib.c @@ -235,17 +235,16 @@ static void zlib_recv_cleanup(MultiFDRecvParams *p) * 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_recv_pages(MultiFDRecvParams *p, uint32_t used, Error **errp) +static int zlib_recv_pages(MultiFDRecvParams *p, Error **errp) { struct zlib_data *z = p->data; z_stream *zs = &z->zs; uint32_t in_size = p->next_packet_size; /* we measure the change of total_out */ uint32_t out_size = zs->total_out; - uint32_t expected_size = used * qemu_target_page_size(); + uint32_t expected_size = p->pages->num * qemu_target_page_size(); uint32_t flags = p->flags & MULTIFD_FLAG_COMPRESSION_MASK; int ret; int i; @@ -264,12 +263,12 @@ static int zlib_recv_pages(MultiFDRecvParams *p, uint32_t used, Error **errp) zs->avail_in = in_size; zs->next_in = z->zbuff; - for (i = 0; i < used; i++) { + for (i = 0; i < p->pages->num; i++) { struct iovec *iov = &p->pages->iov[i]; int flush = Z_NO_FLUSH; unsigned long start = zs->total_out; - 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 466b370cad..f0d1105792 100644 --- a/migration/multifd-zstd.c +++ b/migration/multifd-zstd.c @@ -255,14 +255,13 @@ static void zstd_recv_cleanup(MultiFDRecvParams *p) * 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_recv_pages(MultiFDRecvParams *p, uint32_t used, Error **errp) +static int zstd_recv_pages(MultiFDRecvParams *p, Error **errp) { uint32_t in_size = p->next_packet_size; uint32_t out_size = 0; - uint32_t expected_size = used * qemu_target_page_size(); + uint32_t expected_size = p->pages->num * qemu_target_page_size(); uint32_t flags = p->flags & MULTIFD_FLAG_COMPRESSION_MASK; struct zstd_data *z = p->data; int ret; @@ -283,7 +282,7 @@ static int zstd_recv_pages(MultiFDRecvParams *p, uint32_t used, Error **errp) z->in.size = in_size; z->in.pos = 0; - for (i = 0; i < used; i++) { + for (i = 0; i < p->pages->num; i++) { struct iovec *iov = &p->pages->iov[i]; z->out.dst = iov->iov_base; diff --git a/migration/multifd.c b/migration/multifd.c index 098ef8842c..55d99a8232 100644 --- a/migration/multifd.c +++ b/migration/multifd.c @@ -141,10 +141,9 @@ static void nocomp_recv_cleanup(MultiFDRecvParams *p) * 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_recv_pages(MultiFDRecvParams *p, uint32_t used, Error **errp) +static int nocomp_recv_pages(MultiFDRecvParams *p, Error **errp) { uint32_t flags = p->flags & MULTIFD_FLAG_COMPRESSION_MASK; @@ -153,7 +152,7 @@ static int nocomp_recv_pages(MultiFDRecvParams *p, uint32_t used, Error **errp) p->id, flags, MULTIFD_FLAG_NOCOMP); return -1; } - return qio_channel_readv_all(p->c, p->pages->iov, used, errp); + return qio_channel_readv_all(p->c, p->pages->iov, p->pages->num, errp); } static MultiFDMethods multifd_nocomp_ops = { @@ -1099,7 +1098,7 @@ static void *multifd_recv_thread(void *opaque) qemu_mutex_unlock(&p->mutex); if (used) { - ret = multifd_recv_state->ops->recv_pages(p, used, &local_err); + ret = multifd_recv_state->ops->recv_pages(p, &local_err); if (ret != 0) { break; } diff --git a/migration/multifd.h b/migration/multifd.h index 7968cc5c20..e57adc783b 100644 --- a/migration/multifd.h +++ b/migration/multifd.h @@ -167,7 +167,7 @@ typedef struct { /* Cleanup for receiving side */ void (*recv_cleanup)(MultiFDRecvParams *p); /* Read all pages */ - int (*recv_pages)(MultiFDRecvParams *p, uint32_t used, Error **errp); + int (*recv_pages)(MultiFDRecvParams *p, Error **errp); } MultiFDMethods; void multifd_register_ops(int method, MultiFDMethods *ops); -- 2.35.3