qemu-kvm/kvm-multifd-Remove-send_write-method.patch

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From 2952487c7e5ed14796fbffae0b964a35790d6850 Mon Sep 17 00:00:00 2001
From: Juan Quintela <quintela@redhat.com>
Date: Wed, 18 May 2022 02:52:24 -0300
Subject: [PATCH 14/37] multifd: Remove send_write() method
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
RH-Author: Leonardo Brás <leobras@redhat.com>
RH-MergeRequest: 191: MSG_ZEROCOPY + Multifd @ rhel8.7
RH-Commit: [14/26] 5fa59ffa09099fbc6da84e9a192ca71af52cc98f
RH-Bugzilla: 2072049
RH-Acked-by: Peter Xu <peterx@redhat.com>
RH-Acked-by: Daniel P. Berrangé <berrange@redhat.com>
RH-Acked-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Everything use now iov's.
Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
(cherry picked from commit 468fcb5dd0c965e1af0da9efab09b1462631da18)
Signed-off-by: Leonardo Bras <leobras@redhat.com>
---
migration/multifd-zlib.c | 17 -----------------
migration/multifd-zstd.c | 17 -----------------
migration/multifd.c | 20 ++------------------
migration/multifd.h | 2 --
4 files changed, 2 insertions(+), 54 deletions(-)
diff --git a/migration/multifd-zlib.c b/migration/multifd-zlib.c
index 96475e096e..8ed29b9633 100644
--- a/migration/multifd-zlib.c
+++ b/migration/multifd-zlib.c
@@ -154,22 +154,6 @@ static int zlib_send_prepare(MultiFDSendParams *p, Error **errp)
return 0;
}
-/**
- * zlib_send_write: do the actual write of the data
- *
- * Do the actual write of the comprresed buffer.
- *
- * 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_write(MultiFDSendParams *p, uint32_t used, Error **errp)
-{
- return qio_channel_writev_all(p->c, p->iov, p->iovs_num, errp);
-}
-
/**
* zlib_recv_setup: setup receive side
*
@@ -312,7 +296,6 @@ static MultiFDMethods multifd_zlib_ops = {
.send_setup = zlib_send_setup,
.send_cleanup = zlib_send_cleanup,
.send_prepare = zlib_send_prepare,
- .send_write = zlib_send_write,
.recv_setup = zlib_recv_setup,
.recv_cleanup = zlib_recv_cleanup,
.recv_pages = zlib_recv_pages
diff --git a/migration/multifd-zstd.c b/migration/multifd-zstd.c
index 4e60cdbc54..25e1f517b5 100644
--- a/migration/multifd-zstd.c
+++ b/migration/multifd-zstd.c
@@ -165,22 +165,6 @@ static int zstd_send_prepare(MultiFDSendParams *p, Error **errp)
return 0;
}
-/**
- * zstd_send_write: do the actual write of the data
- *
- * Do the actual write of the comprresed buffer.
- *
- * 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_write(MultiFDSendParams *p, uint32_t used, Error **errp)
-{
- return qio_channel_writev_all(p->c, p->iov, p->iovs_num, errp);
-}
-
/**
* zstd_recv_setup: setup receive side
*
@@ -325,7 +309,6 @@ static MultiFDMethods multifd_zstd_ops = {
.send_setup = zstd_send_setup,
.send_cleanup = zstd_send_cleanup,
.send_prepare = zstd_send_prepare,
- .send_write = zstd_send_write,
.recv_setup = zstd_recv_setup,
.recv_cleanup = zstd_recv_cleanup,
.recv_pages = zstd_recv_pages
diff --git a/migration/multifd.c b/migration/multifd.c
index 5004f394aa..1e1551d78b 100644
--- a/migration/multifd.c
+++ b/migration/multifd.c
@@ -100,22 +100,6 @@ static int nocomp_send_prepare(MultiFDSendParams *p, Error **errp)
return 0;
}
-/**
- * nocomp_send_write: do the actual write of the data
- *
- * For no compression we just have to write the data.
- *
- * 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_write(MultiFDSendParams *p, uint32_t used, Error **errp)
-{
- return qio_channel_writev_all(p->c, p->iov, p->iovs_num, errp);
-}
-
/**
* nocomp_recv_setup: setup receive side
*
@@ -173,7 +157,6 @@ static MultiFDMethods multifd_nocomp_ops = {
.send_setup = nocomp_send_setup,
.send_cleanup = nocomp_send_cleanup,
.send_prepare = nocomp_send_prepare,
- .send_write = nocomp_send_write,
.recv_setup = nocomp_recv_setup,
.recv_cleanup = nocomp_recv_cleanup,
.recv_pages = nocomp_recv_pages
@@ -687,7 +670,8 @@ static void *multifd_send_thread(void *opaque)
}
if (used) {
- ret = multifd_send_state->ops->send_write(p, used, &local_err);
+ ret = qio_channel_writev_all(p->c, p->iov, p->iovs_num,
+ &local_err);
if (ret != 0) {
break;
}
diff --git a/migration/multifd.h b/migration/multifd.h
index c3f18af364..7496f951a7 100644
--- a/migration/multifd.h
+++ b/migration/multifd.h
@@ -164,8 +164,6 @@ typedef struct {
void (*send_cleanup)(MultiFDSendParams *p, Error **errp);
/* Prepare the send packet */
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 */
int (*recv_setup)(MultiFDRecvParams *p, Error **errp);
/* Cleanup for receiving side */
--
2.35.3