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| author | Leonardo Bras <leobras@redhat.com> | 2022-07-11 18:11:11 -0300 |
|---|---|---|
| committer | Dr. David Alan Gilbert <dgilbert@redhat.com> | 2022-07-20 12:15:09 +0100 |
| commit | 927f93e099c4f9184e60a1bc61624ac2d04d0223 (patch) | |
| tree | fdc23458934876fe4fe162689be5004f2ee75981 /qapi | |
| parent | 5f87072e9532a92e6270577665aa2fa659ec0b3f (diff) | |
| download | qemu-927f93e099c4f9184e60a1bc61624ac2d04d0223.zip qemu-927f93e099c4f9184e60a1bc61624ac2d04d0223.tar.gz qemu-927f93e099c4f9184e60a1bc61624ac2d04d0223.tar.bz2 | |
QIOChannelSocket: Fix zero-copy flush returning code 1 when nothing sent
If flush is called when no buffer was sent with MSG_ZEROCOPY, it currently
returns 1. This return code should be used only when Linux fails to use
MSG_ZEROCOPY on a lot of sendmsg().
Fix this by returning early from flush if no sendmsg(...,MSG_ZEROCOPY)
was attempted.
Fixes: 2bc58ffc2926 ("QIOChannelSocket: Implement io_writev zero copy flag & io_flush for CONFIG_LINUX")
Signed-off-by: Leonardo Bras <leobras@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Acked-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Message-Id: <20220711211112.18951-2-leobras@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Diffstat (limited to 'qapi')
0 files changed, 0 insertions, 0 deletions