diff options
| author | Leonardo Bras <leobras@redhat.com> | 2022-06-20 02:39:43 -0300 |
|---|---|---|
| committer | Dr. David Alan Gilbert <dgilbert@redhat.com> | 2022-06-22 17:22:28 +0100 |
| commit | 4f5a09714c983a3471fd12e3c7f3196e95c650c1 (patch) | |
| tree | 38d4379e621502af08525c00928d000b254cc717 /target/sparc/mmu_helper.c | |
| parent | 803ca43e4c7fcf32f9f68c118301ccd0c83ece3f (diff) | |
QIOChannelSocket: Fix zero-copy send so socket flush works
Somewhere between v6 and v7 the of the zero-copy-send patchset a crucial
part of the flushing mechanism got missing: incrementing zero_copy_queued.
Without that, the flushing interface becomes a no-op, and there is no
guarantee the buffer is really sent.
This can go as bad as causing a corruption in RAM during migration.
Fixes: 2bc58ffc2926 ("QIOChannelSocket: Implement io_writev zero copy flag & io_flush for CONFIG_LINUX")
Reported-by: 徐闯 <xuchuangxclwt@bytedance.com>
Signed-off-by: Leonardo Bras <leobras@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Diffstat (limited to 'target/sparc/mmu_helper.c')
0 files changed, 0 insertions, 0 deletions