diff options
| author | Juan Quintela <quintela@redhat.com> | 2021-11-26 10:30:32 +0100 |
|---|---|---|
| committer | Juan Quintela <quintela@redhat.com> | 2022-01-28 15:38:23 +0100 |
| commit | fc6705229cbca807f2bab9a8acf22b0ab249e55c (patch) | |
| tree | a1c2c2edc8b3b120547d4ad161a5dc3348299ab5 | |
| parent | 47fe16ff666bf1d106dd7d74e94ba2dc050b1c95 (diff) | |
multifd: Use proper maximum compression values
It happens that there are functions to calculate the worst possible
compression size for a packet. Use them.
Suggested-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
| -rw-r--r-- | migration/multifd-zlib.c | 4 | ||||
| -rw-r--r-- | migration/multifd-zstd.c | 4 |
2 files changed, 4 insertions, 4 deletions
diff --git a/migration/multifd-zlib.c b/migration/multifd-zlib.c index 9f6ebf1076..a2fec4d01d 100644 --- a/migration/multifd-zlib.c +++ b/migration/multifd-zlib.c @@ -54,8 +54,8 @@ static int zlib_send_setup(MultiFDSendParams *p, Error **errp) error_setg(errp, "multifd %u: deflate init failed", p->id); return -1; } - /* To be safe, we reserve twice the size of the packet */ - z->zbuff_len = MULTIFD_PACKET_SIZE * 2; + /* This is the maxium size of the compressed buffer */ + z->zbuff_len = compressBound(MULTIFD_PACKET_SIZE); z->zbuff = g_try_malloc(z->zbuff_len); if (!z->zbuff) { deflateEnd(&z->zs); diff --git a/migration/multifd-zstd.c b/migration/multifd-zstd.c index cc4e991724..97c08367d0 100644 --- a/migration/multifd-zstd.c +++ b/migration/multifd-zstd.c @@ -67,8 +67,8 @@ static int zstd_send_setup(MultiFDSendParams *p, Error **errp) p->id, ZSTD_getErrorName(res)); return -1; } - /* To be safe, we reserve twice the size of the packet */ - z->zbuff_len = MULTIFD_PACKET_SIZE * 2; + /* This is the maxium size of the compressed buffer */ + z->zbuff_len = ZSTD_compressBound(MULTIFD_PACKET_SIZE); z->zbuff = g_try_malloc(z->zbuff_len); if (!z->zbuff) { ZSTD_freeCStream(z->zcs); |