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migration/multifd: Replace p->pages with an union pointer

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We want multifd to be able to handle more types of data than just ram
pages. To start decoupling multifd from pages, replace p->pages
(MultiFDPages_t) with the new type MultiFDSendData that hides the
client payload inside an union.

The general idea here is to isolate functions that *need* to handle
MultiFDPages_t and move them in the future to multifd-ram.c, while
multifd.c will stay with only the core functions that handle
MultiFDSendData/MultiFDRecvData.

Reviewed-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Fabiano Rosas <farosas@suse.de>
This commit is contained in:
Fabiano Rosas 2024-08-27 14:45:54 -03:00
parent 0e427da096
commit 9f0e108901
7 changed files with 57 additions and 47 deletions
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6
migration/multifd-qpl.c
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@ -406,7 +406,7 @@ retry:
static void multifd_qpl_compress_pages_slow_path(MultiFDSendParams *p)
{
QplData *qpl = p->compress_data;
MultiFDPages_t *pages = p->pages;
MultiFDPages_t *pages = &p->data->u.ram;
uint32_t size = p->page_size;
qpl_job *job = qpl->sw_job;
uint8_t *zbuf = qpl->zbuf;
@ -437,7 +437,7 @@ static void multifd_qpl_compress_pages_slow_path(MultiFDSendParams *p)
static void multifd_qpl_compress_pages(MultiFDSendParams *p)
{
QplData *qpl = p->compress_data;
MultiFDPages_t *pages = p->pages;
MultiFDPages_t *pages = &p->data->u.ram;
uint32_t size = p->page_size;
QplHwJob *hw_job;
uint8_t *buf;
@ -501,7 +501,7 @@ static void multifd_qpl_compress_pages(MultiFDSendParams *p)
static int multifd_qpl_send_prepare(MultiFDSendParams *p, Error **errp)
{
QplData *qpl = p->compress_data;
MultiFDPages_t *pages = p->pages;
MultiFDPages_t *pages = &p->data->u.ram;
uint32_t len = 0;
if (!multifd_send_prepare_common(p)) {