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rdma: introduce qemu_update_position()

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RDMA writes happen asynchronously, and thus the performance accounting
also needs to be able to occur asynchronously. This allows anybody
to call into savevm.c to update both f->pos as well as into arch_init.c
to update the acct_info structure with up-to-date values when
the RDMA transfer actually completes.

Reviewed-by: Juan Quintela <quintela@redhat.com>
Tested-by: Chegu Vinod <chegu_vinod@hp.com>
Tested-by: Michael R. Hines <mrhines@us.ibm.com>
Signed-off-by: Michael R. Hines <mrhines@us.ibm.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
This commit is contained in:
Michael R. Hines 2013-06-25 21:35:28 -04:00 • committed by Juan Quintela
parent f4abc9d621
commit 2b0ce0797d
4 changed files with 20 additions and 0 deletions
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2
include/migration/migration.h
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@ -92,6 +92,8 @@ uint64_t ram_bytes_remaining(void);
uint64_t ram_bytes_transferred(void);
uint64_t ram_bytes_total(void);
void acct_update_position(QEMUFile *f, size_t size, bool zero);
extern SaveVMHandlers savevm_ram_handlers;
uint64_t dup_mig_bytes_transferred(void);

1
include/migration/qemu-file.h
View file

@ -93,6 +93,7 @@ void qemu_put_be32(QEMUFile *f, unsigned int v);
void qemu_put_be64(QEMUFile *f, uint64_t v);
int qemu_get_buffer(QEMUFile *f, uint8_t *buf, int size);
int qemu_get_byte(QEMUFile *f);
void qemu_update_position(QEMUFile *f, size_t size);
static inline unsigned int qemu_get_ubyte(QEMUFile *f)
{