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block-migration: make flush_blks() return errors 

This means we don't need to pass through qemu_file to get the errors.
Adjust all callers.

Signed-off-by: Juan Quintela <quintela@redhat.com>

Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Juan Quintela 2012-08-29 20:17:13 +02:00
parent 81fdf640e4
commit 59feec4247
1 changed files with 8 additions and 14 deletions
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22
block-migration.c
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@ -444,9 +444,10 @@ static int blk_mig_save_dirty_block(QEMUFile *f, int is_async)
return ret; return ret;
} }
static void flush_blks(QEMUFile* f) static int flush_blks(QEMUFile *f)
{ {
BlkMigBlock *blk; BlkMigBlock *blk;
int ret = 0;
DPRINTF("%s Enter submitted %d read_done %d transferred %d\n", DPRINTF("%s Enter submitted %d read_done %d transferred %d\n",
__FUNCTION__, block_mig_state.submitted, block_mig_state.read_done, __FUNCTION__, block_mig_state.submitted, block_mig_state.read_done,
@ -457,7 +458,7 @@ static void flush_blks(QEMUFile* f)
break; break;
} }
if (blk->ret < 0) { if (blk->ret < 0) {
qemu_file_set_error(f, blk->ret); ret = blk->ret;
break; break;
} }
blk_send(f, blk); blk_send(f, blk);
@ -474,6 +475,7 @@ static void flush_blks(QEMUFile* f)
DPRINTF("%s Exit submitted %d read_done %d transferred %d\n", __FUNCTION__, DPRINTF("%s Exit submitted %d read_done %d transferred %d\n", __FUNCTION__,
block_mig_state.submitted, block_mig_state.read_done, block_mig_state.submitted, block_mig_state.read_done,
block_mig_state.transferred); block_mig_state.transferred);
return ret;
} }
static int64_t get_remaining_dirty(void) static int64_t get_remaining_dirty(void)
@ -555,9 +557,7 @@ static int block_save_setup(QEMUFile *f, void *opaque)
/* start track dirty blocks */ /* start track dirty blocks */
set_dirty_tracking(1); set_dirty_tracking(1);
flush_blks(f); ret = flush_blks(f);
ret = qemu_file_get_error(f);
if (ret) { if (ret) {
blk_mig_cleanup(); blk_mig_cleanup();
return ret; return ret;
@ -577,9 +577,7 @@ static int block_save_iterate(QEMUFile *f, void *opaque)
DPRINTF("Enter save live iterate submitted %d transferred %d\n", DPRINTF("Enter save live iterate submitted %d transferred %d\n",
block_mig_state.submitted, block_mig_state.transferred); block_mig_state.submitted, block_mig_state.transferred);
flush_blks(f); ret = flush_blks(f);
ret = qemu_file_get_error(f);
if (ret) { if (ret) {
blk_mig_cleanup(); blk_mig_cleanup();
return ret; return ret;
@ -605,9 +603,7 @@ static int block_save_iterate(QEMUFile *f, void *opaque)
} }
} }
flush_blks(f); ret = flush_blks(f);
ret = qemu_file_get_error(f);
if (ret) { if (ret) {
blk_mig_cleanup(); blk_mig_cleanup();
return ret; return ret;
@ -625,9 +621,7 @@ static int block_save_complete(QEMUFile *f, void *opaque)
DPRINTF("Enter save live complete submitted %d transferred %d\n", DPRINTF("Enter save live complete submitted %d transferred %d\n",
block_mig_state.submitted, block_mig_state.transferred); block_mig_state.submitted, block_mig_state.transferred);
flush_blks(f); ret = flush_blks(f);
ret = qemu_file_get_error(f);
if (ret) { if (ret) {
blk_mig_cleanup(); blk_mig_cleanup();
return ret; return ret;