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block: Move I/O status and error actions into BB

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These options are only relevant for the user of a whole BDS tree (like a
guest device or a block job) and should thus be moved into the
BlockBackend.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Max Reitz 2015-10-19 17:53:22 +02:00 • committed by Kevin Wolf
parent 7f0e9da6f1
commit 373340b26c
13 changed files with 158 additions and 168 deletions
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17
block/backup.c
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@ -21,6 +21,7 @@
#include "block/blockjob.h"
#include "qapi/qmp/qerror.h"
#include "qemu/ratelimit.h"
#include "sysemu/block-backend.h"
#define BACKUP_CLUSTER_BITS 16
#define BACKUP_CLUSTER_SIZE (1 << BACKUP_CLUSTER_BITS)
@ -215,7 +216,9 @@ static void backup_iostatus_reset(BlockJob *job)
{
BackupBlockJob *s = container_of(job, BackupBlockJob, common);
bdrv_iostatus_reset(s->target);
if (s->target->blk) {
blk_iostatus_reset(s->target->blk);
}
}
static const BlockJobDriver backup_job_driver = {
@ -360,8 +363,10 @@ static void coroutine_fn backup_run(void *opaque)
job->bitmap = hbitmap_alloc(end, 0);
bdrv_set_enable_write_cache(target, true);
bdrv_set_on_error(target, on_target_error, on_target_error);
bdrv_iostatus_enable(target);
if (target->blk) {
blk_set_on_error(target->blk, on_target_error, on_target_error);
blk_iostatus_enable(target->blk);
}
bdrv_add_before_write_notifier(bs, &before_write);
@ -451,7 +456,9 @@ static void coroutine_fn backup_run(void *opaque)
}
hbitmap_free(job->bitmap);
bdrv_iostatus_disable(target);
if (target->blk) {
blk_iostatus_disable(target->blk);
}
bdrv_op_unblock_all(target, job->common.blocker);
data = g_malloc(sizeof(*data));
@ -480,7 +487,7 @@ void backup_start(BlockDriverState *bs, BlockDriverState *target,
if ((on_source_error == BLOCKDEV_ON_ERROR_STOP ||
on_source_error == BLOCKDEV_ON_ERROR_ENOSPC) &&
!bdrv_iostatus_is_enabled(bs)) {
(!bs->blk || !blk_iostatus_is_enabled(bs->blk))) {
error_setg(errp, QERR_INVALID_PARAMETER, "on-source-error");
return;
}