diff options
| author | Denis V. Lunev <den@openvz.org> | 2020-07-03 19:11:24 +0300 |
|---|---|---|
| committer | Juan Quintela <quintela@redhat.com> | 2020-07-13 18:15:35 +0200 |
| commit | 66270a475cb81f24b53c8cc9ccaf152baf6bb10f (patch) | |
| tree | c4dc39f7f2e59cc56fcd76eab6ac69c2725b667a /migration | |
| parent | 9728ebfb77f0159f4c358103ac4b49a72109d972 (diff) | |
migration/savevm: respect qemu_fclose() error code in save_snapshot()
qemu_fclose() could return error, f.e. if bdrv_co_flush() will return
the error.
This validation will become more important once we will start waiting of
asynchronous IO operations, started from bdrv_write_vmstate(), which are
coming soon.
Signed-off-by: Denis V. Lunev <den@openvz.org>
Reviewed-by: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
CC: Kevin Wolf <kwolf@redhat.com>
CC: Max Reitz <mreitz@redhat.com>
CC: Stefan Hajnoczi <stefanha@redhat.com>
CC: Fam Zheng <fam@euphon.net>
CC: Juan Quintela <quintela@redhat.com>
CC: Denis Plotnikov <dplotnikov@virtuozzo.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Diffstat (limited to 'migration')
| -rw-r--r-- | migration/savevm.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/migration/savevm.c b/migration/savevm.c index 6e01724605..45c9dd9d8a 100644 --- a/migration/savevm.c +++ b/migration/savevm.c @@ -2635,7 +2635,7 @@ int save_snapshot(const char *name, Error **errp) { BlockDriverState *bs, *bs1; QEMUSnapshotInfo sn1, *sn = &sn1, old_sn1, *old_sn = &old_sn1; - int ret = -1; + int ret = -1, ret2; QEMUFile *f; int saved_vm_running; uint64_t vm_state_size; @@ -2719,10 +2719,14 @@ int save_snapshot(const char *name, Error **errp) } ret = qemu_savevm_state(f, errp); vm_state_size = qemu_ftell(f); - qemu_fclose(f); + ret2 = qemu_fclose(f); if (ret < 0) { goto the_end; } + if (ret2 < 0) { + ret = ret2; + goto the_end; + } /* The bdrv_all_create_snapshot() call that follows acquires the AioContext * for itself. BDRV_POLL_WHILE() does not support nested locking because |