Re: [libvirt RFC] qemu_saveimage: only use wrapper when using --bypass-cache

align the "save" with the "restore" code, by only using the wrapper when using --bypass-cache. This avoids a copy, resulting in better performance. Signed-off-by: Claudio Fontana <cfontana(a)suse.de&gt; --- src/qemu/qemu_saveimage.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/src/qemu/qemu_saveimage.c b/src/qemu/qemu_saveimage.c index 4fd4c5cfcd..5ea1b2fbcc 100644 --- a/src/qemu/qemu_saveimage.c +++ b/src/qemu/qemu_saveimage.c @@ -289,8 +289,10 @@ qemuSaveImageCreate(virQEMUDriver *driver, if (qemuSecuritySetImageFDLabel(driver->securityManager, vm->def, fd) < 0) goto cleanup; - if (!(wrapperFd = virFileWrapperFdNew(&fd, path, wrapperFlags))) - goto cleanup; + if ((flags & VIR_DOMAIN_SAVE_BYPASS_CACHE)) { + if (!(wrapperFd = virFileWrapperFdNew(&fd, path, wrapperFlags))) + goto cleanup; + }

if (virQEMUSaveDataWrite(data, fd, path) < 0) goto cleanup; -- 2.34.1