OK. Thx. But fsync is too slow. I try to find a way to sync a range of file. Are there any solutions to meet my purpose? Thanks Tianyu Lan -----Original Message----- From: Sasha Levin [mailto:levinsasha928@xxxxxxxxx] Sent: Sunday, November 20, 2011 12:27 AM To: Lan, Tianyu Cc: Kevin Wolf; penberg@xxxxxxxxxx; kvm@xxxxxxxxxxxxxxx; asias.hejun@xxxxxxxxx; prasadjoshi124@xxxxxxxxx Subject: RE: [RFC v2 PATCH] kvm tools, qcow: Add the support for copy-on-write clusters On Sat, 2011-11-19 at 23:30 +0800, Lan, Tianyu wrote: > How about using the sync_file_range to sync the metadata? sync_file_range() is only a hint, it doesn't actually assure anything. -- Sasha. -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
