Re: [Qemu-devel] [PATCH 14/20] nbd: Support BDRV_REQ_FUA

2016-03-26 Thread Max Reitz
On 18.03.2016 19:21, Kevin Wolf wrote: > The NBD server already used to send a FUA flag when the writethrough > mode was set. This code was a remnant from the times where protocol > drivers actually had to implement writethrough modes. Since nowadays the > block layer sends flushes in writethrough

[Qemu-devel] [PATCH 14/20] nbd: Support BDRV_REQ_FUA

2016-03-19 Thread Kevin Wolf
The NBD server already used to send a FUA flag when the writethrough mode was set. This code was a remnant from the times where protocol drivers actually had to implement writethrough modes. Since nowadays the block layer sends flushes in writethrough mode and non-root nodes are always writeback, t