Re: [Qemu-block] [PATCH for 3.1 v9] qcow2: Document some maximum size constraints

2018-11-16 Thread Kevin Wolf
Am 15.11.2018 um 19:34 hat Eric Blake geschrieben: > Although off_t permits up to 63 bits (8EB) of file offsets, in > practice, we're going to hit other limits first. Document some > of those limits in the qcow2 spec (some are inherent, others are > implementation choices of qemu), and how choice

[Qemu-block] [PATCH for 3.1 v9] qcow2: Document some maximum size constraints

2018-11-15 Thread Eric Blake
Although off_t permits up to 63 bits (8EB) of file offsets, in practice, we're going to hit other limits first. Document some of those limits in the qcow2 spec (some are inherent, others are implementation choices of qemu), and how choice of cluster size can influence some of the limits. While