Re: [PATCH 0/2] block/fuse: Let PUNCH_HOLE write zeroes

[Kevin Wolf]

Am 27.02.2023 um 11:47 hat Hanna Czenczek geschrieben:
> Hi,
> 
> https://gitlab.com/qemu-project/qemu/-/issues/1507 reports a bug in FUSE
> exports: fallocate(PUNCH_HOLE) is implemented with blk_pdiscard(), but
> its man page documents that a successful call will result in the data
> being read as zero.  blk_pdiscard() does not guarantee this, so we must
> use blk_pwrite_zeroes() instead (with MAY_UNMAP | NO_FALLBACK, which
> differentiates it from fallocate(ZERO_RANGE)).
> 
> Patch 2 adds a regression test.

Thanks, applied to the block branch.

Kevin