On Fri, Feb 19, 2016 at 07:08:30AM -0500, Krutika Dhananjay wrote: > I work on the GlusterFS project and we are using glusterfs as the backend > store > for VM images in our testing. There's a new feature introduced in glusterfs > which > shards a large file into multiple files. > > Now in order to implement the "fallocate" file operation for sharded files, > we need > to know all the possible flags (ex: FALLOC_FL_KEEP_SIZE) that are passed to > qemu when calling fallocate(). Could you help us on this?
cd qemu && git grep 'fallocate('
The following are used by block/raw-posix.c:
FALLOC_FL_ZERO_RANGE,
FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE,
and 0.
Stefan
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