The should_alloc_chunk code has math in it to decide if we're getting
short on space and if we should go ahead and pre-emptively allocate a
new chunk. Previously when we did not have the delayed_refs_rsv, we had
to assume that the global block rsv was essentially used space and could
be allocated
On 21.11.18 г. 21:03 ч., Josef Bacik wrote:
> We've done this forever because of the voodoo around knowing how much
> space we have. However we have better ways of doing this now, and on
> normal file systems we'll easily have a global reserve of 512MiB, and
> since metadata chunks are usually
We've done this forever because of the voodoo around knowing how much
space we have. However we have better ways of doing this now, and on
normal file systems we'll easily have a global reserve of 512MiB, and
since metadata chunks are usually 1GiB that means we'll allocate
metadata chunks more
