tree add477fbbb621a637f4b3cd163d6b68ff40dfc64
parent 00acb28d96746f78389f23a7b5309a917b45c12f
author Darrick J. Wong <djwong@kernel.org> 1713218050 -0700
committer Darrick J. Wong <djwong@kernel.org> 1713218050 -0700

xfs: create a new helper to return a file's allocation unit

Create a new helper function to calculate the fundamental allocation
unit (i.e. the smallest unit of space we can allocate) of a file.
Things are going to get hairy with range-exchange on the realtime
device, so prepare for this now.

Remove the static attribute from xfs_is_falloc_aligned since the next
patch will need it.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>