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

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[ Upstream commit ee20808d84 ]

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>
Signed-off-by: Leah Rumancik <leah.rumancik@gmail.com>
Acked-by: "Darrick J. Wong" <djwong@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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This commit is contained in:

Darrick J. Wong 2025-06-11 14:01:17 -07:00 • committed by Greg Kroah-Hartman

parent 45cdb488dc

commit 8cd7bf0622

4 changed files with 30 additions and 20 deletions

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28

fs/xfs/xfs_file.c

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3

fs/xfs/xfs_file.h

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13

fs/xfs/xfs_inode.c

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2

fs/xfs/xfs_inode.h

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