xfs: document the XFS_ALLOC_AGFL_RESERVE constant
Currently, we use this undocumented macro to encode the minimum number of blocks needed to replenish a completely empty AGFL when an AG is nearly full. This has lead to confusion on the part of the maintainers, so let's document what the value actually means, and move it to xfs_alloc.c since it's not used outside of that module. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Dave Chinner <dchinner@redhat.com>
parent
01728b44
Please register or sign in to comment