xfs: remove XFS_IFEXTENTS
The in-memory XFS_IFEXTENTS is now only used to check if an inode with extents still needs the extents to be read into memory before doing operations that need the extent map. Add a new xfs_need_iread_extents helper that returns true for btree format forks that do not have any entries in the in-memory extent btree, and use that instead of checking the XFS_IFEXTENTS flag. Signed-off-by:Christoph Hellwig <hch@lst.de> Reviewed-by:
Darrick J. Wong <djwong@kernel.org> Signed-off-by:
Darrick J. Wong <djwong@kernel.org>
parent
0779f4a6
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