btrfs: split btrfs_direct_IO to read and write part
The read and write versions don't have anything in common except for the call to iomap_dio_rw. So split this function, and merge each half into its only caller. Signed-off-by:Christoph Hellwig <hch@lst.de> Signed-off-by:
Goldwyn Rodrigues <rgoldwyn@suse.com> Signed-off-by:
David Sterba <dsterba@suse.com>
parent
5f008163
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