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dax,ext2: replace ext2_clear_xip_target with dax_clear_blocks
This is practically generic code; other filesystems will want to call it from other places, but there's nothing ext2-specific about it. Make it a little more generic by allowing it to take a count of the number of bytes to zero rather than fixing it to a single page. Thanks to Dave Hansen for suggesting that I need to call cond_resched() if zeroing more than one page. Signed-off-by: Matthew Wilcox <[email protected]> Cc: Andreas Dilger <[email protected]> Cc: Boaz Harrosh <[email protected]> Cc: Christoph Hellwig <[email protected]> Cc: Dave Chinner <[email protected]> Cc: Jan Kara <[email protected]> Cc: Jens Axboe <[email protected]> Cc: Kirill A. Shutemov <[email protected]> Cc: Mathieu Desnoyers <[email protected]> Cc: Randy Dunlap <[email protected]> Cc: Ross Zwisler <[email protected]> Cc: Theodore Ts'o <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
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