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f2fs: adjust readahead block number during recovery
In a fragmented image, entries in dnode block list may locate in incontiguous physical block address space, however, in recovery flow, we will always readahead BIO_MAX_VECS size blocks, so in such case, current readahead policy is low efficient, let's adjust readahead window size dynamically based on consecutiveness of dnode blocks. Signed-off-by: Chao Yu <chao@kernel.org> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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Chao Yu
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Jaegeuk Kim
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Feb 4, 2022
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