erofs: clean up z_erofs_pcluster_readmore()

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`end` parameter is no needed since it's pointless for !backmost, we can
handle it with backmost internally.  And we only expand the trailing
edge, so the newstart can be replaced with ->headoffset.

Also, remove linux/prefetch.h inclusion since that is not used anymore
after commit 386292919c ("erofs: introduce readmore decompression
strategy").

Signed-off-by: Yue Hu <huyue2@coolpad.com>
Reviewed-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Link: https://lore.kernel.org/r/20230525072605.17857-1-zbestahu@gmail.com
[ Gao Xiang: update commit description. ]
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>

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Yue Hu 2023-05-25 15:26:05 +08:00 • committed by Gao Xiang

parent ef4b4b46c6

commit 796e9149a2

1 changed files with 12 additions and 15 deletions

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fs/erofs/zdata.c

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