erofs: convert z_erofs_onlinepage_.* to folios

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Online folios are locked file-backed folios which will eventually
keep decoded (e.g. decompressed) data of each inode for end users to
utilize.  It may belong to a few pclusters and contain other data (e.g.
compressed data for inplace I/Os) temporarily in a time-sharing manner
to reduce memory footprints for low-ended storage devices with high
latencies under heary I/O pressure.

Apart from folio_end_read() usage, it's a straight-forward conversion.

Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Link: https://lore.kernel.org/r/20240305091448.1384242-1-hsiangkao@linux.alibaba.com

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Gao Xiang 2024-03-05 17:14:43 +08:00

parent 90d35da658

commit d136d33586

1 changed files with 22 additions and 28 deletions

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fs/erofs/zdata.c

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