ntfs: support large pages in compressed writes

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ntfs_compress_write() derives its page count by shifting the compression
block size and assumes that every compression block begins at a page
boundary. This produces a zero page count for small compression blocks on
large-page systems and ignores an in-page compression block offset.

Map every page covering the compression block, pass the in-page offset to
ntfs_write_cb(), and stage uncompressed output in page-aligned pages.

Reviewed-by: Hyunchul Lee <hyc.lee@gmail.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>

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Namjae Jeon 2026-07-21 11:57:36 +09:00

parent 3e497af637

commit f2b2aeeaad

1 changed files with 22 additions and 11 deletions

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fs/ntfs/compress.c

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