ntfs: reuse the compression context during writes

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ntfs_compress_block() allocates and initializes a roughly 40 KiB match
finder context for every 4 KiB sub-block. A 64 KiB compression unit thus
performs sixteen large allocations even though the calls are serialized.

Allocate one context for the complete write request and reset its hash
chains for each sub-block as before.

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 08:44:57 +09:00

parent b54559689a

commit 33200693eb

1 changed files with 13 additions and 15 deletions

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fs/ntfs/compress.c

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