gfs2: avoid inefficient use of crc32_le_shift()

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__get_log_header() was using crc32_le_shift() to update a CRC with four
zero bytes.  However, this is about 5x slower than just CRC'ing four
zero bytes in the normal way.  Just do that instead.

(We could instead make crc32_le_shift() faster on short lengths.  But
all its callers do just fine without it, so I'd like to just remove it.)

Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>

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Eric Biggers 2025-05-11 11:31:33 -07:00 • committed by Andreas Gruenbacher

parent 87faee382d

commit b6ccde39b1

1 changed files with 2 additions and 1 deletions

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fs/gfs2/recovery.c

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