在 2025/3/15 17:02, Herbert Xu 写道:
On Sat, Mar 15, 2025 at 04:58:31PM +0800, Zhihao Cheng wrote:
Hi, Herbert, I got some warning messages while running xfstests, it looks
like the compressor returns error code.
Yes this is expected as incompressible data will now show up as
errors since we reduced the output buffer size due to LZO getting
fixed. I'll silence that warning.
According to the warning message, current compressor is zstd. The output
buffer size is limited only for LZO compressor by [1].
ubifs_compress_req [ubifs]: cannot compress 4096 bytes, compressor zstd,
error -22, leave data uncompressed
[1]
https://web.git.kernel.org/pub/scm/linux/kernel/git/herbert/cryptodev-2.6.git/commit/?id=cc47f07234f72cbd8e2c973cdbf2a6730660a463
There are no reasons why compression should fail, other than the
data being incompressible.
Thanks,
