[v4 PATCH 10/13] ubifs: Use crypto_acomp interface

[Zhihao Cheng]

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,
>