Re: [PATCH 0/3] Compression fixes for ntfs3

[Konstantin Komarov <almaz.alexandrovich@paragon-software.com>]

On 7/18/25 21:53, Matthew Wilcox (Oracle) wrote:

> Hi Konstantin,
>
> I found three problems with the NTFS (de)compression code.  The
> first two are simple inefficiencies; there's no need to kmap these
> pages.  The third looks like a potential data corruption (description
> in the patch).  I've marked the third one for backport.
>
> I haven't tested any of this; it could be that my analysis is wrong.
>
> Matthew Wilcox (Oracle) (3):
>    ntfs: Do not kmap pages used for reading from disk
>    ntfs: Do not kmap page cache pages for compression
>    ntfs: Do not overwrite uptodate pages
>
>   fs/ntfs3/frecord.c | 50 +++++++++++++++++++++++++++-------------------
>   1 file changed, 29 insertions(+), 21 deletions(-)
>
Hello,

Thanks for the patches. They have been applied and will go out with the
next pull request.

Regards,
Konstantin