Re: [PATCH] cifs: revalidate mapping when we open files for SMB1 POSIX

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Ronnie Sahlberg <lsahlber@xxxxxxxxxx> writes:

> RHBZ: 1933527
>
> Under SMB1 + POSIX, if an inode is reused on a server after we have read and
> cached a part of a file, when we then open the new file with the
> re-cycled inode there is a chance that we may serve the old data out of cache
> to the application.
> This only happens for SMB1 (deprecated) and when posix are used.
> The simplest solution to avoid this race is to force a revalidate
> on smb1-posix open.
>
>  Signed-off-by: Ronnie Sahlberg <lsahlber@xxxxxxxxxx>
> ---
>  fs/cifs/file.c | 1 +
>  1 file changed, 1 insertion(+)

Reviewed-by: Paulo Alcantara (SUSE) <pc@xxxxxx>



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