Hell Steve, ----- Original Message ----- > From: "Steve French" <smfrench@xxxxxxxxx> > To: "Xiaoli Feng" <xifeng@xxxxxxxxxx> > Cc: "CIFS" <linux-cifs@xxxxxxxxxxxxxxx>, "samba-technical" <samba-technical@xxxxxxxxxxxxxxx> > Sent: Monday, August 3, 2020 12:42:32 PM > Subject: Re: fallocate can't change the cifs disk space usage > > Any luck trying the same thing to Windows and/or Azure to see if this > is possible Samba bug - sounds like possible Samba server bug but need > more information. Thanks for quick response. When trying the same thing to windows. This issue is gone. fallocate can update the space usage. > > Are you using one of the Samba plug in VFS modules on the server (like > vfs_btrfs)? I'm not using any samba plug in vfs. > > What does the filesystem show (before and after) on the server side > (local file system not just the remote view that Samba is returning > for statfs) when you try the df -h? on the server side, the space usage reported by df also keep the same before and after fallocate. > > On Sun, Aug 2, 2020 at 9:55 PM Xiaoli Feng <xifeng@xxxxxxxxxx> wrote: > > > > Hello all, > > > > Recently when I'm investigating the xfstests generic/213 generic/228 > > failures for cifs. > > Found that fallocate can't change the cifs disk space usage. Comparing xfs > > fileystem, > > fallocate can update space usage. > > > > My tests is in 5.8.0-rc7+. I also file a bug for this issue. > > https://bugzilla.kernel.org/show_bug.cgi?id=208775 > > > > # cat /etc/samba/smb.conf > > [cifs] > > path=/mnt/cifs > > writeable=yes > > # mount //localhost/cifs cifs -o > > user=root,password=redhat,cache=none,actimeo=0 > > # df -h cifs > > Filesystem Size Used Avail Use% Mounted on > > //localhost/cifs 36G 23G 13G 66% /root/cifs > > # fallocate -o 0 -l 2g /root/cifs/file1 > > # df -h cifs > > Filesystem Size Used Avail Use% Mounted on > > //localhost/cifs 36G 23G 13G 66% /root/cifs > > ]# ls -l cifs > > total 1 > > -rwxr-xr-x. 1 root root 2147483648 Aug 2 21:57 file1 > > > > Thanks. > > > > -- > > Best regards! > > XiaoLi Feng 冯小丽 > > > > > -- > Thanks, > > Steve > >
