Am Di., 10. Sept. 2024 um 09:51 Uhr schrieb Chandan Babu R
<chandanbabu@xxxxxxxxxx>:
>
> On Mon, Sep 09, 2024 at 05:56:11 PM +0200, Alexander Mikhalitsyn wrote:
> > Dear Chandan,
> >
> > Please can you check if the following patch resolves issue for your workload:
> >
> > diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
> > index 7885f071fa1e..f130b23d6850 100644
> > --- a/fs/fuse/dev.c
> > +++ b/fs/fuse/dev.c
> > @@ -148,7 +148,7 @@ static struct fuse_req *fuse_get_req(struct
> > mnt_idmap *idmap,
> > if (for_background)
> > __set_bit(FR_BACKGROUND, &req->flags);
> >
> > - if ((fm->sb->s_iflags & SB_I_NOIDMAP) || idmap) {
> > + if (!fm->sb || (fm->sb->s_iflags & SB_I_NOIDMAP) || idmap) {
> > kuid_t idmapped_fsuid;
> > kgid_t idmapped_fsgid;
> >
> > From your call stack if looks caused by CUSE case.
> > It's my bad that I have not considered this use case for
> > fuse_get_req() and there is, obviously,
> > no such thing as fm->sb for CUSE scenario.
> >
>
> The above patch solves the problem. Thank you!
Awesome! Thanks, Chandan!
I'll send a patch to LKML a bit later once Miklos take
https://lore.kernel.org/linux-fsdevel/20240906143453.179506-1-aleksandr.mikhalitsyn@xxxxxxxxxxxxx
series.
Kind regards,
Alex
>
> --
> Chandan
