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SubjectRe: linux-next: manual merge of the pidfd tree with the xfs tree
Hi all,

On Mon, 15 Feb 2021 08:42:43 +1100 Stephen Rothwell <sfr@canb.auug.org.au> wrote:
>
> On Wed, 27 Jan 2021 11:24:41 +1100 Stephen Rothwell <sfr@canb.auug.org.au> wrote:
> >
> > On Mon, 25 Jan 2021 17:14:14 +1100 Stephen Rothwell <sfr@canb.auug.org.au> wrote:
> > >
> > > Today's linux-next merge of the pidfd tree got a conflict in:
> > >
> > > fs/xfs/xfs_inode.c
> > >
> > > between commit:
> > >
> > > 01ea173e103e ("xfs: fix up non-directory creation in SGID directories")
> > >
> > > from the xfs tree and commit:
> > >
> > > f736d93d76d3 ("xfs: support idmapped mounts")
> > >
> > > from the pidfd tree.
> > >
> > > I fixed it up (see below) and can carry the fix as necessary. This
> > > is now fixed as far as linux-next is concerned, but any non trivial
> > > conflicts should be mentioned to your upstream maintainer when your tree
> > > is submitted for merging. You may also want to consider cooperating
> > > with the maintainer of the conflicting tree to minimise any particularly
> > > complex conflicts.
> > >
> > > diff --cc fs/xfs/xfs_inode.c
> > > index e2a1db4cee43,95b7f2ba4e06..000000000000
> > > --- a/fs/xfs/xfs_inode.c
> > > +++ b/fs/xfs/xfs_inode.c
> > > @@@ -809,13 -810,13 +810,13 @@@ xfs_init_new_inode
> > > inode->i_rdev = rdev;
> > > ip->i_d.di_projid = prid;
> > >
> > > - if (pip && XFS_INHERIT_GID(pip)) {
> > > - inode->i_gid = VFS_I(pip)->i_gid;
> > > - if ((VFS_I(pip)->i_mode & S_ISGID) && S_ISDIR(mode))
> > > - inode->i_mode |= S_ISGID;
> > > + if (dir && !(dir->i_mode & S_ISGID) &&
> > > + (mp->m_flags & XFS_MOUNT_GRPID)) {
> > > + inode->i_uid = current_fsuid();
> >
> > Looking a bit harder, I replaced the above line with
> > inode->i_uid = fsuid_into_mnt(mnt_userns);
> >
> > > + inode->i_gid = dir->i_gid;
> > > + inode->i_mode = mode;
> > > } else {
> > > - inode_init_owner(inode, dir, mode);
> > > - inode->i_gid = fsgid_into_mnt(mnt_userns);
> > > ++ inode_init_owner(mnt_userns, inode, dir, mode);
> > > }
> > >
> > > /*
>
> With the merge window about to open, this is a reminder that this
> conflict still exists.

This is now a conflict between the pidfd tree and Linus' tree.

--
Cheers,
Stephen Rothwell
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