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xfs: port to vfs{g,u}id_t and associated helpers

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A while ago we introduced a dedicated vfs{g,u}id_t type in commit
1e5267cd08 ("mnt_idmapping: add vfs{g,u}id_t"). We already switched
over a good part of the VFS. Ultimately we will remove all legacy
idmapped mount helpers that operate only on k{g,u}id_t in favor of the
new type safe helpers that operate on vfs{g,u}id_t.

Signed-off-by: Christian Brauner (Microsoft) <brauner@kernel.org>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
This commit is contained in:
Christian Brauner 2022-09-19 06:54:14 +10:00 committed by Dave Chinner
parent b0463b9dd7
commit 42b7cc1102
3 changed files with 12 additions and 7 deletions
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5
fs/xfs/xfs_inode.c
View File

@ -835,9 +835,8 @@ xfs_init_new_inode(
* ID or one of the supplementary group IDs, the S_ISGID bit is cleared
* (and only if the irix_sgid_inherit compatibility variable is set).
*/
if (irix_sgid_inherit &&
(inode->i_mode & S_ISGID) &&
!in_group_p(i_gid_into_mnt(mnt_userns, inode)))
if (irix_sgid_inherit && (inode->i_mode & S_ISGID) &&
!vfsgid_in_group_p(i_gid_into_vfsgid(mnt_userns, inode)))
inode->i_mode &= ~S_ISGID;
ip->i_disk_size = 0;

6
fs/xfs/xfs_iops.c
View File

@ -558,6 +558,8 @@ xfs_vn_getattr(
struct inode *inode = d_inode(path->dentry);
struct xfs_inode *ip = XFS_I(inode);
struct xfs_mount *mp = ip->i_mount;
vfsuid_t vfsuid = i_uid_into_vfsuid(mnt_userns, inode);
vfsgid_t vfsgid = i_gid_into_vfsgid(mnt_userns, inode);
trace_xfs_getattr(ip);
@ -568,8 +570,8 @@ xfs_vn_getattr(
stat->dev = inode->i_sb->s_dev;
stat->mode = inode->i_mode;
stat->nlink = inode->i_nlink;
stat->uid = i_uid_into_mnt(mnt_userns, inode);
stat->gid = i_gid_into_mnt(mnt_userns, inode);
stat->uid = vfsuid_into_kuid(vfsuid);
stat->gid = vfsgid_into_kgid(vfsgid);
stat->ino = ip->i_ino;
stat->atime = inode->i_atime;
stat->mtime = inode->i_mtime;

8
fs/xfs/xfs_itable.c
View File

@ -66,6 +66,8 @@ xfs_bulkstat_one_int(
struct xfs_bulkstat *buf = bc->buf;
xfs_extnum_t nextents;
int error = -EINVAL;
vfsuid_t vfsuid;
vfsgid_t vfsgid;
if (xfs_internal_inum(mp, ino))
goto out_advance;
@ -81,14 +83,16 @@ xfs_bulkstat_one_int(
ASSERT(ip != NULL);
ASSERT(ip->i_imap.im_blkno != 0);
inode = VFS_I(ip);
vfsuid = i_uid_into_vfsuid(mnt_userns, inode);
vfsgid = i_gid_into_vfsgid(mnt_userns, inode);
/* xfs_iget returns the following without needing
* further change.
*/
buf->bs_projectid = ip->i_projid;
buf->bs_ino = ino;
buf->bs_uid = from_kuid(sb_userns, i_uid_into_mnt(mnt_userns, inode));
buf->bs_gid = from_kgid(sb_userns, i_gid_into_mnt(mnt_userns, inode));
buf->bs_uid = from_kuid(sb_userns, vfsuid_into_kuid(vfsuid));
buf->bs_gid = from_kgid(sb_userns, vfsgid_into_kgid(vfsgid));
buf->bs_size = ip->i_disk_size;
buf->bs_nlink = inode->i_nlink;