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authorChristoph Hellwig <hch@lst.de>2020-02-21 19:31:27 +0300
committerDarrick J. Wong <darrick.wong@oracle.com>2020-03-03 07:55:50 +0300
commitba8adad5d036733d240fa8a8f4d055f3d4490562 (patch)
tree9e5bc277ad4488f57327b7d6f67aafa6bbe681c9 /fs/xfs/xfs_qm.c
parent542951592c99ff7b15c050954c051dd6dd6c0f97 (diff)
downloadlinux-ba8adad5d036733d240fa8a8f4d055f3d4490562.tar.xz
xfs: remove the kuid/kgid conversion wrappers
Remove the XFS wrappers for converting from and to the kuid/kgid types. Mostly this means switching to VFS i_{u,g}id_{read,write} helpers, but in a few spots the calls to the conversion functions is open coded. To match the use of sb->s_user_ns in the helpers and other file systems, sb->s_user_ns is also used in the quota code. The ACL code already does the conversion in a grotty layering violation in the VFS xattr code, so it keeps using init_user_ns for the identity mapping. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Diffstat (limited to 'fs/xfs/xfs_qm.c')
-rw-r--r--fs/xfs/xfs_qm.c23
1 files changed, 9 insertions, 14 deletions
diff --git a/fs/xfs/xfs_qm.c b/fs/xfs/xfs_qm.c
index 54dda7d982c9..de1d2c606c14 100644
--- a/fs/xfs/xfs_qm.c
+++ b/fs/xfs/xfs_qm.c
@@ -326,8 +326,7 @@ xfs_qm_dqattach_locked(
ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
if (XFS_IS_UQUOTA_ON(mp) && !ip->i_udquot) {
- error = xfs_qm_dqattach_one(ip,
- xfs_kuid_to_uid(VFS_I(ip)->i_uid),
+ error = xfs_qm_dqattach_one(ip, i_uid_read(VFS_I(ip)),
XFS_DQ_USER, doalloc, &ip->i_udquot);
if (error)
goto done;
@@ -335,8 +334,7 @@ xfs_qm_dqattach_locked(
}
if (XFS_IS_GQUOTA_ON(mp) && !ip->i_gdquot) {
- error = xfs_qm_dqattach_one(ip,
- xfs_kgid_to_gid(VFS_I(ip)->i_gid),
+ error = xfs_qm_dqattach_one(ip, i_gid_read(VFS_I(ip)),
XFS_DQ_GROUP, doalloc, &ip->i_gdquot);
if (error)
goto done;
@@ -1625,6 +1623,7 @@ xfs_qm_vop_dqalloc(
{
struct xfs_mount *mp = ip->i_mount;
struct inode *inode = VFS_I(ip);
+ struct user_namespace *user_ns = inode->i_sb->s_user_ns;
struct xfs_dquot *uq = NULL;
struct xfs_dquot *gq = NULL;
struct xfs_dquot *pq = NULL;
@@ -1664,7 +1663,7 @@ xfs_qm_vop_dqalloc(
* holding ilock.
*/
xfs_iunlock(ip, lockflags);
- error = xfs_qm_dqget(mp, xfs_kuid_to_uid(uid),
+ error = xfs_qm_dqget(mp, from_kuid(user_ns, uid),
XFS_DQ_USER, true, &uq);
if (error) {
ASSERT(error != -ENOENT);
@@ -1688,7 +1687,7 @@ xfs_qm_vop_dqalloc(
if ((flags & XFS_QMOPT_GQUOTA) && XFS_IS_GQUOTA_ON(mp)) {
if (!gid_eq(inode->i_gid, gid)) {
xfs_iunlock(ip, lockflags);
- error = xfs_qm_dqget(mp, xfs_kgid_to_gid(gid),
+ error = xfs_qm_dqget(mp, from_kgid(user_ns, gid),
XFS_DQ_GROUP, true, &gq);
if (error) {
ASSERT(error != -ENOENT);
@@ -1815,8 +1814,7 @@ xfs_qm_vop_chown_reserve(
XFS_QMOPT_RES_RTBLKS : XFS_QMOPT_RES_REGBLKS;
if (XFS_IS_UQUOTA_ON(mp) && udqp &&
- xfs_kuid_to_uid(VFS_I(ip)->i_uid) !=
- be32_to_cpu(udqp->q_core.d_id)) {
+ i_uid_read(VFS_I(ip)) != be32_to_cpu(udqp->q_core.d_id)) {
udq_delblks = udqp;
/*
* If there are delayed allocation blocks, then we have to
@@ -1829,8 +1827,7 @@ xfs_qm_vop_chown_reserve(
}
}
if (XFS_IS_GQUOTA_ON(ip->i_mount) && gdqp &&
- xfs_kgid_to_gid(VFS_I(ip)->i_gid) !=
- be32_to_cpu(gdqp->q_core.d_id)) {
+ i_gid_read(VFS_I(ip)) != be32_to_cpu(gdqp->q_core.d_id)) {
gdq_delblks = gdqp;
if (delblks) {
ASSERT(ip->i_gdquot);
@@ -1927,16 +1924,14 @@ xfs_qm_vop_create_dqattach(
if (udqp && XFS_IS_UQUOTA_ON(mp)) {
ASSERT(ip->i_udquot == NULL);
- ASSERT(xfs_kuid_to_uid(VFS_I(ip)->i_uid) ==
- be32_to_cpu(udqp->q_core.d_id));
+ ASSERT(i_uid_read(VFS_I(ip)) == be32_to_cpu(udqp->q_core.d_id));
ip->i_udquot = xfs_qm_dqhold(udqp);
xfs_trans_mod_dquot(tp, udqp, XFS_TRANS_DQ_ICOUNT, 1);
}
if (gdqp && XFS_IS_GQUOTA_ON(mp)) {
ASSERT(ip->i_gdquot == NULL);
- ASSERT(xfs_kgid_to_gid(VFS_I(ip)->i_gid) ==
- be32_to_cpu(gdqp->q_core.d_id));
+ ASSERT(i_gid_read(VFS_I(ip)) == be32_to_cpu(gdqp->q_core.d_id));
ip->i_gdquot = xfs_qm_dqhold(gdqp);
xfs_trans_mod_dquot(tp, gdqp, XFS_TRANS_DQ_ICOUNT, 1);