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authorNathan Scott <nathans@sgi.com>2005-06-21 15:39:12 +1000
committerNathan Scott <nathans@sgi.com>2005-06-21 15:39:12 +1000
commit365ca83d509f77f2095976edb8d10ca6e9d86d58 (patch)
tree312ef7fdcb4f35f49d0b0432344779e32ca81cbd /fs/xfs/xfs_vnodeops.c
parentc8ad20ffeb592d66ea869c57f8c525a9d727c67b (diff)
[XFS] Add support for project quota inheritance, a merge of Glens changes.
SGI-PV: 932952 SGI-Modid: xfs-linux:xfs-kern:22806a Signed-off-by: Nathan Scott <nathans@sgi.com>
Diffstat (limited to 'fs/xfs/xfs_vnodeops.c')
-rw-r--r--fs/xfs/xfs_vnodeops.c37
1 files changed, 22 insertions, 15 deletions
diff --git a/fs/xfs/xfs_vnodeops.c b/fs/xfs/xfs_vnodeops.c
index 695978b2749..96dc18b73cf 100644
--- a/fs/xfs/xfs_vnodeops.c
+++ b/fs/xfs/xfs_vnodeops.c
@@ -507,8 +507,6 @@ xfs_setattr(
* that the group ID supplied to the chown() function
* shall be equal to either the group ID or one of the
* supplementary group IDs of the calling process.
- *
- * XXX: How does restricted_chown affect projid?
*/
if (restricted_chown &&
(iuid != uid || (igid != gid &&
@@ -860,6 +858,8 @@ xfs_setattr(
di_flags |= XFS_DIFLAG_NOATIME;
if (vap->va_xflags & XFS_XFLAG_NODUMP)
di_flags |= XFS_DIFLAG_NODUMP;
+ if (vap->va_xflags & XFS_XFLAG_PROJINHERIT)
+ di_flags |= XFS_DIFLAG_PROJINHERIT;
if ((ip->i_d.di_mode & S_IFMT) == S_IFDIR) {
if (vap->va_xflags & XFS_XFLAG_RTINHERIT)
di_flags |= XFS_DIFLAG_RTINHERIT;
@@ -1915,7 +1915,9 @@ xfs_create(
/* Return through std_return after this point. */
udqp = gdqp = NULL;
- if (vap->va_mask & XFS_AT_PROJID)
+ if (dp->i_d.di_flags & XFS_DIFLAG_PROJINHERIT)
+ prid = dp->i_d.di_projid;
+ else if (vap->va_mask & XFS_AT_PROJID)
prid = (xfs_prid_t)vap->va_projid;
else
prid = (xfs_prid_t)dfltprid;
@@ -2621,17 +2623,7 @@ xfs_link(
if (src_vp->v_type == VDIR)
return XFS_ERROR(EPERM);
- /*
- * For now, manually find the XFS behavior descriptor for
- * the source vnode. If it doesn't exist then something
- * is wrong and we should just return an error.
- * Eventually we need to figure out how link is going to
- * work in the face of stacked vnodes.
- */
src_bdp = vn_bhv_lookup_unlocked(VN_BHV_HEAD(src_vp), &xfs_vnodeops);
- if (src_bdp == NULL) {
- return XFS_ERROR(EXDEV);
- }
sip = XFS_BHVTOI(src_bdp);
tdp = XFS_BHVTOI(target_dir_bdp);
mp = tdp->i_mount;
@@ -2698,6 +2690,17 @@ xfs_link(
goto error_return;
}
+ /*
+ * If we are using project inheritance, we only allow hard link
+ * creation in our tree when the project IDs are the same; else
+ * the tree quota mechanism could be circumvented.
+ */
+ if (unlikely((tdp->i_d.di_flags & XFS_DIFLAG_PROJINHERIT) &&
+ (tdp->i_d.di_projid != sip->i_d.di_projid))) {
+ error = XFS_ERROR(EPERM);
+ goto error_return;
+ }
+
if (resblks == 0 &&
(error = XFS_DIR_CANENTER(mp, tp, tdp, target_name,
target_namelen)))
@@ -2820,7 +2823,9 @@ xfs_mkdir(
mp = dp->i_mount;
udqp = gdqp = NULL;
- if (vap->va_mask & XFS_AT_PROJID)
+ if (dp->i_d.di_flags & XFS_DIFLAG_PROJINHERIT)
+ prid = dp->i_d.di_projid;
+ else if (vap->va_mask & XFS_AT_PROJID)
prid = (xfs_prid_t)vap->va_projid;
else
prid = (xfs_prid_t)dfltprid;
@@ -3374,7 +3379,9 @@ xfs_symlink(
/* Return through std_return after this point. */
udqp = gdqp = NULL;
- if (vap->va_mask & XFS_AT_PROJID)
+ if (dp->i_d.di_flags & XFS_DIFLAG_PROJINHERIT)
+ prid = dp->i_d.di_projid;
+ else if (vap->va_mask & XFS_AT_PROJID)
prid = (xfs_prid_t)vap->va_projid;
else
prid = (xfs_prid_t)dfltprid;