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[XFS] Quota inode has no parent. 

Avoid using a special "zero inode" as the parent of the quota inode as
this can confuse the filestreams code into thinking the quota inode has a
parent. We do not want the quota inode to follow filestreams allocation
rules, so pass a NULL as the parent inode and detect this condition when
doing stream associations.

SGI-PV: 964469
SGI-Modid: xfs-linux-melb:xfs-kern:29098a

Signed-off-by: David Chinner <dgc@sgi.com>
Signed-off-by: Tim Shimmin <tes@sgi.com>
This commit is contained in:
David Chinner 2007-07-11 11:09:33 +10:00 committed by Tim Shimmin
parent 2a82b8be8a
commit b11f94d537
2 changed files with 10 additions and 6 deletions
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3
fs/xfs/quota/xfs_qm.c
View File

@ -65,7 +65,6 @@ kmem_zone_t *qm_dqtrxzone;
static struct shrinker *xfs_qm_shaker;
static cred_t xfs_zerocr;
static xfs_inode_t xfs_zeroino;
STATIC void xfs_qm_list_init(xfs_dqlist_t *, char *, int);
STATIC void xfs_qm_list_destroy(xfs_dqlist_t *);
@ -1415,7 +1414,7 @@ xfs_qm_qino_alloc(
return error;
}
if ((error = xfs_dir_ialloc(&tp, &xfs_zeroino, S_IFREG, 1, 0,
if ((error = xfs_dir_ialloc(&tp, NULL, S_IFREG, 1, 0,
&xfs_zerocr, 0, 1, ip, &committed))) {
xfs_trans_cancel(tp, XFS_TRANS_RELEASE_LOG_RES |
XFS_TRANS_ABORT);

13
fs/xfs/xfs_inode.c
View File

@ -1078,6 +1078,11 @@ xfs_iread_extents(
* also returns the [locked] bp pointing to the head of the freelist
* as ialloc_context. The caller should hold this buffer across
* the commit and pass it back into this routine on the second call.
*
* If we are allocating quota inodes, we do not have a parent inode
* to attach to or associate with (i.e. pip == NULL) because they
* are not linked into the directory structure - they are attached
* directly to the superblock - and so have no parent.
*/
int
xfs_ialloc(
@ -1103,7 +1108,7 @@ xfs_ialloc(
* Call the space management code to pick
* the on-disk inode to be allocated.
*/
error = xfs_dialloc(tp, pip->i_ino, mode, okalloc,
error = xfs_dialloc(tp, pip ? pip->i_ino : 0, mode, okalloc,
ialloc_context, call_again, &ino);
if (error != 0) {
return error;
@ -1157,7 +1162,7 @@ xfs_ialloc(
if ((prid != 0) && (ip->i_d.di_version == XFS_DINODE_VERSION_1))
xfs_bump_ino_vers2(tp, ip);
if (XFS_INHERIT_GID(pip, vp->v_vfsp)) {
if (pip && XFS_INHERIT_GID(pip, vp->v_vfsp)) {
ip->i_d.di_gid = pip->i_d.di_gid;
if ((pip->i_d.di_mode & S_ISGID) && (mode & S_IFMT) == S_IFDIR) {
ip->i_d.di_mode |= S_ISGID;
@ -1199,7 +1204,7 @@ xfs_ialloc(
flags |= XFS_ILOG_DEV;
break;
case S_IFREG:
if (xfs_inode_is_filestream(pip)) {
if (pip && xfs_inode_is_filestream(pip)) {
error = xfs_filestream_associate(pip, ip);
if (error < 0)
return -error;
@ -1208,7 +1213,7 @@ xfs_ialloc(
}
/* fall through */
case S_IFDIR:
if (pip->i_d.di_flags & XFS_DIFLAG_ANY) {
if (pip && (pip->i_d.di_flags & XFS_DIFLAG_ANY)) {
uint di_flags = 0;
if ((mode & S_IFMT) == S_IFDIR) {