int mgs_fs_setup(struct obd_device *obd, struct vfsmount *mnt)
{
struct mgs_obd *mgs = &obd->u.mgs;
struct lvfs_run_ctxt saved;
struct dentry *dentry;
int rc;
ENTRY;
/* FIXME what's this? Do I need it? */
rc = cfs_cleanup_group_info();
if (rc)
RETURN(rc);
mgs->mgs_vfsmnt = mnt;
mgs->mgs_sb = mnt->mnt_root->d_inode->i_sb;
rc = fsfilt_setup(obd, mgs->mgs_sb);
if (rc)
RETURN(rc);
OBD_SET_CTXT_MAGIC(&obd->obd_lvfs_ctxt);
obd->obd_lvfs_ctxt.pwdmnt = mnt;
obd->obd_lvfs_ctxt.pwd = mnt->mnt_root;
obd->obd_lvfs_ctxt.fs = get_ds();
obd->obd_lvfs_ctxt.cb_ops = mgs_lvfs_ops;
push_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
/* Setup the configs dir */
dentry = simple_mkdir(cfs_fs_pwd(current->fs), mnt, MOUNT_CONFIGS_DIR, 0777, 1);
if (IS_ERR(dentry)) {
rc = PTR_ERR(dentry);
CERROR("cannot create %s directory: rc = %d\n",
MOUNT_CONFIGS_DIR, rc);
GOTO(err_pop, rc);
}
mgs->mgs_configs_dir = dentry;
/* create directory to store nid table versions */
dentry = simple_mkdir(cfs_fs_pwd(current->fs), mnt, MGS_NIDTBL_DIR,
0777, 1);
if (IS_ERR(dentry)) {
rc = PTR_ERR(dentry);
CERROR("cannot create %s directory: rc = %d\n",
MOUNT_CONFIGS_DIR, rc);
GOTO(err_pop, rc);
} else {
dput(dentry);
}
err_pop:
pop_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
return rc;
}
static void mds_init_ctxt(struct obd_device *obd, struct vfsmount *mnt)
{
struct mds_obd *mds = &obd->u.mds;
mds->mds_obt.obt_vfsmnt = mnt;
/* why not mnt->mnt_sb instead of mnt->mnt_root->d_inode->i_sb? */
obd->u.obt.obt_sb = mnt->mnt_root->d_inode->i_sb;
obd->u.obt.obt_magic = OBT_MAGIC;
fsfilt_setup(obd, obd->u.obt.obt_sb);
OBD_SET_CTXT_MAGIC(&obd->obd_lvfs_ctxt);
obd->obd_lvfs_ctxt.pwdmnt = mnt;
obd->obd_lvfs_ctxt.pwd = mnt->mnt_root;
obd->obd_lvfs_ctxt.fs = get_ds();
obd->obd_lvfs_ctxt.cb_ops = mds_lvfs_ops;
return;
}
