* Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*
- * Copyright (c) 2011, 2012, Whamcloud, Inc.
+ * Copyright (c) 2011, 2012, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
#define DEBUG_SUBSYSTEM S_MGS
-#include <linux/module.h>
-#include <linux/kmod.h>
-#include <linux/version.h>
-#include <linux/sched.h>
-#include <linux/mount.h>
-#include <obd_class.h>
-#include <obd_support.h>
-#include <lustre_disk.h>
-#include <lustre_lib.h>
-#include <lustre_fsfilt.h>
-#include <libcfs/list.h>
#include <lustre_fid.h>
#include "mgs_internal.h"
return 0;
}
-/* Same as mds_lvfs_fid2dentry */
-/* Look up an entry by inode number. */
-/* this function ONLY returns valid dget'd dentries with an initialized inode
- or errors */
-static struct dentry *mgs_lvfs_fid2dentry(__u64 id, __u32 gen,
- __u64 gr, void *data)
-{
- struct fsfilt_fid fid;
- struct obd_device *obd = (struct obd_device *)data;
- struct mgs_device *mgs = lu2mgs_dev(obd->obd_lu_dev);
- ENTRY;
-
- CDEBUG(D_DENTRY, "--> mgs_fid2dentry: ino/gen %lu/%u, sb %p\n",
- (unsigned long)id, gen, mgs->mgs_sb);
-
- if (id == 0)
- RETURN(ERR_PTR(-ESTALE));
-
- fid.ino = id;
- fid.gen = gen;
-
- RETURN(fsfilt_fid2dentry(obd, mgs->mgs_vfsmnt, &fid, 0));
-}
-
-struct lvfs_callback_ops mgs_lvfs_ops = {
- l_fid2dentry: mgs_lvfs_fid2dentry,
-};
-
-int mgs_fs_setup_old(const struct lu_env *env, struct mgs_device *mgs)
-{
- struct obd_device *obd = mgs->mgs_obd;
- struct dt_device_param p;
- struct vfsmount *mnt;
- struct lvfs_run_ctxt saved;
- struct dentry *dentry;
- int rc;
- ENTRY;
-
- dt_conf_get(env, mgs->mgs_bottom, &p);
- mnt = p.ddp_mnt;
- if (mnt == NULL) {
- CERROR("%s: no proper support for OSD yet\n", obd->obd_name);
- RETURN(-ENODEV);
- }
-
- /* 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;
-
- obd->obd_fsops = fsfilt_get_ops(mt_str(p.ddp_mount_type));
- if (IS_ERR(obd->obd_fsops))
- RETURN(PTR_ERR(obd->obd_fsops));
-
- 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_old = 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;
-}
-
-int mgs_fs_cleanup_old(const struct lu_env *env, struct mgs_device *mgs)
-{
- struct obd_device *obd = mgs->mgs_obd;
- struct lvfs_run_ctxt saved;
- int rc = 0;
-
- class_disconnect_exports(obd); /* cleans up client info too */
-
- push_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
-
- if (mgs->mgs_configs_dir_old) {
- l_dput(mgs->mgs_configs_dir_old);
- mgs->mgs_configs_dir_old = NULL;
- }
-
- shrink_dcache_sb(mgs->mgs_sb);
-
- pop_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
-
- if (obd->obd_fsops)
- fsfilt_put_ops(obd->obd_fsops);
-
- return rc;
-}
-
int mgs_fs_setup(const struct lu_env *env, struct mgs_device *mgs)
{
- struct lu_fid fid;
- struct dt_object *o;
- struct lu_fid rfid;
- struct dt_object *root;
- int rc;
+ struct lu_fid fid;
+ struct dt_object *o;
+ struct lu_fid rfid;
+ struct dt_object *root;
+ int rc;
+
ENTRY;
/* FIXME what's this? Do I need it? */
if (rc)
RETURN(rc);
+ OBD_SET_CTXT_MAGIC(&mgs->mgs_obd->obd_lvfs_ctxt);
+ mgs->mgs_obd->obd_lvfs_ctxt.dt = mgs->mgs_bottom;
+
/* XXX: fix when support for N:1 layering is implemented */
LASSERT(mgs->mgs_dt_dev.dd_lu_dev.ld_site);
mgs->mgs_dt_dev.dd_lu_dev.ld_site->ls_top_dev =
out:
mgs->mgs_dt_dev.dd_lu_dev.ld_site->ls_top_dev = NULL;
- if (rc == 0) {
- rc = mgs_fs_setup_old(env, mgs);
- if (rc)
- mgs_fs_cleanup(env, mgs);
- }
-
return rc;
}
int mgs_fs_cleanup(const struct lu_env *env, struct mgs_device *mgs)
{
- mgs_fs_cleanup_old(env, mgs);
-
class_disconnect_exports(mgs->mgs_obd); /* cleans up client info too */
if (mgs->mgs_configs_dir) {
git://git.whamcloud.com / fs / lustre-release.git / blobdiff