* Author: Nikita Danilov <nikita@clusterfs.com>
*/
-/*
- * oi uses two mechanisms to implement fid->cookie mapping:
- *
- * - persistent index, where cookie is a record and fid is a key, and
- *
- * - algorithmic mapping for "igif" fids.
- *
- */
-
#define DEBUG_SUBSYSTEM S_MDS
#include <linux/module.h>
#include "osd_oi.h"
/* osd_lookup(), struct osd_thread_info */
#include "osd_internal.h"
-#include "osd_igif.h"
#include "osd_scrub.h"
static unsigned int osd_oi_count = OSD_OI_FID_NR;
if (IS_ERR(inode))
RETURN(PTR_ERR(inode));
+ ldiskfs_set_inode_state(inode, LDISKFS_STATE_LUSTRE_NO_OI);
OBD_ALLOC_PTR(oi);
if (oi == NULL)
GOTO(out_inode, rc = -ENOMEM);
{
struct iam_container *bag;
struct iam_iterator *it = &oti->oti_idx_it;
- struct iam_rec *iam_rec;
struct iam_path_descr *ipd;
int rc;
ENTRY;
iam_it_init(it, bag, 0, ipd);
rc = iam_it_get(it, (struct iam_key *)key);
- if (rc >= 0) {
- if (S_ISDIR(oi->oi_inode->i_mode))
- iam_rec = (struct iam_rec *)oti->oti_ldp;
- else
- iam_rec = (struct iam_rec *)rec;
-
- iam_reccpy(&it->ii_path.ip_leaf, (struct iam_rec *)iam_rec);
- if (S_ISDIR(oi->oi_inode->i_mode))
- osd_fid_unpack((struct lu_fid *)rec,
- (struct osd_fid_pack *)iam_rec);
- }
+ if (rc > 0)
+ iam_reccpy(&it->ii_path.ip_leaf, (struct iam_rec *)rec);
iam_it_put(it);
iam_it_fini(it);
osd_ipd_put(oti->oti_env, bag, ipd);
int rc;
ENTRY;
+ if (unlikely(fid_is_local_file(fid) || fid_is_igif(fid)))
+ RETURN(0);
+
if (fid_is_idif(fid) || fid_is_last_id(fid))
RETURN(1);
}
int osd_oi_lookup(struct osd_thread_info *info, struct osd_device *osd,
- const struct lu_fid *fid, struct osd_inode_id *id)
+ const struct lu_fid *fid, struct osd_inode_id *id,
+ bool check_fld)
{
- int rc = 0;
-
- if ((!fid_is_last_id(fid) && fid_is_on_ost(info, osd, fid)) ||
- fid_is_llog(fid)) {
- /* old OSD obj id */
- /* FIXME: actually for all of the OST object */
- rc = osd_obj_map_lookup(info, osd, fid, id);
- } else if (fid_is_igif(fid)) {
- lu_igif_to_id(fid, id);
- } else if (fid_is_fs_root(fid)) {
+ if (unlikely(fid_is_last_id(fid)))
+ return osd_obj_spec_lookup(info, osd, fid, id);
+
+ if ((check_fld && fid_is_on_ost(info, osd, fid)) || fid_is_llog(fid))
+ return osd_obj_map_lookup(info, osd, fid, id);
+
+ if (fid_is_fs_root(fid)) {
osd_id_gen(id, osd_sb(osd)->s_root->d_inode->i_ino,
osd_sb(osd)->s_root->d_inode->i_generation);
- } else {
- if (unlikely(fid_is_acct(fid)))
- return osd_acct_obj_lookup(info, osd, fid, id);
- else if (unlikely(fid_seq(fid) == FID_SEQ_LOCAL_FILE) ||
- fid_is_last_id(fid))
- return osd_obj_spec_lookup(info, osd, fid, id);
-
- rc = __osd_oi_lookup(info, osd, fid, id);
+ return 0;
}
- return rc;
+
+ if (unlikely(fid_is_acct(fid)))
+ return osd_acct_obj_lookup(info, osd, fid, id);
+
+ return __osd_oi_lookup(info, osd, fid, id);
}
-static int osd_oi_iam_insert(struct osd_thread_info *oti, struct osd_oi *oi,
+static int osd_oi_iam_refresh(struct osd_thread_info *oti, struct osd_oi *oi,
const struct dt_rec *rec, const struct dt_key *key,
- struct thandle *th)
+ struct thandle *th, bool insert)
{
- struct iam_container *bag;
- struct iam_rec *iam_rec = (struct iam_rec *)oti->oti_ldp;
- struct iam_path_descr *ipd;
- struct osd_thandle *oh;
- int rc;
- ENTRY;
+ struct iam_container *bag;
+ struct iam_path_descr *ipd;
+ struct osd_thandle *oh;
+ int rc;
+ ENTRY;
- LASSERT(oi);
- LASSERT(oi->oi_inode);
+ LASSERT(oi);
+ LASSERT(oi->oi_inode);
ll_vfs_dq_init(oi->oi_inode);
- bag = &oi->oi_dir.od_container;
- ipd = osd_idx_ipd_get(oti->oti_env, bag);
- if (unlikely(ipd == NULL))
- RETURN(-ENOMEM);
+ bag = &oi->oi_dir.od_container;
+ ipd = osd_idx_ipd_get(oti->oti_env, bag);
+ if (unlikely(ipd == NULL))
+ RETURN(-ENOMEM);
- oh = container_of0(th, struct osd_thandle, ot_super);
- LASSERT(oh->ot_handle != NULL);
- LASSERT(oh->ot_handle->h_transaction != NULL);
- if (S_ISDIR(oi->oi_inode->i_mode))
- osd_fid_pack((struct osd_fid_pack *)iam_rec, rec,
- &oti->oti_fid);
- else
- iam_rec = (struct iam_rec *) rec;
- rc = iam_insert(oh->ot_handle, bag, (const struct iam_key *)key,
- iam_rec, ipd);
- osd_ipd_put(oti->oti_env, bag, ipd);
- LINVRNT(osd_invariant(obj));
- RETURN(rc);
+ oh = container_of0(th, struct osd_thandle, ot_super);
+ LASSERT(oh->ot_handle != NULL);
+ LASSERT(oh->ot_handle->h_transaction != NULL);
+ if (insert)
+ rc = iam_insert(oh->ot_handle, bag, (const struct iam_key *)key,
+ (const struct iam_rec *)rec, ipd);
+ else
+ rc = iam_update(oh->ot_handle, bag, (const struct iam_key *)key,
+ (const struct iam_rec *)rec, ipd);
+ osd_ipd_put(oti->oti_env, bag, ipd);
+ LINVRNT(osd_invariant(obj));
+ RETURN(rc);
}
int osd_oi_insert(struct osd_thread_info *info, struct osd_device *osd,
struct thandle *th)
{
struct lu_fid *oi_fid = &info->oti_fid2;
- struct osd_inode_id *oi_id = &info->oti_id2;
+ struct osd_inode_id *oi_id = &info->oti_id2;
+ int rc = 0;
- if (fid_is_igif(fid) || unlikely(fid_seq(fid) == FID_SEQ_DOT_LUSTRE))
- return 0;
+ if (unlikely(fid_is_last_id(fid)))
+ return osd_obj_spec_insert(info, osd, fid, id, th);
- if ((fid_is_on_ost(info, osd, fid) && !fid_is_last_id(fid)) ||
- fid_is_llog(fid))
+ if (fid_is_on_ost(info, osd, fid) || fid_is_llog(fid))
return osd_obj_map_insert(info, osd, fid, id, th);
- /* Server mount should not depends on OI files */
- if (unlikely(fid_seq(fid) == FID_SEQ_LOCAL_FILE) ||
- fid_is_last_id(fid))
- return osd_obj_spec_insert(info, osd, fid, id, th);
-
fid_cpu_to_be(oi_fid, fid);
osd_id_pack(oi_id, id);
- return osd_oi_iam_insert(info, osd_fid2oi(osd, fid),
- (const struct dt_rec *)oi_id,
- (const struct dt_key *)oi_fid, th);
+ rc = osd_oi_iam_refresh(info, osd_fid2oi(osd, fid),
+ (const struct dt_rec *)oi_id,
+ (const struct dt_key *)oi_fid, th, true);
+ if (rc != 0) {
+ struct inode *inode;
+ struct lustre_mdt_attrs *lma = &info->oti_mdt_attrs;
+
+ if (rc != -EEXIST)
+ return rc;
+
+ rc = osd_oi_lookup(info, osd, fid, oi_id, false);
+ if (unlikely(rc != 0))
+ return rc;
+
+ if (osd_id_eq(id, oi_id)) {
+ CERROR("%.16s: the FID "DFID" is there already:%u/%u\n",
+ LDISKFS_SB(osd_sb(osd))->s_es->s_volume_name,
+ PFID(fid), id->oii_ino, id->oii_gen);
+ return -EEXIST;
+ }
+
+ /* Check whether the mapping for oi_id is valid or not. */
+ inode = osd_iget(info, osd, oi_id);
+ if (IS_ERR(inode)) {
+ rc = PTR_ERR(inode);
+ if (rc == -ENOENT || rc == -ESTALE)
+ goto update;
+ return rc;
+ }
+
+ rc = osd_get_lma(info, inode, &info->oti_obj_dentry, lma);
+ iput(inode);
+ if (rc == -ENODATA)
+ goto update;
+
+ if (rc != 0)
+ return rc;
+
+ if (lu_fid_eq(fid, &lma->lma_self_fid)) {
+ CERROR("%.16s: the FID "DFID" is used by two objects: "
+ "%u/%u %u/%u\n",
+ LDISKFS_SB(osd_sb(osd))->s_es->s_volume_name,
+ PFID(fid), oi_id->oii_ino, oi_id->oii_gen,
+ id->oii_ino, id->oii_gen);
+ return -EEXIST;
+ }
+
+update:
+ osd_id_pack(oi_id, id);
+ rc = osd_oi_iam_refresh(info, osd_fid2oi(osd, fid),
+ (const struct dt_rec *)oi_id,
+ (const struct dt_key *)oi_fid, th, false);
+ if (rc != 0)
+ return rc;
+ }
+
+ if (unlikely(fid_seq(fid) == FID_SEQ_LOCAL_FILE))
+ rc = osd_obj_spec_insert(info, osd, fid, id, th);
+ return rc;
}
static int osd_oi_iam_delete(struct osd_thread_info *oti, struct osd_oi *oi,
{
struct lu_fid *oi_fid = &info->oti_fid2;
- if (fid_is_igif(fid) || fid_is_last_id(fid))
+ if (fid_is_last_id(fid))
return 0;
- LASSERT(fid_seq(fid) != FID_SEQ_LOCAL_FILE);
-
if (fid_is_on_ost(info, osd, fid) || fid_is_llog(fid))
return osd_obj_map_delete(info, osd, fid, th);
git://git.whamcloud.com / fs / lustre-release.git / blobdiff