-
-/* If fso is NULL, op is FSFILT operation, otherwise op is number of fso
- objects. Logs is number of logfiles to update */
-static int fsfilt_ext3_get_op_len(int op, struct fsfilt_objinfo *fso, int logs)
-{
- if ( !fso ) {
- switch(op) {
- case FSFILT_OP_CREATE:
- /* directory leaf, index & indirect & EA*/
- return 4 + 3 * logs;
- case FSFILT_OP_UNLINK:
- return 3 * logs;
- }
- } else {
- int i;
- int needed = 0;
- struct super_block *sb = fso->fso_dentry->d_inode->i_sb;
- int blockpp = 1 << (CFS_PAGE_SHIFT - sb->s_blocksize_bits);
- int addrpp = EXT3_ADDR_PER_BLOCK(sb) * blockpp;
- for (i = 0; i < op; i++, fso++) {
- int nblocks = fso->fso_bufcnt * blockpp;
- int ndindirect = min(nblocks, addrpp + 1);
- int nindir = nblocks + ndindirect + 1;
-
- needed += nindir;
- }
- return needed + 3 * logs;
- }
-
- return 0;
-}
-
-#define DQINFO_COPY(out, in) \
-do { \
- Q_COPY(out, in, dqi_bgrace); \
- Q_COPY(out, in, dqi_igrace); \
- Q_COPY(out, in, dqi_flags); \
- Q_COPY(out, in, dqi_valid); \
-} while (0)
-
-#define DQBLK_COPY(out, in) \
-do { \
- Q_COPY(out, in, dqb_bhardlimit); \
- Q_COPY(out, in, dqb_bsoftlimit); \
- Q_COPY(out, in, dqb_curspace); \
- Q_COPY(out, in, dqb_ihardlimit); \
- Q_COPY(out, in, dqb_isoftlimit); \
- Q_COPY(out, in, dqb_curinodes); \
- Q_COPY(out, in, dqb_btime); \
- Q_COPY(out, in, dqb_itime); \
- Q_COPY(out, in, dqb_valid); \
-} while (0)
-
-static int fsfilt_ext3_quotactl(struct super_block *sb,
- struct obd_quotactl *oqc)
-{
- int i, rc = 0, error = 0;
- const struct quotactl_ops *qcop;
- struct if_dqinfo *info;
- struct if_dqblk *dqblk;
- ENTRY;
-
- if (!sb->s_qcop)
- RETURN(-ENOSYS);
-
- OBD_ALLOC_PTR(info);
- if (!info)
- RETURN(-ENOMEM);
- OBD_ALLOC_PTR(dqblk);
- if (!dqblk) {
- OBD_FREE_PTR(info);
- RETURN(-ENOMEM);
- }
-
- DQINFO_COPY(info, &oqc->qc_dqinfo);
- DQBLK_COPY(dqblk, &oqc->qc_dqblk);
-
- qcop = sb->s_qcop;
- if (oqc->qc_cmd == Q_QUOTAON || oqc->qc_cmd == Q_QUOTAOFF) {
- for (i = 0; i < MAXQUOTAS; i++) {
- if (!Q_TYPESET(oqc, i))
- continue;
-
- if (oqc->qc_cmd == Q_QUOTAON) {
- char *name[MAXQUOTAS] = LUSTRE_OPQFILES_NAMES_V2;
-
- LASSERT(oqc->qc_id == LUSTRE_QUOTA_V2);
-
- rc = ll_quota_on(sb, i, QFMT_LUSTRE,
- name[i], 0);
- } else if (oqc->qc_cmd == Q_QUOTAOFF) {
- rc = ll_quota_off(sb, i, 0);
- }
-
- if (rc == -EBUSY)
- error = rc;
- else if (rc)
- GOTO(out, rc);
- }
- GOTO(out, rc ?: error);
- }
-
- switch (oqc->qc_cmd) {
- case Q_GETOINFO:
- case Q_GETINFO:
- if (!qcop->get_info)
- GOTO(out, rc = -ENOSYS);
- rc = qcop->get_info(sb, oqc->qc_type, info);
- break;
- case Q_SETQUOTA:
- case Q_INITQUOTA:
- if (!qcop->set_dqblk)
- GOTO(out, rc = -ENOSYS);
- rc = qcop->set_dqblk(sb, oqc->qc_type, oqc->qc_id, dqblk);
- break;
- case Q_GETOQUOTA:
- case Q_GETQUOTA:
- if (!qcop->get_dqblk)
- GOTO(out, rc = -ENOSYS);
- rc = qcop->get_dqblk(sb, oqc->qc_type, oqc->qc_id, dqblk);
- if (!rc)
- dqblk->dqb_valid = QIF_LIMITS | QIF_USAGE;
- break;
- case Q_SYNC:
- if (!sb->s_qcop->quota_sync)
- GOTO(out, rc = -ENOSYS);
- qcop->quota_sync(sb, oqc->qc_type);
- break;
- case Q_FINVALIDATE:
- CDEBUG(D_WARNING, "invalidating operational quota files\n");
- for (i = 0; i < MAXQUOTAS; i++) {
- struct file *fp;
- char *name[MAXQUOTAS] = LUSTRE_OPQFILES_NAMES_V2;
-
- LASSERT(oqc->qc_id == LUSTRE_QUOTA_V2);
-
- if (!Q_TYPESET(oqc, i))
- continue;
-
- fp = filp_open(name[i], O_CREAT | O_TRUNC | O_RDWR, 0644);
- if (IS_ERR(fp)) {
- rc = PTR_ERR(fp);
- CERROR("error invalidating operational quota file"
- " %s (rc:%d)\n", name[i], rc);
- } else {
- filp_close(fp, 0);
- }
-
- }
- break;
- default:
- CERROR("unsupported quotactl command: %d\n", oqc->qc_cmd);
- LBUG();
- }
-out:
- DQINFO_COPY(&oqc->qc_dqinfo, info);
- DQBLK_COPY(&oqc->qc_dqblk, dqblk);
-
- OBD_FREE_PTR(info);
- OBD_FREE_PTR(dqblk);
-
- if (rc)
- CDEBUG(D_QUOTA, "quotactl command %#x, id %u, type %u "
- "failed: %d\n",
- oqc->qc_cmd, oqc->qc_id, oqc->qc_type, rc);
- RETURN(rc);
-}
-
-struct chk_dqblk{
- cfs_hlist_node_t dqb_hash; /** quotacheck hash */
- cfs_list_t dqb_list; /** in list also */
- qid_t dqb_id; /** uid/gid */
- short dqb_type; /** USRQUOTA/GRPQUOTA */
- qsize_t dqb_bhardlimit; /** block hard limit */
- qsize_t dqb_bsoftlimit; /** block soft limit */
- qsize_t dqb_curspace; /** current space */
- qsize_t dqb_ihardlimit; /** inode hard limit */
- qsize_t dqb_isoftlimit; /** inode soft limit */
- qsize_t dqb_curinodes; /** current inodes */
- obd_time dqb_btime; /** block grace time */
- obd_time dqb_itime; /** inode grace time */
- __u32 dqb_valid; /** flag for above fields */
-};
-
-static inline unsigned int chkquot_hash(qid_t id, int type)
- __attribute__((__const__));
-
-static inline unsigned int chkquot_hash(qid_t id, int type)
-{
- return (id * (MAXQUOTAS - type)) % NR_DQHASH;
-}
-
-static inline struct chk_dqblk *
-find_chkquot(cfs_hlist_head_t *head, qid_t id, int type)
-{
- cfs_hlist_node_t *node;
- struct chk_dqblk *cdqb;
-
- cfs_hlist_for_each(node, head) {
- cdqb = cfs_hlist_entry(node, struct chk_dqblk, dqb_hash);
- if (cdqb->dqb_id == id && cdqb->dqb_type == type)
- return cdqb;
- }
-
- return NULL;
-}
-
-static struct chk_dqblk *alloc_chkquot(qid_t id, int type)
-{
- struct chk_dqblk *cdqb;
-
- OBD_ALLOC_PTR(cdqb);
- if (cdqb) {
- CFS_INIT_HLIST_NODE(&cdqb->dqb_hash);
- CFS_INIT_LIST_HEAD(&cdqb->dqb_list);
- cdqb->dqb_id = id;
- cdqb->dqb_type = type;
- }
-
- return cdqb;
-}
-
-static struct chk_dqblk *
-cqget(struct super_block *sb, cfs_hlist_head_t *hash,
- cfs_list_t *list, qid_t id, int type, int first_check)
-{
- cfs_hlist_head_t *head = hash + chkquot_hash(id, type);
- struct if_dqblk dqb;
- struct chk_dqblk *cdqb;
- int rc;
-
- cdqb = find_chkquot(head, id, type);
- if (cdqb)
- return cdqb;
-
- cdqb = alloc_chkquot(id, type);
- if (!cdqb)
- return NULL;
-
- if (!first_check) {
- rc = sb->s_qcop->get_dqblk(sb, type, id, &dqb);
- if (rc) {
- CERROR("get_dqblk of id %u, type %d failed: %d\n",
- id, type, rc);
- } else {
- DQBLK_COPY(cdqb, &dqb);
- cdqb->dqb_curspace = 0;
- cdqb->dqb_curinodes = 0;
- }
- }
-
- cfs_hlist_add_head(&cdqb->dqb_hash, head);
- cfs_list_add_tail(&cdqb->dqb_list, list);
-
- return cdqb;
-}
-
-static inline int quota_onoff(struct super_block *sb, int cmd, int type, int qfmt)
-{
- struct obd_quotactl *oqctl;
- int rc;
-
- OBD_ALLOC_PTR(oqctl);
- if (!oqctl)
- RETURN(-ENOMEM);
-
- oqctl->qc_cmd = cmd;
- oqctl->qc_id = qfmt;
- oqctl->qc_type = type;
- rc = fsfilt_ext3_quotactl(sb, oqctl);
-
- OBD_FREE_PTR(oqctl);
- return rc;
-}
-
-static inline int read_old_dqinfo(struct super_block *sb, int type,
- struct if_dqinfo *dqinfo)
-{
- struct obd_quotactl *oqctl;
- int rc;
- ENTRY;
-
- OBD_ALLOC_PTR(oqctl);
- if (!oqctl)
- RETURN(-ENOMEM);
-
- oqctl->qc_cmd = Q_GETINFO;
- oqctl->qc_type = type;
- rc = fsfilt_ext3_quotactl(sb, oqctl);
- if (!rc)
- ((struct obd_dqinfo *)dqinfo)[type] = oqctl->qc_dqinfo;
-
- OBD_FREE_PTR(oqctl);
- RETURN(rc);
-}
-
-struct qchk_ctxt {
- cfs_hlist_head_t qckt_hash[NR_DQHASH]; /* quotacheck hash */
- cfs_list_t qckt_list; /* quotacheck list */
- int qckt_first_check[MAXQUOTAS]; /* 1 if no old quotafile */
- struct if_dqinfo qckt_dqinfo[MAXQUOTAS]; /* old dqinfo */
-};
-
-static int add_inode_quota(struct inode *inode, struct qchk_ctxt *qctxt,
- struct obd_quotactl *oqc)
-{
- struct chk_dqblk *cdqb[MAXQUOTAS] = { NULL, };
- loff_t size = 0;
- qid_t qid[MAXQUOTAS];
- int cnt, i, rc = 0;
-
- if (!inode)
- return 0;
-
- qid[USRQUOTA] = inode->i_uid;
- qid[GRPQUOTA] = inode->i_gid;
-
- if (S_ISDIR(inode->i_mode) ||
- S_ISREG(inode->i_mode) ||
- S_ISLNK(inode->i_mode))
- size = inode_get_bytes(inode);
-
- for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
- if (!Q_TYPESET(oqc, cnt))
- continue;
-
- cdqb[cnt] = cqget(inode->i_sb, qctxt->qckt_hash,
- &qctxt->qckt_list, qid[cnt], cnt,
- qctxt->qckt_first_check[cnt]);
- if (!cdqb[cnt]) {
- rc = -ENOMEM;
- break;
- }
-
- cdqb[cnt]->dqb_curspace += size;
- cdqb[cnt]->dqb_curinodes++;
- }
-
- if (rc) {
- for (i = 0; i < cnt; i++) {
- if (!Q_TYPESET(oqc, i))
- continue;
- LASSERT(cdqb[i]);
- cdqb[i]->dqb_curspace -= size;
- cdqb[i]->dqb_curinodes--;
- }
- }
-
- return rc;
-}
-
-/* write dqinfo struct in a new quota file */
-static int v3_write_dqinfo(struct file *f, int type, struct if_dqinfo *info)
-{
- struct v2_disk_dqinfo dqinfo;
- __u32 blocks = V2_DQTREEOFF + 1;
- loff_t offset = V2_DQINFOOFF;
-
- if (info) {
- dqinfo.dqi_bgrace = cpu_to_le32(info->dqi_bgrace);
- dqinfo.dqi_igrace = cpu_to_le32(info->dqi_igrace);
- dqinfo.dqi_flags = cpu_to_le32(info->dqi_flags & DQF_MASK &
- ~DQF_INFO_DIRTY);
- } else {
- dqinfo.dqi_bgrace = cpu_to_le32(MAX_DQ_TIME);
- dqinfo.dqi_igrace = cpu_to_le32(MAX_IQ_TIME);
- dqinfo.dqi_flags = 0;
- }
-
- dqinfo.dqi_blocks = cpu_to_le32(blocks);
- dqinfo.dqi_free_blk = 0;
- dqinfo.dqi_free_entry = 0;
-
- return cfs_user_write(f, (char *)&dqinfo, sizeof(dqinfo), &offset);
-}
-
-static int v3_write_dqheader(struct file *f, int type)
-{
- static const __u32 quota_magics[] = V2_INITQMAGICS;
- static const __u32 quota_versions[] = LUSTRE_INITQVERSIONS_V2;
- struct v2_disk_dqheader dqhead;
- loff_t offset = 0;
-
- CLASSERT(ARRAY_SIZE(quota_magics) == ARRAY_SIZE(quota_versions));
- LASSERT(0 <= type && type < ARRAY_SIZE(quota_magics));
-
- dqhead.dqh_magic = cpu_to_le32(quota_magics[type]);
- dqhead.dqh_version = cpu_to_le32(quota_versions[type]);
-
- return cfs_user_write(f, (char *)&dqhead, sizeof(dqhead), &offset);
-}
-
-static int create_new_quota_files(struct qchk_ctxt *qctxt,
- struct obd_quotactl *oqc)
-{
- int i, rc = 0;
- ENTRY;
-
- for (i = 0; i < MAXQUOTAS; i++) {
- struct if_dqinfo *info = qctxt->qckt_first_check[i]?
- NULL : &qctxt->qckt_dqinfo[i];
- struct file *file;
- const char *name[MAXQUOTAS] = LUSTRE_OPQFILES_NAMES_V2;
-
- if (!Q_TYPESET(oqc, i))
- continue;
-
- LASSERT(oqc->qc_id == LUSTRE_QUOTA_V2);
-
- file = filp_open(name[i], O_RDWR | O_CREAT | O_TRUNC, 0644);
- if (IS_ERR(file)) {
- rc = PTR_ERR(file);
- CERROR("can't create %s file: rc = %d\n",
- name[i], rc);
- GOTO(out, rc);
- }
-
- if (!S_ISREG(file->f_dentry->d_inode->i_mode)) {
- CERROR("file %s is not regular", name[i]);
- filp_close(file, 0);
- GOTO(out, rc = -EINVAL);
- }
-
- ll_vfs_dq_drop(file->f_dentry->d_inode);
-
- rc = v3_write_dqheader(file, i);
- if (rc) {
- filp_close(file, 0);
- GOTO(out, rc);
- }
-
- rc = v3_write_dqinfo(file, i, info);
- filp_close(file, 0);
- if (rc)
- GOTO(out, rc);
- }
-
-out:
- RETURN(rc);
-}
-
-
-static int commit_chkquot(struct super_block *sb, struct qchk_ctxt *qctxt,
- struct chk_dqblk *cdqb)
-{
- struct obd_quotactl *oqc;
- long now;
- int rc;
- ENTRY;
-
- OBD_ALLOC_PTR(oqc);
- if (!oqc)
- RETURN(-ENOMEM);
-
- now = cfs_time_current_sec();
-
- if (cdqb->dqb_bsoftlimit &&
- toqb(cdqb->dqb_curspace) >= cdqb->dqb_bsoftlimit &&
- !cdqb->dqb_btime)
- cdqb->dqb_btime =
- now + qctxt->qckt_dqinfo[cdqb->dqb_type].dqi_bgrace;
-
- if (cdqb->dqb_isoftlimit &&
- cdqb->dqb_curinodes >= cdqb->dqb_isoftlimit &&
- !cdqb->dqb_itime)
- cdqb->dqb_itime =
- now + qctxt->qckt_dqinfo[cdqb->dqb_type].dqi_igrace;
-
- cdqb->dqb_valid = QIF_ALL;
-
- oqc->qc_cmd = Q_SETQUOTA;
- oqc->qc_type = cdqb->dqb_type;
- oqc->qc_id = cdqb->dqb_id;
- DQBLK_COPY(&oqc->qc_dqblk, cdqb);
-
- rc = fsfilt_ext3_quotactl(sb, oqc);
- OBD_FREE_PTR(oqc);
- RETURN(rc);
-}
-
-static int prune_chkquots(struct super_block *sb,
- struct qchk_ctxt *qctxt, int error)
-{
- struct chk_dqblk *cdqb, *tmp;
- int rc;
-
- cfs_list_for_each_entry_safe(cdqb, tmp, &qctxt->qckt_list, dqb_list) {
- if (!error) {
- rc = commit_chkquot(sb, qctxt, cdqb);
- if (rc)
- error = rc;
- }
- cfs_hlist_del_init(&cdqb->dqb_hash);
- cfs_list_del(&cdqb->dqb_list);
- OBD_FREE_PTR(cdqb);
- }
-
- return error;
-}
-
-#ifndef EXT3_FEATURE_RO_COMPAT_GDT_CSUM
-#define EXT3_FEATURE_RO_COMPAT_GDT_CSUM 0x0010
-#endif
-
-static int fsfilt_ext3_quotacheck(struct super_block *sb,
- struct obd_quotactl *oqc)
-{
- struct ext3_sb_info *sbi = EXT3_SB(sb);
- int i, group, uninit_feat = 0;
- struct qchk_ctxt *qctxt;
- struct buffer_head *bitmap_bh = NULL;
- unsigned long ino, inode_inuse;
- struct inode *inode;
- int rc = 0;
- ENTRY;
-
- /* turn on quota and read dqinfo if existed */
- OBD_ALLOC_PTR(qctxt);
- if (!qctxt) {
- oqc->qc_stat = -ENOMEM;
- RETURN(-ENOMEM);
- }
-
- for (i = 0; i < NR_DQHASH; i++)
- CFS_INIT_HLIST_HEAD(&qctxt->qckt_hash[i]);
- CFS_INIT_LIST_HEAD(&qctxt->qckt_list);
-
- for (i = 0; i < MAXQUOTAS; i++) {
- if (!Q_TYPESET(oqc, i))
- continue;
-
- rc = quota_onoff(sb, Q_QUOTAON, i, oqc->qc_id);
- if (!rc || rc == -EBUSY) {
- rc = read_old_dqinfo(sb, i, qctxt->qckt_dqinfo);
- if (rc)
- GOTO(out, rc);
- } else if (rc == -ENOENT || rc == -EINVAL || rc == -EEXIST) {
- qctxt->qckt_first_check[i] = 1;
- } else if (rc) {
- GOTO(out, rc);
- }
- }
- if (EXT3_HAS_RO_COMPAT_FEATURE(sb, EXT3_FEATURE_RO_COMPAT_GDT_CSUM))
- /* This filesystem supports the uninit group feature */
- uninit_feat = 1;
-
- /* number of inodes that have been allocated */
- inode_inuse = sbi->s_inodes_per_group * sbi->s_groups_count -
- percpu_counter_sum(&sbi->s_freeinodes_counter);
-
- /* check quota and update in hash */
- for (group = 0; group < sbi->s_groups_count && inode_inuse > 0;
- group++) {
- unsigned long used_count = sbi->s_inodes_per_group;
-
- if (uninit_feat) {
- struct ext3_group_desc *desc;
- desc = ext3_get_group_desc(sb, group, NULL);
- if (!desc)
- GOTO(out, -EIO);
-
- /* we don't really need to take the group lock here,
- * but it may be useful if one day we support online
- * quotacheck */
- ext4_lock_group(sb, group);
- if (desc->bg_flags & cpu_to_le16(EXT3_BG_INODE_UNINIT)) {
- /* no inode in use in this group, just skip it */
- ext3_unlock_group(sb, group);
- continue;
- }
-
- used_count -= ext3_itable_unused_count(sb, desc);
- ext3_unlock_group(sb, group);
- }
-
- ino = group * sbi->s_inodes_per_group + 1;
- bitmap_bh = ext3_read_inode_bitmap(sb, group);
- if (!bitmap_bh) {
- CERROR("%s: ext3_read_inode_bitmap group %d failed\n",
- sb->s_id, group);
- GOTO(out, -EIO);
- }
-
- i = 0;
- while (i < used_count &&
- (i = ext3_find_next_bit(bitmap_bh->b_data,
- used_count, i)) < used_count) {
- inode_inuse--;
- i++;
- ino = i + group * sbi->s_inodes_per_group;
- if (ino < sbi->s_first_ino)
- continue;
- inode = ext3_iget(sb, ino);
- if (!inode || IS_ERR(inode))
- continue;
-
- rc = add_inode_quota(inode, qctxt, oqc);
- iput(inode);
- if (rc) {
- brelse(bitmap_bh);
- GOTO(out, rc);
- }
- }
- brelse(bitmap_bh);
- }
-
- /* read old quota limits from old quota file. (only for the user
- * has limits but hasn't file) */
- for (i = 0; i < MAXQUOTAS; i++) {
- cfs_list_t id_list;
- struct dquot_id *dqid, *tmp;
-
- if (!Q_TYPESET(oqc, i))
- continue;
-
- if (qctxt->qckt_first_check[i])
- continue;
-
-
- LASSERT(sb_dqopt(sb)->files[i] != NULL);
- CFS_INIT_LIST_HEAD(&id_list);
- rc = lustre_get_qids(NULL, sb_dqopt(sb)->files[i], i, &id_list);
- if (rc)
- CERROR("read old limits failed. (rc:%d)\n", rc);
-
- cfs_list_for_each_entry_safe(dqid, tmp, &id_list, di_link) {
- cfs_list_del_init(&dqid->di_link);
-
- if (!rc)
- cqget(sb, qctxt->qckt_hash, &qctxt->qckt_list,
- dqid->di_id, i,
- qctxt->qckt_first_check[i]);
- OBD_FREE_PTR(dqid);
- }
- }
- /* turn off quota cause we are to dump chk_dqblk to files */
- quota_onoff(sb, Q_QUOTAOFF, oqc->qc_type, oqc->qc_id);
-
- rc = create_new_quota_files(qctxt, oqc);
- if (rc)
- GOTO(out, rc);
-
- /* we use vfs functions to set dqblk, so turn quota on */
- rc = quota_onoff(sb, Q_QUOTAON, oqc->qc_type, oqc->qc_id);
-out:
- /* dump and free chk_dqblk */
- rc = prune_chkquots(sb, qctxt, rc);
- OBD_FREE_PTR(qctxt);
-
- /* turn off quota, `lfs quotacheck` will turn on when all
- * nodes quotacheck finish. */
- quota_onoff(sb, Q_QUOTAOFF, oqc->qc_type, oqc->qc_id);
-
- oqc->qc_stat = rc;
- if (rc)
- CERROR("quotacheck failed: rc = %d\n", rc);
-
- RETURN(rc);
-}
-
-static int fsfilt_ext3_quotainfo(struct lustre_quota_info *lqi, int type,
- int cmd)
-{
- int rc = 0;
- ENTRY;
-
- if (lqi->qi_files[type] == NULL) {
- CERROR("operate qinfo before it's enabled!\n");
- RETURN(-ESRCH);
- }
-
- switch (cmd) {
- case QFILE_CHK:
- rc = lustre_check_quota_file(lqi, type);
- break;
- case QFILE_RD_INFO:
- rc = lustre_read_quota_info(lqi, type);
- break;
- case QFILE_WR_INFO:
- rc = lustre_write_quota_info(lqi, type);
- break;
- case QFILE_INIT_INFO:
- rc = lustre_init_quota_info(lqi, type);
- break;
- case QFILE_CONVERT:
- rc = -ENOTSUPP;
- CERROR("quota CONVERT command is not supported\n");
- break;
- default:
- rc = -ENOTSUPP;
- CERROR("Unsupported admin quota file cmd %d\n"
- "Are lquota.ko and fsfilt_ldiskfs.ko modules in sync?\n",
- cmd);
- break;
- }
- RETURN(rc);
-}
-
-static int fsfilt_ext3_qids(struct file *file, struct inode *inode, int type,
- cfs_list_t *list)
-{
- return lustre_get_qids(file, inode, type, list);
-}
-
-static int fsfilt_ext3_dquot(struct lustre_dquot *dquot, int cmd)
-{
- int rc = 0;
- ENTRY;
-
- if (dquot->dq_info->qi_files[dquot->dq_type] == NULL) {
- CERROR("operate dquot before it's enabled!\n");
- RETURN(-ESRCH);
- }
-
- switch (cmd) {
- case QFILE_RD_DQUOT:
- rc = lustre_read_dquot(dquot);
- break;
- case QFILE_WR_DQUOT:
- if (dquot->dq_dqb.dqb_ihardlimit ||
- dquot->dq_dqb.dqb_isoftlimit ||
- dquot->dq_dqb.dqb_bhardlimit ||
- dquot->dq_dqb.dqb_bsoftlimit)
- cfs_clear_bit(DQ_FAKE_B, &dquot->dq_flags);
- else
- cfs_set_bit(DQ_FAKE_B, &dquot->dq_flags);
-
- rc = lustre_commit_dquot(dquot);
- if (rc >= 0)
- rc = 0;
- break;
- default:
- CERROR("Unsupported admin quota file cmd %d\n", cmd);
- LBUG();
- break;
- }
- RETURN(rc);
-}
-
-static int fsfilt_ext3_get_mblk(struct super_block *sb, int *count,
- struct inode *inode, int frags)
-{
- struct ext3_ext_base *base = inode;
- /* for an ost_write request, it needs <#fragments> * <tree depth + 1>
- * metablocks at maxium b=16542 */
- *count = frags * (EXT_DEPTH(base) + 1) * EXT3_BLOCK_SIZE(sb);
- return 0;
-}
-
-lvfs_sbdev_type fsfilt_ext3_journal_sbdev(struct super_block *sb)
-{
- return (EXT3_SB(sb)->journal_bdev);
-}
-EXPORT_SYMBOL(fsfilt_ext3_journal_sbdev);
-
-ssize_t lustre_read_quota(struct file *f, struct inode *inode, int type,
- char *buf, int count, loff_t pos)
-{
- loff_t p = pos;
- int rc;
-
- if (!f && !inode) {
- CERROR("lustre_read_quota failed for no quota file!\n");
- libcfs_debug_dumpstack(NULL);
- return -EINVAL;
- }
-
- /* Support for both adm and op quota files must be provided */
- if (f) {
- rc = fsfilt_ext3_read_record(f, buf, count, &p);
- rc = rc < 0 ? rc : p - pos;
- } else {
- struct super_block *sb = inode->i_sb;
- rc = sb->s_op->quota_read(sb, type, buf, count, pos);
- }
- return rc;
-}
-
-ssize_t lustre_write_quota(struct file *f, char *buf, int count, loff_t pos)
-{
- loff_t p = pos;
- int rc;
-
- /* Only adm quota files are supported, op updates are handled by vfs */
- rc = fsfilt_ext3_write_record(f, buf, count, &p, 0);
- rc = rc < 0 ? rc : p - pos;
-
- return rc;
-}
-
-void *lustre_quota_journal_start(struct inode *inode, int delete)
-{
- handle_t *handle;
- unsigned block_count;
-
- if (delete) {
- /* each indirect block (+4) may become free, attaching to the
- * header list of free blocks (+1); the data block (+1) may
- * become a free block (+0) or a block with free dqentries (+0) */
- block_count = (4 + 1) + 1;
- handle = ext3_journal_start(inode,
- block_count*EXT3_DATA_TRANS_BLOCKS(inode->i_sb)+2);
- } else {
- /* indirect blocks are touched (+4), each causes file expansion (+0) or
- * freeblk reusage with a header update (+1); dqentry is either reused
- * causing update of the entry block (+1), prev (+1) and next (+1) or
- * a new block allocation (+1) with a header update (+1) */
- block_count = (4 + 1) + 3;
- handle = ext3_journal_start(inode,
- block_count*EXT3_DATA_TRANS_BLOCKS(inode->i_sb)+2);
-
- }
-
- return handle;
-}
-
-void lustre_quota_journal_stop(void *handle)
-{
- ext3_journal_stop((handle_t *)handle);
-}
-
-static int ll_decode_fh_accept(void *context, struct dentry *de)
-{
- return 1;
-}
-
-#ifdef HAVE_EXPORTFS_DECODE_FH
-# define ll_exportfs_decode_fh(mnt, fid, len, type, acceptable, context) \
- exportfs_decode_fh(mnt, (struct fid*)(fid), len, type, \
- acceptable, context)
-#else
-# define ll_exportfs_decode_fh(mnt, fid, len, type, acceptable, context) \
- export_op_default.decode_fh((mnt)->mnt_sb, &(fid)->ino, len, \
- type, acceptable, context)
-# define FILEID_INO32_GEN 1
-extern struct export_operations export_op_default;
-#endif
-
-struct dentry *fsfilt_ext3_fid2dentry(struct vfsmount *mnt,
- struct fsfilt_fid *fid, int ignore_gen)
-{
- struct inode *inode;
- struct dentry *result;
-
- result = ll_exportfs_decode_fh(mnt, fid, 2, FILEID_INO32_GEN,
- ll_decode_fh_accept, NULL);
- if (IS_ERR(result)) {
- CDEBUG(D_DENTRY, "%s of %u/%u failed %ld\n", __func__,
- fid->ino, fid->gen, PTR_ERR(result));
- return result;
- }
-
- CDEBUG(D_DENTRY, "%s of %u/%u succeeded\n", __func__,
- fid->ino, fid->gen);
- inode = result->d_inode;
- if (inode == NULL)
- goto err_out;
-
- if (inode->i_nlink == 0 &&
- inode->i_mode == 0 && LTIME_S(inode->i_ctime) == 0) {
- LCONSOLE_WARN("Found inode with zero nlink, mode and"
- " ctime -- this may indicate disk "
- "corruption (inode: %lu, link: %lu, "
- "count: %d)\n", inode->i_ino,
- (unsigned long)inode->i_nlink,
- atomic_read(&inode->i_count));
- goto err_out;
- }
- if (fid->gen && inode->i_generation != fid->gen) {
- /* we didn't find the right inode.. */
- CDEBUG(D_INODE, "found wrong generation: inode %lu, link: %lu, "
- "count: %d, generation %u/%u\n",
- inode->i_ino, (unsigned long)inode->i_nlink,
- atomic_read(&inode->i_count), inode->i_generation,
- fid->gen);
- goto err_out;
- }
-
- return result;
-err_out:
- l_dput(result);
- return ERR_PTR(-ENOENT);
-}
-