599 lines
16 KiB
C
599 lines
16 KiB
C
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/* -*- mode: c; c-basic-offset: 8; -*-
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* vim: noexpandtab sw=8 ts=8 sts=0:
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*
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* resize.c
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*
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* volume resize.
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* Inspired by ext3/resize.c.
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*
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* Copyright (C) 2007 Oracle. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public
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* License along with this program; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 021110-1307, USA.
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*/
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#include <linux/fs.h>
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#include <linux/types.h>
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#include <cluster/masklog.h>
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#include "ocfs2.h"
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#include "alloc.h"
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#include "dlmglue.h"
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#include "inode.h"
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#include "journal.h"
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#include "super.h"
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#include "sysfile.h"
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#include "uptodate.h"
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#include "ocfs2_trace.h"
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#include "buffer_head_io.h"
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#include "suballoc.h"
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#include "resize.h"
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/*
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* Check whether there are new backup superblocks exist
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* in the last group. If there are some, mark them or clear
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* them in the bitmap.
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*
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* Return how many backups we find in the last group.
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*/
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static u16 ocfs2_calc_new_backup_super(struct inode *inode,
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struct ocfs2_group_desc *gd,
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u16 cl_cpg,
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u16 old_bg_clusters,
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int set)
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{
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int i;
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u16 backups = 0;
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u32 cluster, lgd_cluster;
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u64 blkno, gd_blkno, lgd_blkno = le64_to_cpu(gd->bg_blkno);
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for (i = 0; i < OCFS2_MAX_BACKUP_SUPERBLOCKS; i++) {
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blkno = ocfs2_backup_super_blkno(inode->i_sb, i);
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cluster = ocfs2_blocks_to_clusters(inode->i_sb, blkno);
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gd_blkno = ocfs2_which_cluster_group(inode, cluster);
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if (gd_blkno < lgd_blkno)
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continue;
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else if (gd_blkno > lgd_blkno)
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break;
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/* check if already done backup super */
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lgd_cluster = ocfs2_blocks_to_clusters(inode->i_sb, lgd_blkno);
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lgd_cluster += old_bg_clusters;
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if (lgd_cluster >= cluster)
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continue;
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if (set)
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ocfs2_set_bit(cluster % cl_cpg,
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(unsigned long *)gd->bg_bitmap);
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else
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ocfs2_clear_bit(cluster % cl_cpg,
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(unsigned long *)gd->bg_bitmap);
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backups++;
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}
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return backups;
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}
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static int ocfs2_update_last_group_and_inode(handle_t *handle,
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struct inode *bm_inode,
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struct buffer_head *bm_bh,
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struct buffer_head *group_bh,
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u32 first_new_cluster,
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int new_clusters)
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{
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int ret = 0;
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struct ocfs2_super *osb = OCFS2_SB(bm_inode->i_sb);
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struct ocfs2_dinode *fe = (struct ocfs2_dinode *) bm_bh->b_data;
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struct ocfs2_chain_list *cl = &fe->id2.i_chain;
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struct ocfs2_chain_rec *cr;
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struct ocfs2_group_desc *group;
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u16 chain, num_bits, backups = 0;
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u16 cl_bpc = le16_to_cpu(cl->cl_bpc);
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u16 cl_cpg = le16_to_cpu(cl->cl_cpg);
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u16 old_bg_clusters;
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trace_ocfs2_update_last_group_and_inode(new_clusters,
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first_new_cluster);
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ret = ocfs2_journal_access_gd(handle, INODE_CACHE(bm_inode),
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group_bh, OCFS2_JOURNAL_ACCESS_WRITE);
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if (ret < 0) {
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mlog_errno(ret);
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goto out;
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}
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group = (struct ocfs2_group_desc *)group_bh->b_data;
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old_bg_clusters = le16_to_cpu(group->bg_bits) / cl_bpc;
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/* update the group first. */
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num_bits = new_clusters * cl_bpc;
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le16_add_cpu(&group->bg_bits, num_bits);
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le16_add_cpu(&group->bg_free_bits_count, num_bits);
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/*
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* check whether there are some new backup superblocks exist in
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* this group and update the group bitmap accordingly.
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*/
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if (OCFS2_HAS_COMPAT_FEATURE(osb->sb,
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OCFS2_FEATURE_COMPAT_BACKUP_SB)) {
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backups = ocfs2_calc_new_backup_super(bm_inode,
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group,
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cl_cpg, old_bg_clusters, 1);
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le16_add_cpu(&group->bg_free_bits_count, -1 * backups);
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}
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ocfs2_journal_dirty(handle, group_bh);
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/* update the inode accordingly. */
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ret = ocfs2_journal_access_di(handle, INODE_CACHE(bm_inode), bm_bh,
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OCFS2_JOURNAL_ACCESS_WRITE);
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if (ret < 0) {
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mlog_errno(ret);
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goto out_rollback;
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}
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chain = le16_to_cpu(group->bg_chain);
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cr = (&cl->cl_recs[chain]);
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le32_add_cpu(&cr->c_total, num_bits);
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le32_add_cpu(&cr->c_free, num_bits);
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le32_add_cpu(&fe->id1.bitmap1.i_total, num_bits);
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le32_add_cpu(&fe->i_clusters, new_clusters);
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if (backups) {
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le32_add_cpu(&cr->c_free, -1 * backups);
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le32_add_cpu(&fe->id1.bitmap1.i_used, backups);
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}
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spin_lock(&OCFS2_I(bm_inode)->ip_lock);
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OCFS2_I(bm_inode)->ip_clusters = le32_to_cpu(fe->i_clusters);
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le64_add_cpu(&fe->i_size, (u64)new_clusters << osb->s_clustersize_bits);
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spin_unlock(&OCFS2_I(bm_inode)->ip_lock);
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i_size_write(bm_inode, le64_to_cpu(fe->i_size));
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ocfs2_journal_dirty(handle, bm_bh);
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out_rollback:
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if (ret < 0) {
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ocfs2_calc_new_backup_super(bm_inode,
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group,
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cl_cpg, old_bg_clusters, 0);
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le16_add_cpu(&group->bg_free_bits_count, backups);
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le16_add_cpu(&group->bg_bits, -1 * num_bits);
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le16_add_cpu(&group->bg_free_bits_count, -1 * num_bits);
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}
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out:
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if (ret)
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mlog_errno(ret);
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return ret;
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}
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static int update_backups(struct inode * inode, u32 clusters, char *data)
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{
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int i, ret = 0;
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u32 cluster;
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u64 blkno;
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struct buffer_head *backup = NULL;
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struct ocfs2_dinode *backup_di = NULL;
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struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
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/* calculate the real backups we need to update. */
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for (i = 0; i < OCFS2_MAX_BACKUP_SUPERBLOCKS; i++) {
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blkno = ocfs2_backup_super_blkno(inode->i_sb, i);
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cluster = ocfs2_blocks_to_clusters(inode->i_sb, blkno);
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if (cluster >= clusters)
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break;
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ret = ocfs2_read_blocks_sync(osb, blkno, 1, &backup);
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if (ret < 0) {
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mlog_errno(ret);
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break;
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}
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memcpy(backup->b_data, data, inode->i_sb->s_blocksize);
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backup_di = (struct ocfs2_dinode *)backup->b_data;
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backup_di->i_blkno = cpu_to_le64(blkno);
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ret = ocfs2_write_super_or_backup(osb, backup);
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brelse(backup);
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backup = NULL;
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if (ret < 0) {
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mlog_errno(ret);
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break;
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}
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}
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return ret;
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}
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static void ocfs2_update_super_and_backups(struct inode *inode,
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int new_clusters)
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{
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int ret;
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u32 clusters = 0;
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struct buffer_head *super_bh = NULL;
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struct ocfs2_dinode *super_di = NULL;
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struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
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/*
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* update the superblock last.
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* It doesn't matter if the write failed.
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*/
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ret = ocfs2_read_blocks_sync(osb, OCFS2_SUPER_BLOCK_BLKNO, 1,
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&super_bh);
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if (ret < 0) {
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mlog_errno(ret);
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goto out;
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}
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super_di = (struct ocfs2_dinode *)super_bh->b_data;
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le32_add_cpu(&super_di->i_clusters, new_clusters);
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clusters = le32_to_cpu(super_di->i_clusters);
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ret = ocfs2_write_super_or_backup(osb, super_bh);
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if (ret < 0) {
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mlog_errno(ret);
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goto out;
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}
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if (OCFS2_HAS_COMPAT_FEATURE(osb->sb, OCFS2_FEATURE_COMPAT_BACKUP_SB))
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ret = update_backups(inode, clusters, super_bh->b_data);
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out:
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brelse(super_bh);
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if (ret)
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printk(KERN_WARNING "ocfs2: Failed to update super blocks on %s"
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" during fs resize. This condition is not fatal,"
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" but fsck.ocfs2 should be run to fix it\n",
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osb->dev_str);
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return;
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}
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/*
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* Extend the filesystem to the new number of clusters specified. This entry
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* point is only used to extend the current filesystem to the end of the last
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* existing group.
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*/
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int ocfs2_group_extend(struct inode * inode, int new_clusters)
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{
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int ret;
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handle_t *handle;
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struct buffer_head *main_bm_bh = NULL;
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struct buffer_head *group_bh = NULL;
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struct inode *main_bm_inode = NULL;
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struct ocfs2_dinode *fe = NULL;
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struct ocfs2_group_desc *group = NULL;
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struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
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u16 cl_bpc;
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u32 first_new_cluster;
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u64 lgd_blkno;
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if (ocfs2_is_hard_readonly(osb) || ocfs2_is_soft_readonly(osb))
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return -EROFS;
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if (new_clusters < 0)
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return -EINVAL;
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else if (new_clusters == 0)
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return 0;
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main_bm_inode = ocfs2_get_system_file_inode(osb,
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GLOBAL_BITMAP_SYSTEM_INODE,
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OCFS2_INVALID_SLOT);
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if (!main_bm_inode) {
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ret = -EINVAL;
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mlog_errno(ret);
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goto out;
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}
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inode_lock(main_bm_inode);
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ret = ocfs2_inode_lock(main_bm_inode, &main_bm_bh, 1);
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if (ret < 0) {
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mlog_errno(ret);
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goto out_mutex;
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}
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fe = (struct ocfs2_dinode *)main_bm_bh->b_data;
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/* main_bm_bh is validated by inode read inside ocfs2_inode_lock(),
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* so any corruption is a code bug. */
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BUG_ON(!OCFS2_IS_VALID_DINODE(fe));
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if (le16_to_cpu(fe->id2.i_chain.cl_cpg) !=
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ocfs2_group_bitmap_size(osb->sb, 0,
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osb->s_feature_incompat) * 8) {
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mlog(ML_ERROR, "The disk is too old and small. "
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"Force to do offline resize.");
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ret = -EINVAL;
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goto out_unlock;
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}
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first_new_cluster = le32_to_cpu(fe->i_clusters);
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lgd_blkno = ocfs2_which_cluster_group(main_bm_inode,
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first_new_cluster - 1);
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ret = ocfs2_read_group_descriptor(main_bm_inode, fe, lgd_blkno,
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&group_bh);
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if (ret < 0) {
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mlog_errno(ret);
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goto out_unlock;
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}
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group = (struct ocfs2_group_desc *)group_bh->b_data;
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cl_bpc = le16_to_cpu(fe->id2.i_chain.cl_bpc);
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if (le16_to_cpu(group->bg_bits) / cl_bpc + new_clusters >
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le16_to_cpu(fe->id2.i_chain.cl_cpg)) {
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ret = -EINVAL;
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goto out_unlock;
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}
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trace_ocfs2_group_extend(
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(unsigned long long)le64_to_cpu(group->bg_blkno), new_clusters);
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handle = ocfs2_start_trans(osb, OCFS2_GROUP_EXTEND_CREDITS);
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if (IS_ERR(handle)) {
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mlog_errno(PTR_ERR(handle));
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ret = -EINVAL;
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goto out_unlock;
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}
|
||
|
|
|
||
|
|
/* update the last group descriptor and inode. */
|
||
|
|
ret = ocfs2_update_last_group_and_inode(handle, main_bm_inode,
|
||
|
|
main_bm_bh, group_bh,
|
||
|
|
first_new_cluster,
|
||
|
|
new_clusters);
|
||
|
|
if (ret) {
|
||
|
|
mlog_errno(ret);
|
||
|
|
goto out_commit;
|
||
|
|
}
|
||
|
|
|
||
|
|
ocfs2_update_super_and_backups(main_bm_inode, new_clusters);
|
||
|
|
|
||
|
|
out_commit:
|
||
|
|
ocfs2_commit_trans(osb, handle);
|
||
|
|
out_unlock:
|
||
|
|
brelse(group_bh);
|
||
|
|
brelse(main_bm_bh);
|
||
|
|
|
||
|
|
ocfs2_inode_unlock(main_bm_inode, 1);
|
||
|
|
|
||
|
|
out_mutex:
|
||
|
|
inode_unlock(main_bm_inode);
|
||
|
|
iput(main_bm_inode);
|
||
|
|
|
||
|
|
out:
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int ocfs2_check_new_group(struct inode *inode,
|
||
|
|
struct ocfs2_dinode *di,
|
||
|
|
struct ocfs2_new_group_input *input,
|
||
|
|
struct buffer_head *group_bh)
|
||
|
|
{
|
||
|
|
int ret;
|
||
|
|
struct ocfs2_group_desc *gd =
|
||
|
|
(struct ocfs2_group_desc *)group_bh->b_data;
|
||
|
|
u16 cl_bpc = le16_to_cpu(di->id2.i_chain.cl_bpc);
|
||
|
|
|
||
|
|
ret = ocfs2_check_group_descriptor(inode->i_sb, di, group_bh);
|
||
|
|
if (ret)
|
||
|
|
goto out;
|
||
|
|
|
||
|
|
ret = -EINVAL;
|
||
|
|
if (le16_to_cpu(gd->bg_chain) != input->chain)
|
||
|
|
mlog(ML_ERROR, "Group descriptor # %llu has bad chain %u "
|
||
|
|
"while input has %u set.\n",
|
||
|
|
(unsigned long long)le64_to_cpu(gd->bg_blkno),
|
||
|
|
le16_to_cpu(gd->bg_chain), input->chain);
|
||
|
|
else if (le16_to_cpu(gd->bg_bits) != input->clusters * cl_bpc)
|
||
|
|
mlog(ML_ERROR, "Group descriptor # %llu has bit count %u but "
|
||
|
|
"input has %u clusters set\n",
|
||
|
|
(unsigned long long)le64_to_cpu(gd->bg_blkno),
|
||
|
|
le16_to_cpu(gd->bg_bits), input->clusters);
|
||
|
|
else if (le16_to_cpu(gd->bg_free_bits_count) != input->frees * cl_bpc)
|
||
|
|
mlog(ML_ERROR, "Group descriptor # %llu has free bit count %u "
|
||
|
|
"but it should have %u set\n",
|
||
|
|
(unsigned long long)le64_to_cpu(gd->bg_blkno),
|
||
|
|
le16_to_cpu(gd->bg_bits),
|
||
|
|
input->frees * cl_bpc);
|
||
|
|
else
|
||
|
|
ret = 0;
|
||
|
|
|
||
|
|
out:
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int ocfs2_verify_group_and_input(struct inode *inode,
|
||
|
|
struct ocfs2_dinode *di,
|
||
|
|
struct ocfs2_new_group_input *input,
|
||
|
|
struct buffer_head *group_bh)
|
||
|
|
{
|
||
|
|
u16 cl_count = le16_to_cpu(di->id2.i_chain.cl_count);
|
||
|
|
u16 cl_cpg = le16_to_cpu(di->id2.i_chain.cl_cpg);
|
||
|
|
u16 next_free = le16_to_cpu(di->id2.i_chain.cl_next_free_rec);
|
||
|
|
u32 cluster = ocfs2_blocks_to_clusters(inode->i_sb, input->group);
|
||
|
|
u32 total_clusters = le32_to_cpu(di->i_clusters);
|
||
|
|
int ret = -EINVAL;
|
||
|
|
|
||
|
|
if (cluster < total_clusters)
|
||
|
|
mlog(ML_ERROR, "add a group which is in the current volume.\n");
|
||
|
|
else if (input->chain >= cl_count)
|
||
|
|
mlog(ML_ERROR, "input chain exceeds the limit.\n");
|
||
|
|
else if (next_free != cl_count && next_free != input->chain)
|
||
|
|
mlog(ML_ERROR,
|
||
|
|
"the add group should be in chain %u\n", next_free);
|
||
|
|
else if (total_clusters + input->clusters < total_clusters)
|
||
|
|
mlog(ML_ERROR, "add group's clusters overflow.\n");
|
||
|
|
else if (input->clusters > cl_cpg)
|
||
|
|
mlog(ML_ERROR, "the cluster exceeds the maximum of a group\n");
|
||
|
|
else if (input->frees > input->clusters)
|
||
|
|
mlog(ML_ERROR, "the free cluster exceeds the total clusters\n");
|
||
|
|
else if (total_clusters % cl_cpg != 0)
|
||
|
|
mlog(ML_ERROR,
|
||
|
|
"the last group isn't full. Use group extend first.\n");
|
||
|
|
else if (input->group != ocfs2_which_cluster_group(inode, cluster))
|
||
|
|
mlog(ML_ERROR, "group blkno is invalid\n");
|
||
|
|
else if ((ret = ocfs2_check_new_group(inode, di, input, group_bh)))
|
||
|
|
mlog(ML_ERROR, "group descriptor check failed.\n");
|
||
|
|
else
|
||
|
|
ret = 0;
|
||
|
|
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Add a new group descriptor to global_bitmap. */
|
||
|
|
int ocfs2_group_add(struct inode *inode, struct ocfs2_new_group_input *input)
|
||
|
|
{
|
||
|
|
int ret;
|
||
|
|
handle_t *handle;
|
||
|
|
struct buffer_head *main_bm_bh = NULL;
|
||
|
|
struct inode *main_bm_inode = NULL;
|
||
|
|
struct ocfs2_dinode *fe = NULL;
|
||
|
|
struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
|
||
|
|
struct buffer_head *group_bh = NULL;
|
||
|
|
struct ocfs2_group_desc *group = NULL;
|
||
|
|
struct ocfs2_chain_list *cl;
|
||
|
|
struct ocfs2_chain_rec *cr;
|
||
|
|
u16 cl_bpc;
|
||
|
|
u64 bg_ptr;
|
||
|
|
|
||
|
|
if (ocfs2_is_hard_readonly(osb) || ocfs2_is_soft_readonly(osb))
|
||
|
|
return -EROFS;
|
||
|
|
|
||
|
|
main_bm_inode = ocfs2_get_system_file_inode(osb,
|
||
|
|
GLOBAL_BITMAP_SYSTEM_INODE,
|
||
|
|
OCFS2_INVALID_SLOT);
|
||
|
|
if (!main_bm_inode) {
|
||
|
|
ret = -EINVAL;
|
||
|
|
mlog_errno(ret);
|
||
|
|
goto out;
|
||
|
|
}
|
||
|
|
|
||
|
|
inode_lock(main_bm_inode);
|
||
|
|
|
||
|
|
ret = ocfs2_inode_lock(main_bm_inode, &main_bm_bh, 1);
|
||
|
|
if (ret < 0) {
|
||
|
|
mlog_errno(ret);
|
||
|
|
goto out_mutex;
|
||
|
|
}
|
||
|
|
|
||
|
|
fe = (struct ocfs2_dinode *)main_bm_bh->b_data;
|
||
|
|
|
||
|
|
if (le16_to_cpu(fe->id2.i_chain.cl_cpg) !=
|
||
|
|
ocfs2_group_bitmap_size(osb->sb, 0,
|
||
|
|
osb->s_feature_incompat) * 8) {
|
||
|
|
mlog(ML_ERROR, "The disk is too old and small."
|
||
|
|
" Force to do offline resize.");
|
||
|
|
ret = -EINVAL;
|
||
|
|
goto out_unlock;
|
||
|
|
}
|
||
|
|
|
||
|
|
ret = ocfs2_read_blocks_sync(osb, input->group, 1, &group_bh);
|
||
|
|
if (ret < 0) {
|
||
|
|
mlog(ML_ERROR, "Can't read the group descriptor # %llu "
|
||
|
|
"from the device.", (unsigned long long)input->group);
|
||
|
|
goto out_unlock;
|
||
|
|
}
|
||
|
|
|
||
|
|
ocfs2_set_new_buffer_uptodate(INODE_CACHE(inode), group_bh);
|
||
|
|
|
||
|
|
ret = ocfs2_verify_group_and_input(main_bm_inode, fe, input, group_bh);
|
||
|
|
if (ret) {
|
||
|
|
mlog_errno(ret);
|
||
|
|
goto out_free_group_bh;
|
||
|
|
}
|
||
|
|
|
||
|
|
trace_ocfs2_group_add((unsigned long long)input->group,
|
||
|
|
input->chain, input->clusters, input->frees);
|
||
|
|
|
||
|
|
handle = ocfs2_start_trans(osb, OCFS2_GROUP_ADD_CREDITS);
|
||
|
|
if (IS_ERR(handle)) {
|
||
|
|
mlog_errno(PTR_ERR(handle));
|
||
|
|
ret = -EINVAL;
|
||
|
|
goto out_free_group_bh;
|
||
|
|
}
|
||
|
|
|
||
|
|
cl_bpc = le16_to_cpu(fe->id2.i_chain.cl_bpc);
|
||
|
|
cl = &fe->id2.i_chain;
|
||
|
|
cr = &cl->cl_recs[input->chain];
|
||
|
|
|
||
|
|
ret = ocfs2_journal_access_gd(handle, INODE_CACHE(main_bm_inode),
|
||
|
|
group_bh, OCFS2_JOURNAL_ACCESS_WRITE);
|
||
|
|
if (ret < 0) {
|
||
|
|
mlog_errno(ret);
|
||
|
|
goto out_commit;
|
||
|
|
}
|
||
|
|
|
||
|
|
group = (struct ocfs2_group_desc *)group_bh->b_data;
|
||
|
|
bg_ptr = le64_to_cpu(group->bg_next_group);
|
||
|
|
group->bg_next_group = cr->c_blkno;
|
||
|
|
ocfs2_journal_dirty(handle, group_bh);
|
||
|
|
|
||
|
|
ret = ocfs2_journal_access_di(handle, INODE_CACHE(main_bm_inode),
|
||
|
|
main_bm_bh, OCFS2_JOURNAL_ACCESS_WRITE);
|
||
|
|
if (ret < 0) {
|
||
|
|
group->bg_next_group = cpu_to_le64(bg_ptr);
|
||
|
|
mlog_errno(ret);
|
||
|
|
goto out_commit;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (input->chain == le16_to_cpu(cl->cl_next_free_rec)) {
|
||
|
|
le16_add_cpu(&cl->cl_next_free_rec, 1);
|
||
|
|
memset(cr, 0, sizeof(struct ocfs2_chain_rec));
|
||
|
|
}
|
||
|
|
|
||
|
|
cr->c_blkno = cpu_to_le64(input->group);
|
||
|
|
le32_add_cpu(&cr->c_total, input->clusters * cl_bpc);
|
||
|
|
le32_add_cpu(&cr->c_free, input->frees * cl_bpc);
|
||
|
|
|
||
|
|
le32_add_cpu(&fe->id1.bitmap1.i_total, input->clusters *cl_bpc);
|
||
|
|
le32_add_cpu(&fe->id1.bitmap1.i_used,
|
||
|
|
(input->clusters - input->frees) * cl_bpc);
|
||
|
|
le32_add_cpu(&fe->i_clusters, input->clusters);
|
||
|
|
|
||
|
|
ocfs2_journal_dirty(handle, main_bm_bh);
|
||
|
|
|
||
|
|
spin_lock(&OCFS2_I(main_bm_inode)->ip_lock);
|
||
|
|
OCFS2_I(main_bm_inode)->ip_clusters = le32_to_cpu(fe->i_clusters);
|
||
|
|
le64_add_cpu(&fe->i_size, (u64)input->clusters << osb->s_clustersize_bits);
|
||
|
|
spin_unlock(&OCFS2_I(main_bm_inode)->ip_lock);
|
||
|
|
i_size_write(main_bm_inode, le64_to_cpu(fe->i_size));
|
||
|
|
|
||
|
|
ocfs2_update_super_and_backups(main_bm_inode, input->clusters);
|
||
|
|
|
||
|
|
out_commit:
|
||
|
|
ocfs2_commit_trans(osb, handle);
|
||
|
|
|
||
|
|
out_free_group_bh:
|
||
|
|
brelse(group_bh);
|
||
|
|
|
||
|
|
out_unlock:
|
||
|
|
brelse(main_bm_bh);
|
||
|
|
|
||
|
|
ocfs2_inode_unlock(main_bm_inode, 1);
|
||
|
|
|
||
|
|
out_mutex:
|
||
|
|
inode_unlock(main_bm_inode);
|
||
|
|
iput(main_bm_inode);
|
||
|
|
|
||
|
|
out:
|
||
|
|
return ret;
|
||
|
|
}
|