fb951eb5e1
Even if using the same jbd2 handle, we cannot rollback a transaction. So once some error occurs after successfully allocating clusters, the allocated clusters will never be used and it means they are lost. For example, call ocfs2_claim_clusters successfully when expanding a file, but failed in ocfs2_insert_extent. So we need free the allocated clusters if they are not used indeed. Signed-off-by: Zongxun Wang <wangzongxun@huawei.com> Signed-off-by: Joseph Qi <joseph.qi@huawei.com> Acked-by: Joel Becker <jlbec@evilplan.org> Cc: Mark Fasheh <mfasheh@suse.com> Cc: Li Zefan <lizefan@huawei.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
69 lines
2.1 KiB
C
69 lines
2.1 KiB
C
/* -*- 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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* localalloc.h
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*
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* Function prototypes
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*
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* Copyright (C) 2002, 2004 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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#ifndef OCFS2_LOCALALLOC_H
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#define OCFS2_LOCALALLOC_H
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int ocfs2_load_local_alloc(struct ocfs2_super *osb);
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void ocfs2_shutdown_local_alloc(struct ocfs2_super *osb);
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void ocfs2_la_set_sizes(struct ocfs2_super *osb, int requested_mb);
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unsigned int ocfs2_la_default_mb(struct ocfs2_super *osb);
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int ocfs2_begin_local_alloc_recovery(struct ocfs2_super *osb,
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int node_num,
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struct ocfs2_dinode **alloc_copy);
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int ocfs2_complete_local_alloc_recovery(struct ocfs2_super *osb,
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struct ocfs2_dinode *alloc);
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int ocfs2_alloc_should_use_local(struct ocfs2_super *osb,
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u64 bits);
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struct ocfs2_alloc_context;
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int ocfs2_reserve_local_alloc_bits(struct ocfs2_super *osb,
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u32 bits_wanted,
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struct ocfs2_alloc_context *ac);
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int ocfs2_claim_local_alloc_bits(struct ocfs2_super *osb,
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handle_t *handle,
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struct ocfs2_alloc_context *ac,
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u32 bits_wanted,
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u32 *bit_off,
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u32 *num_bits);
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int ocfs2_free_local_alloc_bits(struct ocfs2_super *osb,
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handle_t *handle,
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struct ocfs2_alloc_context *ac,
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u32 bit_off,
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u32 num_bits);
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void ocfs2_local_alloc_seen_free_bits(struct ocfs2_super *osb,
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unsigned int num_clusters);
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void ocfs2_la_enable_worker(struct work_struct *work);
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#endif /* OCFS2_LOCALALLOC_H */
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