forked from luck/tmp_suning_uos_patched
53069d4e76
the basic logic of moving extents for a file is pretty like punching-hole sequence, walk the extents within the range as user specified, calculating an appropriate len to defrag/move, then let ocfs2_defrag/move_extent() to do the actual moving. This func ends up setting 'OCFS2_MOVE_EXT_FL_COMPLETE' to userpace if operation gets done successfully. Signed-off-by: Tristan Ye <tristan.ye@oracle.com>
23 lines
758 B
C
23 lines
758 B
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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* move_extents.h
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*
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* Copyright (C) 2011 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 version 2 as published by the Free Software Foundation.
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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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#ifndef OCFS2_MOVE_EXTENTS_H
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#define OCFS2_MOVE_EXTENTS_H
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int ocfs2_ioctl_move_extents(struct file *filp, void __user *argp);
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#endif /* OCFS2_MOVE_EXTENTS_H */
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