c8e20be020
Make the inode tree reclaim walk exclusive to avoid races with concurrent sync walkers and lookups. This is a version of a patch posted by Christoph Hellwig that avoids all the code duplication. Signed-off-by: Dave Chinner <david@fromorbit.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Alex Elder <aelder@sgi.com>
60 lines
2.0 KiB
C
60 lines
2.0 KiB
C
/*
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* Copyright (c) 2000-2006 Silicon Graphics, Inc.
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* 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 License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it would 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
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* GNU 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 License
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* along with this program; if not, write the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef XFS_SYNC_H
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#define XFS_SYNC_H 1
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struct xfs_mount;
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struct xfs_perag;
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typedef struct xfs_sync_work {
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struct list_head w_list;
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struct xfs_mount *w_mount;
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void *w_data; /* syncer routine argument */
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void (*w_syncer)(struct xfs_mount *, void *);
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struct completion *w_completion;
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} xfs_sync_work_t;
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#define SYNC_WAIT 0x0001 /* wait for i/o to complete */
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#define SYNC_TRYLOCK 0x0002 /* only try to lock inodes */
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int xfs_syncd_init(struct xfs_mount *mp);
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void xfs_syncd_stop(struct xfs_mount *mp);
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int xfs_sync_attr(struct xfs_mount *mp, int flags);
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int xfs_sync_data(struct xfs_mount *mp, int flags);
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int xfs_sync_fsdata(struct xfs_mount *mp, int flags);
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int xfs_quiesce_data(struct xfs_mount *mp);
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void xfs_quiesce_attr(struct xfs_mount *mp);
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void xfs_flush_inodes(struct xfs_inode *ip);
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int xfs_reclaim_inodes(struct xfs_mount *mp, int mode);
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void xfs_inode_set_reclaim_tag(struct xfs_inode *ip);
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void __xfs_inode_set_reclaim_tag(struct xfs_perag *pag, struct xfs_inode *ip);
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void __xfs_inode_clear_reclaim_tag(struct xfs_mount *mp, struct xfs_perag *pag,
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struct xfs_inode *ip);
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int xfs_sync_inode_valid(struct xfs_inode *ip, struct xfs_perag *pag);
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int xfs_inode_ag_iterator(struct xfs_mount *mp,
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int (*execute)(struct xfs_inode *ip, struct xfs_perag *pag, int flags),
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int flags, int tag, int write_lock);
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#endif
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