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68 lines
1.9 KiB
68 lines
1.9 KiB
// SPDX-License-Identifier: GPL-2.0 |
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/* |
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* Copyright (c) 2000-2002,2005 Silicon Graphics, Inc. |
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* Copyright (c) 2010 David Chinner. |
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* Copyright (c) 2011 Christoph Hellwig. |
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* All Rights Reserved. |
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*/ |
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#ifndef __XFS_EXTENT_BUSY_H__ |
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#define __XFS_EXTENT_BUSY_H__ |
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struct xfs_mount; |
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struct xfs_trans; |
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struct xfs_alloc_arg; |
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/* |
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* Busy block/extent entry. Indexed by a rbtree in perag to mark blocks that |
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* have been freed but whose transactions aren't committed to disk yet. |
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* |
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* Note that we use the transaction ID to record the transaction, not the |
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* transaction structure itself. See xfs_extent_busy_insert() for details. |
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*/ |
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struct xfs_extent_busy { |
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struct rb_node rb_node; /* ag by-bno indexed search tree */ |
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struct list_head list; /* transaction busy extent list */ |
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xfs_agnumber_t agno; |
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xfs_agblock_t bno; |
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xfs_extlen_t length; |
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unsigned int flags; |
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#define XFS_EXTENT_BUSY_DISCARDED 0x01 /* undergoing a discard op. */ |
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#define XFS_EXTENT_BUSY_SKIP_DISCARD 0x02 /* do not discard */ |
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}; |
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void |
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xfs_extent_busy_insert(struct xfs_trans *tp, xfs_agnumber_t agno, |
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xfs_agblock_t bno, xfs_extlen_t len, unsigned int flags); |
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void |
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xfs_extent_busy_clear(struct xfs_mount *mp, struct list_head *list, |
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bool do_discard); |
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int |
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xfs_extent_busy_search(struct xfs_mount *mp, xfs_agnumber_t agno, |
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xfs_agblock_t bno, xfs_extlen_t len); |
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void |
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xfs_extent_busy_reuse(struct xfs_mount *mp, xfs_agnumber_t agno, |
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xfs_agblock_t fbno, xfs_extlen_t flen, bool userdata); |
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bool |
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xfs_extent_busy_trim(struct xfs_alloc_arg *args, xfs_agblock_t *bno, |
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xfs_extlen_t *len, unsigned *busy_gen); |
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void |
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xfs_extent_busy_flush(struct xfs_mount *mp, struct xfs_perag *pag, |
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unsigned busy_gen); |
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void |
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xfs_extent_busy_wait_all(struct xfs_mount *mp); |
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int |
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xfs_extent_busy_ag_cmp(void *priv, struct list_head *a, struct list_head *b); |
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static inline void xfs_extent_busy_sort(struct list_head *list) |
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{ |
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list_sort(NULL, list, xfs_extent_busy_ag_cmp); |
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} |
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#endif /* __XFS_EXTENT_BUSY_H__ */
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