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59 lines
1.4 KiB
59 lines
1.4 KiB
/* SPDX-License-Identifier: GPL-2.0-or-later */ |
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/* |
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* Copyright (C) 2019 Oracle. All Rights Reserved. |
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* Author: Darrick J. Wong <[email protected]> |
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*/ |
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#ifndef __XFS_PWORK_H__ |
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#define __XFS_PWORK_H__ |
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struct xfs_pwork; |
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struct xfs_mount; |
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typedef int (*xfs_pwork_work_fn)(struct xfs_mount *mp, struct xfs_pwork *pwork); |
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/* |
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* Parallel work coordination structure. |
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*/ |
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struct xfs_pwork_ctl { |
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struct workqueue_struct *wq; |
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struct xfs_mount *mp; |
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xfs_pwork_work_fn work_fn; |
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struct wait_queue_head poll_wait; |
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atomic_t nr_work; |
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int error; |
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}; |
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/* |
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* Embed this parallel work control item inside your own work structure, |
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* then queue work with it. |
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*/ |
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struct xfs_pwork { |
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struct work_struct work; |
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struct xfs_pwork_ctl *pctl; |
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}; |
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#define XFS_PWORK_SINGLE_THREADED { .pctl = NULL } |
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/* Have we been told to abort? */ |
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static inline bool |
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xfs_pwork_ctl_want_abort( |
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struct xfs_pwork_ctl *pctl) |
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{ |
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return pctl && pctl->error; |
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} |
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/* Have we been told to abort? */ |
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static inline bool |
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xfs_pwork_want_abort( |
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struct xfs_pwork *pwork) |
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{ |
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return xfs_pwork_ctl_want_abort(pwork->pctl); |
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} |
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int xfs_pwork_init(struct xfs_mount *mp, struct xfs_pwork_ctl *pctl, |
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xfs_pwork_work_fn work_fn, const char *tag); |
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void xfs_pwork_queue(struct xfs_pwork_ctl *pctl, struct xfs_pwork *pwork); |
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int xfs_pwork_destroy(struct xfs_pwork_ctl *pctl); |
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void xfs_pwork_poll(struct xfs_pwork_ctl *pctl); |
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#endif /* __XFS_PWORK_H__ */
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