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xfs: don't block the log commit handler for discards

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Instead we submit the discard requests and use another workqueue to
release the extents from the extent busy list.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
This commit is contained in:
Christoph Hellwig
2017-02-07 14:07:58 -08:00
committed by Darrick J. Wong
parent 4669412981
commit 4560e78f40
7 changed files with 88 additions and 38 deletions
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2
fs/xfs/xfs_super.h
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@ -73,6 +73,8 @@ extern const struct quotactl_ops xfs_quotactl_operations;
extern void xfs_reinit_percpu_counters(struct xfs_mount *mp);
extern struct workqueue_struct *xfs_discard_wq;
#define XFS_M(sb) ((struct xfs_mount *)((sb)->s_fs_info))
#endif /* __XFS_SUPER_H__ */