add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/fs/xfs/xfs_sysctl.h
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@@ -82,9 +82,13 @@
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 extern xfs_param_t	xfs_params;
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 struct xfs_globals {
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+#ifdef DEBUG
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+	int	pwork_threads;		/* parallel workqueue threads */
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+#endif
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 	int	log_recovery_delay;	/* log recovery delay (secs) */
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 	int	mount_delay;		/* mount setup delay (secs) */
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 	bool	bug_on_assert;		/* BUG() the kernel on assert failure */
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+	bool	always_cow;		/* use COW fork for all overwrites */
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 };
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 extern struct xfs_globals	xfs_globals;
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