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Provide dummy sysctls for v_cache_count and v_tcached.
Some utilities (notably top(1)) exit if any of their input sysctls don't exist, and the removal of the above-mentioned PG_CACHE-related sysctls makes it difficult to run such utilities on different versions of the kernel without recompiling. Requested by: bde
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Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=309658
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@ -314,3 +314,14 @@ VM_STATS_VM(v_forkpages, "VM pages affected by fork()");
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VM_STATS_VM(v_vforkpages, "VM pages affected by vfork()");
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VM_STATS_VM(v_rforkpages, "VM pages affected by rfork()");
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VM_STATS_VM(v_kthreadpages, "VM pages affected by fork() by kernel");
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#ifndef BURN_BRIDGES
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/*
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* Provide compatibility sysctls for the benefit of old utilities which exit
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* with an error if they cannot be found.
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*/
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SYSCTL_UINT(_vm_stats_vm, OID_AUTO, v_cache_count, CTLFLAG_RD,
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(u_int *)NULL, 0, "Dummy for compatibility");
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SYSCTL_UINT(_vm_stats_vm, OID_AUTO, v_tcached, CTLFLAG_RD,
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(u_int *)NULL, 0, "Dummy for compatibility");
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#endif
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