D30218.id89043.diff
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	Index: share/man/man9/VFS_QUOTACTL.9
	===================================================================
	--- share/man/man9/VFS_QUOTACTL.9
	+++ share/man/man9/VFS_QUOTACTL.9
	@@ -45,6 +45,19 @@
	See
	.Xr quotactl 2
	for a description of the arguments.
	+.Pp
	+The VFS_QUOTACTL macro is called with
	+.Fa mp
	+busied through
	+.Xr vfs_busy 9 .
	+For the Q_QUOTAON and Q_QUOTAOFF commands, the filesystem-specific
	+implementation of VFS_QUOTACTL must clear the busy state on
	+.Fa mp
	+by calling
	+.Xr vfs_unbusy 9
	+prior to performing any quota file access and must return with
	+.Fa mp
	+no longer busy.
	.Sh SEE ALSO
	.Xr quotactl 2 ,
	.Xr vnode 9
	Index: sys/kern/vfs_default.c
	===================================================================
	--- sys/kern/vfs_default.c
	+++ sys/kern/vfs_default.c
	@@ -63,6 +63,8 @@

	#include <security/mac/mac_framework.h>

	+#include <ufs/ufs/quota.h>
	+
	#include <vm/vm.h>
	#include <vm/vm_object.h>
	#include <vm/vm_extern.h>
	@@ -1328,6 +1330,12 @@
	uid_t uid;
	void *arg;
	{
	+ int cmd;
	+
	+ cmd = cmds >> SUBCMDSHIFT;
	+
	+ if (cmd == Q_QUOTAON \|\| cmd == Q_QUOTAOFF)
	+ vfs_unbusy(mp);

	return (EOPNOTSUPP);
	}