D3547.id8411.diff
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	Index: sys/vm/swap_pager.c
	===================================================================
	--- sys/vm/swap_pager.c
	+++ sys/vm/swap_pager.c
	@@ -2580,6 +2580,9 @@
	else
	bio = g_alloc_bio();
	if (bio == NULL) {
	+ mtx_lock(&sw_dev_mtx);
	+ cp->index--;
	+ mtx_unlock(&sw_dev_mtx);
	bp->b_error = ENOMEM;
	bp->b_ioflags \|= BIO_ERROR;
	bufdone(bp);
	@@ -2682,6 +2685,7 @@
	cp = g_new_consumer(gp);
	cp->index = 0; /* Number of active I/Os. */
	cp->private = NULL; /* Orphanization flag */
	+ cp->flags \|= G_CF_DIRECT_SEND \| G_CF_DIRECT_RECEIVE;
	g_attach(cp, pp);
	/*
	* XXX: Everytime you think you can improve the margin for