From 91f7a86064f9decd1d6f5451caf3c20b834e64a4 Mon Sep 17 00:00:00 2001 From: Alan Cox Date: Mon, 27 Dec 2004 05:27:59 +0000 Subject: [PATCH] Note that access to the page's busy count is synchronized by the containing object's lock. --- sys/vm/vm_page.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sys/vm/vm_page.h b/sys/vm/vm_page.h index 9c9cfba96bdf..9290994f9fc1 100644 --- a/sys/vm/vm_page.h +++ b/sys/vm/vm_page.h @@ -121,7 +121,7 @@ struct vm_page { u_int cow; /* page cow mapping count */ short hold_count; /* page hold count */ u_char act_count; /* page usage count */ - u_char busy; /* page busy count */ + u_char busy; /* page busy count (O) */ /* NOTE that these must support one bit per DEV_BSIZE in a page!!! */ /* so, on normal X86 kernels, they must be at least 8 bits wide */ #if PAGE_SIZE == 4096