2007-02-07 19:54:59

by Jeff Dike

[permalink] [raw]
Subject: [PATCH 2/7] UML - SIGIO locking comment

Comment the use of a mysterious-looking lock.

Signed-off-by: Jeff Dike <[email protected]>
--
arch/um/kernel/sigio.c | 1 +
1 file changed, 1 insertion(+)

Index: linux-2.6.18-mm/arch/um/kernel/sigio.c
===================================================================
--- linux-2.6.18-mm.orig/arch/um/kernel/sigio.c 2007-01-10 15:12:51.000000000 -0500
+++ linux-2.6.18-mm/arch/um/kernel/sigio.c 2007-01-10 15:44:08.000000000 -0500
@@ -42,6 +42,7 @@ int write_sigio_irq(int fd)
return(0);
}

+/* These are called from os-Linux/sigio.c to protect its pollfds arrays. */
static DEFINE_SPINLOCK(sigio_spinlock);

void sigio_lock(void)