commit 026549d28469f7d4ca7e5a4707f0d2dc4f2c164c
author Jeff Dike <jdike@addtoit.com> Sat Jun 25 14:55:23 2005 -0700
committer Linus Torvalds <torvalds@ppc970.osdl.org> Sat Jun 25 16:24:35 2005 -0700
tree c616d69c9f70c9fdecae42a3d97009572cc82e07
parent a6f4e3cf75538a75ee4fab620e3c8466f2154458

[PATCH] uml: always disable kmalloc during shutdown

kmalloc wasn't being disabled during panic.  This patch ensures that, no
matter how UML is exiting, it is disabled.  This matters because part of the
cleanup is to remove the umid file, which involves readdir, which calls
malloc.  This must map to libc malloc, rather than kmalloc or vmalloc.

Signed-off-by: Jeff Dike <jdike@addtoit.com>
Cc: Paolo Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

arch/um/kernel/main.c

diff --git a/arch/um/kernel/main.c b/arch/um/kernel/main.c
index e59f581..1e1a87f 100644
--- a/arch/um/kernel/main.c
+++ b/arch/um/kernel/main.c
@@ -69,7 +69,6 @@
 
 static void last_ditch_exit(int sig)
 {
-        kmalloc_ok = 0;
 	signal(SIGINT, SIG_DFL);
 	signal(SIGTERM, SIG_DFL);
 	signal(SIGHUP, SIG_DFL);

arch/um/kernel/reboot.c

diff --git a/arch/um/kernel/reboot.c b/arch/um/kernel/reboot.c
index 207f89d..fcec51d 100644
--- a/arch/um/kernel/reboot.c
+++ b/arch/um/kernel/reboot.c
@@ -38,14 +38,14 @@
 
 void uml_cleanup(void)
 {
-	kill_off_processes();
+        kmalloc_ok = 0;
 	do_uml_exitcalls();
+	kill_off_processes();
 }
 
 void machine_restart(char * __unused)
 {
-	do_uml_exitcalls();
-	kill_off_processes();
+        uml_cleanup();
 	CHOOSE_MODE(reboot_tt(), reboot_skas());
 }
 
@@ -53,8 +53,7 @@
 
 void machine_power_off(void)
 {
-	do_uml_exitcalls();
-	kill_off_processes();
+        uml_cleanup();
 	CHOOSE_MODE(halt_tt(), halt_skas());
 }