[PATCH] uml: Fix SIGWINCH relaying
This makes SIGWINCH work again, and fixes a couple of SIGWINCH-associated
crashes. First, the sigio thread disables SIGWINCH because all hell breaks
loose if it ever gets one and tries to call the signal handling code. Second,
there was a problem with deferencing tty structs after they were freed. The
SIGWINCH support for a tty wasn't being turned off or freed after the tty went
away.
Signed-off-by: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/arch/um/kernel/skas/process.c b/arch/um/kernel/skas/process.c
index c0b3051..4dc13bc 100644
--- a/arch/um/kernel/skas/process.c
+++ b/arch/um/kernel/skas/process.c
@@ -28,10 +28,11 @@
#include "chan_user.h"
#include "signal_user.h"
#include "registers.h"
+#include "process.h"
int is_skas_winch(int pid, int fd, void *data)
{
- if(pid != os_getpid())
+ if(pid != os_getpgrp())
return(0);
register_winch_irq(-1, fd, -1, data);
@@ -259,6 +260,10 @@
sigjmp_buf **switch_buf = switch_buf_ptr;
int n;
+ set_handler(SIGWINCH, (__sighandler_t) sig_handler,
+ SA_ONSTACK | SA_RESTART, SIGUSR1, SIGIO, SIGALRM,
+ SIGVTALRM, -1);
+
*fork_buf_ptr = &initial_jmpbuf;
n = sigsetjmp(initial_jmpbuf, 1);
if(n == 0)