From 686cf0b0f389015801220eba102fd55e695e017d Mon Sep 17 00:00:00 2001
From: cinap_lenrek <cinap_lenrek@felloff.net>
Date: Sat, 2 Aug 2014 18:45:19 +0200
Subject: [PATCH] iostats: isolate fs from interrupt notes

interrupt notes go to the child process, not the filesystem
and filter process.
---
 sys/src/cmd/iostats.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/sys/src/cmd/iostats.c b/sys/src/cmd/iostats.c
index a2eadd3f7..022eb16c9 100644
--- a/sys/src/cmd/iostats.c
+++ b/sys/src/cmd/iostats.c
@@ -300,7 +300,7 @@ main(int argc, char **argv)
 		if(getwd(buf, sizeof(buf)) == 0)
 			sysfatal("no working directory");
 
-		rfork(RFENVG|RFNAMEG|RFNOTEG);
+		rfork(RFENVG|RFNAMEG);
 
 		if(mount(pfd[0], -1, "/", mflag, "") < 0)
 			sysfatal("mount /");
@@ -320,6 +320,8 @@ main(int argc, char **argv)
 		close(pfd[0]);
 	}
 
+	/* isolate us from interrupts */
+	rfork(RFNOTEG);
 	switch(fspid = fork()) {
 	default:
 		while(cpid != waitpid())