[PATCH] Do notify userspace when there is change in uts_kern_table.

Sasikantha babu
2012-04-04T11:34:30Z

sethostname and setdomainname notifies userspace on failure (without modifying uts_kern_table) too

Notify userspace if there is change in uts_kern_table, on failure don't notify userspace

Signed-off-by: Sasikantha babu <sasikanth.v19@gmail.com>
---
kernel/sys.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/sys.c b/kernel/sys.c
index e7006eb..6c569a8 100644
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -1295,8 +1295,8 @@ SYSCALL_DEFINE2(sethostname, char __user *, name, int, len)
memcpy(u->nodename, tmp, len);
memset(u->nodename + len, 0, sizeof(u->nodename) - len);
errno = 0;
+ uts_proc_notify(UTS_PROC_HOSTNAME);
}
- uts_proc_notify(UTS_PROC_HOSTNAME);
up_write(&uts_sem);
return errno;
}
@@ -1346,8 +1346,8 @@ SYSCALL_DEFINE2(setdomainname, char __user *, name, int, len)
memcpy(u->domainname, tmp, len);
memset(u->domainname + len, 0, sizeof(u->domainname) - len);
errno = 0;
+ uts_proc_notify(UTS_PROC_DOMAINNAME);
}
- uts_proc_notify(UTS_PROC_DOMAINNAME);
up_write(&uts_sem);
return errno;
}
--
1.7.3.4