ia64: dma_alloc_coherent always use GFP_DMA

[linux-2.6-omap-h63xx.git] / kernel / utsname.c

diff --git a/kernel/utsname.c b/kernel/utsname.c
index 9d8180a0f0d815dbe051dbb6a710385d22f0b342..64d398f1244436cbdc4ede981dd927e39ee708b5 100644 (file)
--- a/kernel/utsname.c
+++ b/kernel/utsname.c
@@ -14,6 +14,7 @@
 #include <linux/utsname.h>
 #include <linux/version.h>
 #include <linux/err.h>
+#include <linux/slab.h>
 
 /*
  * Clone a new ns copying an original utsname, setting refcount to 1
@@ -28,7 +29,9 @@ static struct uts_namespace *clone_uts_ns(struct uts_namespace *old_ns)
        if (!ns)
                return ERR_PTR(-ENOMEM);
 
+       down_read(&uts_sem);
        memcpy(&ns->name, &old_ns->name, sizeof(ns->name));
+       up_read(&uts_sem);
        kref_init(&ns->kref);
        return ns;
 }