stripe: remove unused param, handle mem alloc failure

Change-Id: I9c27b1edab111031ca8eea9cc49480ea01e39089
BUG: 1002207
Signed-off-by: Kaleb S. KEITHLEY <kkeithle@redhat.com>
Reviewed-on: http://review.gluster.org/5716
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Anand Avati <avati@redhat.com>

libglusterfs/src/mem-pool.h

@@ -148,7 +148,7 @@ char * gf_strdup (const char *src)
 }
 
 static inline void *
-gf_memdup (const void *src, void *dst, size_t size)
+gf_memdup (const void *src, size_t size)
 {
         void *dup_mem = NULL;
 

tests/bugs/bug-1002207.t

@@ -0,0 +1,54 @@
+#!/bin/bash
+
+. $(dirname $0)/../include.rc
+. $(dirname $0)/../volume.rc
+
+cleanup;
+
+## Start and create a volume
+TEST glusterd;
+TEST pidof glusterd;
+TEST $CLI volume create $V0 stripe 2 $H0:$B0/${V0}{1,2,3,4,5,6,7,8};
+
+## Verify volume is is created
+EXPECT "$V0" volinfo_field $V0 'Volume Name';
+EXPECT 'Created' volinfo_field $V0 'Status';
+
+## Start volume and verify
+TEST $CLI volume start $V0;
+EXPECT 'Started' volinfo_field $V0 'Status';
+
+dd if=/dev/zero of=$M0/file$i.data bs=1024 count=1024 1>/dev/null 2>&1
+
+function xattr_query_check()
+{
+    local path=$1
+    local xa_name=$2
+
+    local ret=`getfattr -m . -n $xa_name $path 2>&1 | grep -o "$xa_name: No such attribute" | wc -l`
+    echo $ret
+}
+
+function set_xattr()
+{
+    local path=$1
+    local xa_name=$2
+    local xa_val=$3
+
+    setfattr -n $xa_name -v $xa_val $path
+    echo $?
+}
+
+EXPECT 0 set_xattr $M0/file$i.data "trusted.name" "testofafairlylongxattrstringthatbutnotlongenoughtofailmemoryallocation"
+
+EXPECT 0 xattr_query_check $M0/file$i.data "trusted.name"
+
+## Finish up
+TEST $CLI volume stop $V0;
+EXPECT 'Stopped' volinfo_field $V0 'Status';
+
+TEST $CLI volume delete $V0;
+TEST ! $CLI volume info $V0;
+
+cleanup;
+

xlators/cluster/stripe/src/stripe.c

@@ -5199,10 +5199,10 @@ stripe_vgetxattr_cbk (call_frame_t *frame, void *cookie,
 
                         xattr->pos = cky;
                         xattr->xattr_value = gf_memdup (xattr_val,
-                                                        xattr->xattr_value,
                                                         xattr->xattr_len);
 
-                        local->xattr_total_len += xattr->xattr_len + 1;
+                        if (xattr->xattr_value != NULL)
+                                local->xattr_total_len += xattr->xattr_len + 1;
                 }
         }
  out: