goto out_up;
}
+ /*
+ * Put vDSO base into mm struct. We need to do this before calling
+ * install_special_mapping or the perf counter mmap tracking code
+ * will fail to recognise it as a vDSO (since arch_vma_name fails).
+ */
+ current->mm->context.vdso_base = vdso_base;
+
/*
* our vma flags don't have VM_WRITE so by default, the process
* isn't allowed to write those pages.
VM_ALWAYSDUMP,
vdso_pagelist);
if (rc)
- goto out_up;
-
- /* Put vDSO base into mm struct */
- current->mm->context.vdso_base = vdso_base;
-
- up_write(&mm->mmap_sem);
- return 0;
-
+ current->mm->context.vdso_base = 0;
out_up:
up_write(&mm->mmap_sem);
return rc;