Signed-off-by: Eric W. Biederman <ebiederm@xxxxxxxxxxxx> --- include/linux/mm.h | 2 ++ mm/memory.c | 9 +++++++++ 2 files changed, 11 insertions(+), 0 deletions(-) diff --git a/include/linux/mm.h b/include/linux/mm.h index 96d8342..3fcbb8e 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -807,6 +807,8 @@ static inline void unmap_shared_mapping_range(struct address_space *mapping, extern int vmtruncate(struct inode * inode, loff_t offset); extern int vmtruncate_range(struct inode * inode, loff_t offset, loff_t end); + +extern struct vm_operations_struct revoked_vm_ops; extern void remap_file_mappings(struct file *file, struct vm_operations_struct *vm_ops); #ifdef CONFIG_MMU diff --git a/mm/memory.c b/mm/memory.c index dcd0a3c..f68c84e 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -2378,6 +2378,15 @@ out: spin_lock(&mapping->i_mmap_lock); } +static int revoked_fault(struct vm_area_struct *vma, struct vm_fault *vmf) +{ + return VM_FAULT_SIGBUS; +} + +struct vm_operations_struct revoked_vm_ops = { + .fault = revoked_fault, +}; + void remap_file_mappings(struct file *file, struct vm_operations_struct *vm_ops) { /* After file->f_ops has been changed update the vmas */ -- 1.6.1.2.350.g88cc -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html