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--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -2951,6 +2951,16 @@ out:
/* common code */
+void shmem_set_file(struct vm_area_struct *vma, struct file *file)
+{
+ if (vma->vm_file)
+ fput(vma->vm_file);
+ vma->vm_file = file;
+ vma->vm_ops = &shmem_vm_ops;
+ vma->vm_flags |= VM_CAN_NONLINEAR;
+}
+EXPORT_SYMBOL_GPL(shmem_set_file);
+
/**
* shmem_file_setup - get an unlinked file living in tmpfs
* @name: name for dentry (to be seen in /proc/<pid>/maps
@@ -3028,11 +3038,8 @@ int shmem_zero_setup(struct vm_area_stru
if (IS_ERR(file))
return PTR_ERR(file);
- if (vma->vm_file)
- fput(vma->vm_file);
- vma->vm_file = file;
- vma->vm_ops = &shmem_vm_ops;
- vma->vm_flags |= VM_CAN_NONLINEAR;
+ shmem_set_file(vma, file);
+
return 0;
}
--- a/fs/file.c
+++ b/fs/file.c
@@ -268,6 +268,7 @@ int expand_files(struct files_struct *fi
/* All good, so we try */
return expand_fdtable(files, nr);
}
+EXPORT_SYMBOL_GPL(expand_files);
static int count_open_files(struct fdtable *fdt)
{
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -513,6 +513,7 @@ struct files_struct *get_files_struct(st
return files;
}
+EXPORT_SYMBOL_GPL(get_files_struct);
void put_files_struct(struct files_struct *files)
{
@@ -534,6 +535,7 @@ void put_files_struct(struct files_struc
rcu_read_unlock();
}
}
+EXPORT_SYMBOL_GPL(put_files_struct);
void reset_files_struct(struct files_struct *files)
{
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -4923,6 +4923,7 @@ int can_nice(const struct task_struct *p
return (nice_rlim <= task_rlimit(p, RLIMIT_NICE) ||
capable(CAP_SYS_NICE));
}
+EXPORT_SYMBOL_GPL(can_nice);
#ifdef __ARCH_WANT_SYS_NICE
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -1396,6 +1396,7 @@ unsigned long zap_page_range(struct vm_a
tlb_finish_mmu(&tlb, address, end);
return end;
}
+EXPORT_SYMBOL_GPL(zap_page_range);
/**
* zap_vma_ptes - remove ptes mapping the vma
@@ -3071,6 +3072,7 @@ static inline int check_stack_guard_page
}
return 0;
}
+EXPORT_SYMBOL_GPL(vmtruncate_range);
/*
* We enter with non-exclusive mmap_sem (to exclude vma changes,
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -1246,6 +1246,7 @@ void unmap_kernel_range(unsigned long ad
vunmap_page_range(addr, end);
flush_tlb_kernel_range(addr, end);
}
+EXPORT_SYMBOL_GPL(unmap_kernel_range);
int map_vm_area(struct vm_struct *area, pgprot_t prot, struct page ***pages)
{
@@ -1383,6 +1384,7 @@ struct vm_struct *get_vm_area(unsigned l
return __get_vm_area_node(size, 1, flags, VMALLOC_START, VMALLOC_END,
-1, GFP_KERNEL, __builtin_return_address(0));
}
+EXPORT_SYMBOL_GPL(get_vm_area);
struct vm_struct *get_vm_area_caller(unsigned long size, unsigned long flags,
void *caller)
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -870,6 +870,7 @@ extern bool skip_free_areas_node(unsigne
int shmem_lock(struct file *file, int lock, struct user_struct *user);
struct file *shmem_file_setup(const char *name, loff_t size, unsigned long flags);
+void shmem_set_file(struct vm_area_struct *vma, struct file *file);
int shmem_zero_setup(struct vm_area_struct *);
extern int can_do_mlock(void);
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