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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);
|
