111 lines
3.1 KiB
Diff
111 lines
3.1 KiB
Diff
--- a/mm/shmem.c
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+++ b/mm/shmem.c
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@@ -2920,6 +2920,16 @@ EXPORT_SYMBOL_GPL(shmem_truncate_range);
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/* common code */
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+void shmem_set_file(struct vm_area_struct *vma, struct file *file)
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+{
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+ if (vma->vm_file)
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+ fput(vma->vm_file);
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+ vma->vm_file = file;
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+ vma->vm_ops = &shmem_vm_ops;
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+ vma->vm_flags |= VM_CAN_NONLINEAR;
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+}
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+EXPORT_SYMBOL_GPL(shmem_set_file);
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+
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/**
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* shmem_file_setup - get an unlinked file living in tmpfs
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* @name: name for dentry (to be seen in /proc/<pid>/maps
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@@ -2997,11 +3007,8 @@ int shmem_zero_setup(struct vm_area_stru
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if (IS_ERR(file))
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return PTR_ERR(file);
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- if (vma->vm_file)
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- fput(vma->vm_file);
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- vma->vm_file = file;
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- vma->vm_ops = &shmem_vm_ops;
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- vma->vm_flags |= VM_CAN_NONLINEAR;
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+ shmem_set_file(vma, file);
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+
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return 0;
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}
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--- a/fs/file.c
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+++ b/fs/file.c
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@@ -269,6 +269,7 @@ int expand_files(struct files_struct *fi
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/* All good, so we try */
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return expand_fdtable(files, nr);
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}
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+EXPORT_SYMBOL_GPL(expand_files);
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static int count_open_files(struct fdtable *fdt)
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{
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--- a/kernel/exit.c
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+++ b/kernel/exit.c
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@@ -513,6 +513,7 @@ struct files_struct *get_files_struct(st
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return files;
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}
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+EXPORT_SYMBOL_GPL(get_files_struct);
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void put_files_struct(struct files_struct *files)
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{
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@@ -534,6 +535,7 @@ void put_files_struct(struct files_struc
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rcu_read_unlock();
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}
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}
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+EXPORT_SYMBOL_GPL(put_files_struct);
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void reset_files_struct(struct files_struct *files)
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{
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--- a/kernel/sched/core.c
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+++ b/kernel/sched/core.c
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@@ -4106,6 +4106,7 @@ int can_nice(const struct task_struct *p
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return (nice_rlim <= task_rlimit(p, RLIMIT_NICE) ||
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capable(CAP_SYS_NICE));
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}
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+EXPORT_SYMBOL_GPL(can_nice);
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#ifdef __ARCH_WANT_SYS_NICE
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--- a/mm/memory.c
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+++ b/mm/memory.c
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@@ -1408,6 +1408,7 @@ void zap_page_range(struct vm_area_struc
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mmu_notifier_invalidate_range_end(mm, start, end);
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tlb_finish_mmu(&tlb, start, end);
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}
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+EXPORT_SYMBOL_GPL(zap_page_range);
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/**
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* zap_page_range_single - remove user pages in a given range
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--- a/mm/vmalloc.c
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+++ b/mm/vmalloc.c
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@@ -1266,6 +1266,7 @@ void unmap_kernel_range(unsigned long ad
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vunmap_page_range(addr, end);
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flush_tlb_kernel_range(addr, end);
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}
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+EXPORT_SYMBOL_GPL(unmap_kernel_range);
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int map_vm_area(struct vm_struct *area, pgprot_t prot, struct page ***pages)
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{
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@@ -1403,6 +1404,7 @@ struct vm_struct *get_vm_area(unsigned l
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return __get_vm_area_node(size, 1, flags, VMALLOC_START, VMALLOC_END,
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-1, GFP_KERNEL, __builtin_return_address(0));
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}
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+EXPORT_SYMBOL_GPL(get_vm_area);
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struct vm_struct *get_vm_area_caller(unsigned long size, unsigned long flags,
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const void *caller)
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--- a/include/linux/shmem_fs.h
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+++ b/include/linux/shmem_fs.h
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@@ -46,6 +46,8 @@ extern int shmem_init(void);
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extern int shmem_fill_super(struct super_block *sb, void *data, int silent);
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extern struct file *shmem_file_setup(const char *name,
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loff_t size, unsigned long flags);
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+
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+extern void shmem_set_file(struct vm_area_struct *vma, struct file *file);
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extern int shmem_zero_setup(struct vm_area_struct *);
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extern int shmem_lock(struct file *file, int lock, struct user_struct *user);
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extern void shmem_unlock_mapping(struct address_space *mapping);
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