From 949b46d13d1e21b596f505a2e69956565e365d77 Mon Sep 17 00:00:00 2001
From: Imre Kaloz <kaloz@openwrt.org>
Date: Tue, 23 Oct 2012 12:21:34 +0000
Subject: linux 3.6 support (work in progress)

SVN-Revision: 33897
---
 .../linux/generic/patches-3.6/950-vm_exports.patch | 117 +++++++++++++++++++++
 1 file changed, 117 insertions(+)
 create mode 100644 target/linux/generic/patches-3.6/950-vm_exports.patch

(limited to 'target/linux/generic/patches-3.6/950-vm_exports.patch')

diff --git a/target/linux/generic/patches-3.6/950-vm_exports.patch b/target/linux/generic/patches-3.6/950-vm_exports.patch
new file mode 100644
index 0000000..1cd970c
--- /dev/null
+++ b/target/linux/generic/patches-3.6/950-vm_exports.patch
@@ -0,0 +1,117 @@
+--- a/mm/shmem.c
++++ b/mm/shmem.c
+@@ -2490,6 +2490,16 @@ EXPORT_SYMBOL_GPL(shmem_truncate_range);
+ 
+ /* 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
+@@ -2567,11 +2577,8 @@ 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
+@@ -500,6 +500,7 @@ struct files_struct *get_files_struct(st
+ 
+ 	return files;
+ }
++EXPORT_SYMBOL_GPL(get_files_struct);
+ 
+ void put_files_struct(struct files_struct *files)
+ {
+@@ -521,6 +522,7 @@ 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/core.c
++++ b/kernel/sched/core.c
+@@ -3854,6 +3854,7 @@ 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
+@@ -1412,6 +1412,7 @@ 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
+@@ -3087,6 +3088,7 @@ 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
+@@ -1257,6 +1257,7 @@ 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)
+ {
+@@ -1394,6 +1395,7 @@ 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
+@@ -872,6 +872,7 @@ 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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