From 8be1093039aa9942ec456dff0255c2b0c41f2cce Mon Sep 17 00:00:00 2001
From: acoul <acoul@3c298f89-4303-0410-b956-a3cf2f4a3e73>
Date: Wed, 3 Nov 2010 16:13:33 +0000
Subject: target/linux: add preliminary 2.6.37 kernel support

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@23828 3c298f89-4303-0410-b956-a3cf2f4a3e73
---
 .../generic/patches-2.6.37/980-vm_exports.patch    | 132 +++++++++++++++++++++
 1 file changed, 132 insertions(+)
 create mode 100644 target/linux/generic/patches-2.6.37/980-vm_exports.patch

(limited to 'target/linux/generic/patches-2.6.37/980-vm_exports.patch')

diff --git a/target/linux/generic/patches-2.6.37/980-vm_exports.patch b/target/linux/generic/patches-2.6.37/980-vm_exports.patch
new file mode 100644
index 000000000..09ccb397f
--- /dev/null
+++ b/target/linux/generic/patches-2.6.37/980-vm_exports.patch
@@ -0,0 +1,132 @@
+--- a/mm/shmem.c
++++ b/mm/shmem.c
+@@ -30,6 +30,7 @@
+ #include <linux/module.h>
+ #include <linux/percpu_counter.h>
+ #include <linux/swap.h>
++#include <linux/ima.h>
+ 
+ static struct vfsmount *shm_mnt;
+ 
+@@ -2703,6 +2704,16 @@ out:
+ 
+ /* common code */
+ 
++void shmem_set_file(struct vm_area_struct *vma, struct file *file)
++{
++	ima_counts_get(file);
++	if (vma->vm_file)
++		fput(vma->vm_file);
++	vma->vm_file = file;
++	vma->vm_ops = &shmem_vm_ops;
++}
++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
+@@ -2780,9 +2791,6 @@ 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;
++	shmem_set_file(vma, file);
+ 	return 0;
+ }
+--- a/fs/file.c
++++ b/fs/file.c
+@@ -264,6 +264,7 @@ 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
+@@ -505,6 +505,7 @@ struct files_struct *get_files_struct(st
+ 
+ 	return files;
+ }
++EXPORT_SYMBOL_GPL(get_files_struct);
+ 
+ void put_files_struct(struct files_struct *files)
+ {
+@@ -526,6 +527,7 @@ 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/fork.c
++++ b/kernel/fork.c
+@@ -191,6 +191,7 @@ void __put_task_struct(struct task_struc
+ 	if (!profile_handoff_task(tsk))
+ 		free_task(tsk);
+ }
++EXPORT_SYMBOL_GPL(__put_task_struct);
+ 
+ /*
+  * macro override instead of weak attribute alias, to workaround
+--- a/kernel/sched.c
++++ b/kernel/sched.c
+@@ -4573,6 +4573,7 @@ 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
+@@ -1201,6 +1201,7 @@ 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
+@@ -2614,6 +2615,7 @@ int vmtruncate_range(struct inode *inode
+ 
+ 	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
+@@ -1186,6 +1186,7 @@ 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)
+ {
+@@ -1301,6 +1302,7 @@ 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
+@@ -746,6 +746,7 @@ extern void show_free_areas(void);
+ 
+ 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 *);
+ 
+ #ifndef CONFIG_MMU
-- 
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