add some extra kernel exports to be used by ashmem and binder later
SVN-Revision: 14033v19.07.3_mercusys_ac12_duma
Felix Fietkau
16 years ago
parent
0faef985b7
commit
9f05f0575c
@ -0,0 +1,114 @@
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--- a/mm/shmem.c
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+++ b/mm/shmem.c
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@@ -2582,6 +2582,16 @@ put_memory:
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shmem_unacct_size(flags, size);
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return ERR_PTR(error);
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}
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+EXPORT_SYMBOL_GPL(shmem_file_setup);
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+
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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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+}
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+EXPORT_SYMBOL_GPL(shmem_set_file);
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/**
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* shmem_zero_setup - setup a shared anonymous mapping
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@@ -2596,9 +2606,6 @@ 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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+ shmem_set_file(vma, vma->vm_file);
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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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@@ -270,6 +270,7 @@ 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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@@ -504,6 +504,7 @@ 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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@@ -523,6 +524,7 @@ void put_files_struct(struct files_struc
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free_fdtable(fdt);
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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/fork.c
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+++ b/kernel/fork.c
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@@ -153,6 +153,7 @@ void __put_task_struct(struct task_struc
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if (!profile_handoff_task(tsk))
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free_task(tsk);
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}
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+EXPORT_SYMBOL_GPL(__put_task_struct);
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/*
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* macro override instead of weak attribute alias, to workaround
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--- a/kernel/sched.c
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+++ b/kernel/sched.c
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@@ -4932,6 +4932,7 @@ int can_nice(const struct task_struct *p
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return (nice_rlim <= p->signal->rlim[RLIMIT_NICE].rlim_cur ||
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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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@@ -993,6 +993,7 @@ unsigned long zap_page_range(struct vm_a
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tlb_finish_mmu(tlb, address, end);
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return end;
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}
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+EXPORT_SYMBOL_GPL(zap_page_range);
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/**
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* zap_vma_ptes - remove ptes mapping the vma
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@@ -2241,6 +2242,7 @@ int vmtruncate_range(struct inode *inode
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return 0;
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}
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+EXPORT_SYMBOL_GPL(vmtruncate_range);
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/*
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* We enter with non-exclusive mmap_sem (to exclude vma changes,
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--- a/mm/vmalloc.c
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+++ b/mm/vmalloc.c
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@@ -88,6 +88,7 @@ void unmap_kernel_range(unsigned long ad
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} while (pgd++, addr = next, addr != end);
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flush_tlb_kernel_range(start, end);
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}
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+EXPORT_SYMBOL_GPL(unmap_kernel_range);
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static void unmap_vm_area(struct vm_struct *area)
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{
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@@ -306,6 +307,7 @@ struct vm_struct *get_vm_area(unsigned l
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return __get_vm_area_node(size, 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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void *caller)
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@ -0,0 +1,113 @@
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--- a/mm/shmem.c
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+++ b/mm/shmem.c
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@@ -2480,6 +2480,15 @@ static int shmem_get_sb(struct file_syst
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return get_sb_nodev(fs_type, flags, data, shmem_fill_super, mnt);
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}
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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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+}
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+EXPORT_SYMBOL_GPL(shmem_set_file);
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+
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static struct file_system_type tmpfs_fs_type = {
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.owner = THIS_MODULE,
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.name = "tmpfs",
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@@ -2600,9 +2609,6 @@ 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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+ shmem_set_file(vma, vma->vm_file);
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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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@@ -270,6 +270,7 @@ 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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@@ -509,6 +509,7 @@ 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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@@ -528,6 +529,7 @@ void put_files_struct(struct files_struc
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free_fdtable(fdt);
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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/fork.c
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+++ b/kernel/fork.c
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@@ -155,6 +155,7 @@ void __put_task_struct(struct task_struc
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if (!profile_handoff_task(tsk))
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free_task(tsk);
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}
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+EXPORT_SYMBOL_GPL(__put_task_struct);
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/*
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* macro override instead of weak attribute alias, to workaround
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--- a/kernel/sched.c
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+++ b/kernel/sched.c
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@@ -5015,6 +5015,7 @@ int can_nice(const struct task_struct *p
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return (nice_rlim <= p->signal->rlim[RLIMIT_NICE].rlim_cur ||
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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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@@ -993,6 +993,7 @@ unsigned long zap_page_range(struct vm_a
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tlb_finish_mmu(tlb, address, end);
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return end;
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}
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+EXPORT_SYMBOL_GPL(zap_page_range);
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/**
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* zap_vma_ptes - remove ptes mapping the vma
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@@ -2271,6 +2272,7 @@ int vmtruncate_range(struct inode *inode
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return 0;
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}
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+EXPORT_SYMBOL_GPL(vmtruncate_range);
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/*
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* We enter with non-exclusive mmap_sem (to exclude vma changes,
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--- a/mm/vmalloc.c
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+++ b/mm/vmalloc.c
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@@ -980,6 +980,7 @@ 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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@@ -1085,6 +1086,7 @@ struct vm_struct *get_vm_area(unsigned l
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return __get_vm_area_node(size, 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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void *caller)
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