diff options
| author | Todd Kjos <tkjos@android.com> | 2019-02-08 21:35:19 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-02-12 12:43:57 +0300 |
| commit | c41358a5f5217abd7c051e8d42397e5b80f3b3ed (patch) | |
| tree | 2d6de5a71627556a615ef15676a514686cc1c81b /drivers/android/binder_alloc.h | |
| parent | 880211667b203dd32724f3be224c44c0400aa0a6 (diff) | |
| download | linux-c41358a5f5217abd7c051e8d42397e5b80f3b3ed.tar.xz | |
binder: remove user_buffer_offset
Remove user_buffer_offset since there is no kernel
buffer pointer anymore.
Signed-off-by: Todd Kjos <tkjos@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/android/binder_alloc.h')
| -rw-r--r-- | drivers/android/binder_alloc.h | 23 |
1 files changed, 0 insertions, 23 deletions
diff --git a/drivers/android/binder_alloc.h b/drivers/android/binder_alloc.h index 9d682b9d6c24..1026e9fb20db 100644 --- a/drivers/android/binder_alloc.h +++ b/drivers/android/binder_alloc.h @@ -82,7 +82,6 @@ struct binder_lru_page { * (invariant after init) * @vma_vm_mm: copy of vma->vm_mm (invarient after mmap) * @buffer: base of per-proc address space mapped via mmap - * @user_buffer_offset: offset between user and kernel VAs for buffer * @buffers: list of all buffers for this proc * @free_buffers: rb tree of buffers available for allocation * sorted by size @@ -104,7 +103,6 @@ struct binder_alloc { struct vm_area_struct *vma; struct mm_struct *vma_vm_mm; void *buffer; - ptrdiff_t user_buffer_offset; struct list_head buffers; struct rb_root free_buffers; struct rb_root allocated_buffers; @@ -163,27 +161,6 @@ binder_alloc_get_free_async_space(struct binder_alloc *alloc) return free_async_space; } -/** - * binder_alloc_get_user_buffer_offset() - get offset between kernel/user addrs - * @alloc: binder_alloc for this proc - * - * Return: the offset between kernel and user-space addresses to use for - * virtual address conversion - */ -static inline ptrdiff_t -binder_alloc_get_user_buffer_offset(struct binder_alloc *alloc) -{ - /* - * user_buffer_offset is constant if vma is set and - * undefined if vma is not set. It is possible to - * get here with !alloc->vma if the target process - * is dying while a transaction is being initiated. - * Returning the old value is ok in this case and - * the transaction will fail. - */ - return alloc->user_buffer_offset; -} - unsigned long binder_alloc_copy_user_to_buffer(struct binder_alloc *alloc, struct binder_buffer *buffer, |