linux_media

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Files

Todd Kjos 1a7c3d9bb7 binder: create userspace-to-binder-buffer copy function

The binder driver uses a vm_area to map the per-process
binder buffer space. For 32-bit android devices, this is
now taking too much vmalloc space. This patch removes
the use of vm_area when copying the transaction data
from the sender to the buffer space. Instead of using
copy_from_user() for multi-page copies, it now uses
binder_alloc_copy_user_to_buffer() which uses kmap()
and kunmap() to map each page, and uses copy_from_user()
for copying to that page.

Signed-off-by: Todd Kjos <tkjos@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2019-02-12 10:43:57 +01:00

binder_alloc_selftest.c

android: binder: Add global lru shrinker to binder

2017-08-28 16:47:17 +02:00

binder_alloc.c

binder: create userspace-to-binder-buffer copy function

2019-02-12 10:43:57 +01:00

binder_alloc.h

binder: create userspace-to-binder-buffer copy function

2019-02-12 10:43:57 +01:00

binder_internal.h

binderfs: remove separate device_initcall()