Re: [PATCH v2 3/5] android: binder: Move buffer out of area shared with user space

2017-08-24 Thread Dan Carpenter
On Wed, Aug 23, 2017 at 08:46:41AM -0700, Sherry Yang wrote: > Binder driver allocates buffer meta data in a region that is mapped > in user space. These meta data contain pointers in the kernel. > > This patch allocates buffer meta data on the kernel heap that is > not mapped in user space, and u

[PATCH v2 3/5] android: binder: Move buffer out of area shared with user space

2017-08-23 Thread Sherry Yang
Binder driver allocates buffer meta data in a region that is mapped in user space. These meta data contain pointers in the kernel. This patch allocates buffer meta data on the kernel heap that is not mapped in user space, and uses a pointer to refer to the data mapped. Signed-off-by: Sherry Yang