Ganesh Mahendran 86eda3864a android: binder: use VM_ALLOC to get vm area ... commit aac6830ec1 upstream. VM_IOREMAP is used to access hardware through a mechanism called I/O mapped memory. Android binder is a IPC machanism which will not access I/O memory. And VM_IOREMAP has alignment requiement which may not needed in binder. __get_vm_area_node() { ... if (flags & VM_IOREMAP) align = 1ul << clamp_t(int, fls_long(size), PAGE_SHIFT, IOREMAP_MAX_ORDER); ... } This patch will save some kernel vm area, especially for 32bit os. In 32bit OS, kernel vm area is only 240MB. We may got below error when launching a app: <3>[ 4482.440053] binder_alloc: binder_alloc_mmap_handler: 15728 8ce67000-8cf65000 get_vm_area failed -12 <3>[ 4483.218817] binder_alloc: binder_alloc_mmap_handler: 15745 8ce67000-8cf65000 get_vm_area failed -12 Signed-off-by: Ganesh Mahendran <opensource.ganesh@gmail.com> Acked-by: Martijn Coenen <maco@android.com> Acked-by: Todd Kjos <tkjos@google.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2018-02-03 17:39:22 +01:00
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binder.c	ANDROID: binder: remove waitqueue when thread exits.	2018-02-03 17:39:22 +01:00
binder_alloc.c	android: binder: use VM_ALLOC to get vm area	2018-02-03 17:39:22 +01:00
binder_alloc.h	android: binder: Don't get mm from task	2017-10-21 10:14:20 +02:00
binder_alloc_selftest.c	android: binder: Add global lru shrinker to binder	2017-08-28 16:47:17 +02:00
binder_trace.h	android: binder: Add shrinker tracepoints	2017-08-28 16:47:17 +02:00
Kconfig	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
Makefile	android: binder: Add allocator selftest	2017-08-28 16:47:17 +02:00