Minchan Kim 3013bf62b6 binder: reduce mmap_sem write-side lock ... binder has used write-side mmap_sem semaphore to release memory mapped at address space of the process. However, right lock to release pages is down_read, not down_write because page table lock already protects the race for parallel freeing. Please do not use mmap_sem write-side lock which is well known contented lock. Cc: Todd Kjos <tkjos@google.com> Cc: Martijn Coenen <maco@android.com> Cc: Arve Hjønnevåg <arve@android.com> Signed-off-by: Minchan Kim <minchan@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2019-02-19 14:50:11 +01:00
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Kconfig	binder: add functions to copy to/from binder buffers	2019-02-12 10:43:57 +01:00
Makefile	binder: implement binderfs	2018-12-19 09:40:13 +01:00
binder.c	binder: fix handling of misaligned binder object	2019-02-15 08:49:20 +01:00
binder_alloc.c	binder: reduce mmap_sem write-side lock	2019-02-19 14:50:11 +01:00
binder_alloc.h	binder: use userspace pointer as base of buffer space	2019-02-12 10:43:57 +01:00
binder_alloc_selftest.c	binder: fix sparse issue in binder_alloc_selftest.c	2019-02-14 08:13:56 +01:00
binder_internal.h	binderfs: remove separate device_initcall()	2019-02-01 15:50:26 +01:00
binder_trace.h	binder: use userspace pointer as base of buffer space	2019-02-12 10:43:57 +01:00
binderfs.c	binderfs: remove separate device_initcall()	2019-02-01 15:50:26 +01:00