ACPICA: Tables: Tune table mutex to be a leaf lock
authorLv Zheng <lv.zheng@intel.com>
Wed, 7 Sep 2016 06:07:24 +0000 (14:07 +0800)
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>
Sat, 10 Sep 2016 00:43:03 +0000 (02:43 +0200)
commitac0f06ebb815dabe42f2b2886ee9f879a2170ce4
tree59cd81530337d1b16b388dadf0586aeb36bd8e48
parent441ad11d078f35093ceaf510742df423c2d89a3b
ACPICA: Tables: Tune table mutex to be a leaf lock

ACPICA commit f564d57c6501b97a2871f0b4c048e79910f71783

This patch tunes MTX_TABLES into a leaf lock by always ensuring it is
released before holding other locks.

This patch also collects all table loading related functions into
acpi_tb_load_table() (invoked by load_table opcode) and
acpi_tb_install_and_load_table() (invoked by Load opcode and acpi_load_table()) so
that we can have lock tuning code collected at the boundary of these 2
functions. Lv Zheng.

Link: https://github.com/acpica/acpica/commit/f564d57c
Tested-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Tested-by: Dutch Guy <lucht_piloot@gmx.net>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
drivers/acpi/acpica/actables.h
drivers/acpi/acpica/exconfig.c
drivers/acpi/acpica/tbdata.c
drivers/acpi/acpica/tbfind.c
drivers/acpi/acpica/tbxfload.c