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author | Pingfan Liu <kernelfans@gmail.com> | 2018-07-31 10:51:32 +0200 |
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committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2018-08-06 12:35:20 +0200 |
commit | 55f2503c3b69328735e88031ff8d6ba291bd952b (patch) | |
tree | c89f476f4866d1e3ee11aa8b8601c68a23e3b025 /net/compat.c | |
parent | PM / hibernate: Mark expected switch fall-through (diff) | |
download | linux-55f2503c3b69328735e88031ff8d6ba291bd952b.tar.xz linux-55f2503c3b69328735e88031ff8d6ba291bd952b.zip |
PM / reboot: Eliminate race between reboot and suspend
At present, "systemctl suspend" and "shutdown" can run in parrallel. A
system can suspend after devices_shutdown(), and resume. Then the shutdown
task goes on to power off. This causes many devices are not really shut
off. Hence replacing reboot_mutex with system_transition_mutex (renamed
from pm_mutex) to achieve the exclusion. The renaming of pm_mutex as
system_transition_mutex can be better to reflect the purpose of the mutex.
Signed-off-by: Pingfan Liu <kernelfans@gmail.com>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'net/compat.c')
0 files changed, 0 insertions, 0 deletions