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| author | Nicholas Piggin <[email protected]> | 2017-08-09 12:41:26 +0000 |
|---|---|---|
| committer | Michael Ellerman <[email protected]> | 2017-08-09 13:45:33 +0000 |
| commit | 96ea91e7b6ee2c406598d859e7348b4829404eea (patch) | |
| tree | 571de7dd46c078978511f27a1db07fc3ec6c9f61 /arch/powerpc/sysdev/xive/native.c | |
| parent | powerpc/watchdog: Fix marking of stuck CPUs (diff) | |
| download | kernel-96ea91e7b6ee2c406598d859e7348b4829404eea.tar.gz kernel-96ea91e7b6ee2c406598d859e7348b4829404eea.zip | |
powerpc/watchdog: add locking around init/exit functions
When CPUs start and stop the watchdog, they manipulate shared data
that is normally protected by the lock. Other CPUs can be running
concurrently at this time, so it's a good idea to use locking here
to be on the safe side.
Remove the barrier which is undocumented and didn't do anything.
Signed-off-by: Nicholas Piggin <[email protected]>
Signed-off-by: Michael Ellerman <[email protected]>
Diffstat (limited to 'arch/powerpc/sysdev/xive/native.c')
0 files changed, 0 insertions, 0 deletions