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| author | cinap_lenrek <cinap_lenrek@felloff.net> | 2017-03-29 00:30:53 +0200 |
|---|---|---|
| committer | cinap_lenrek <cinap_lenrek@felloff.net> | 2017-03-29 00:30:53 +0200 |
| commit | 0c1110ace2f247d2605599bb02f2866aee2ab1c6 (patch) | |
| tree | 9b70a5d254b5289532e9017a9a00180eaea413d1 /lib/human | |
| parent | bfae9e08be692b944ab3018d98693a15ca38a64c (diff) | |
| download | plan9front-0c1110ace2f247d2605599bb02f2866aee2ab1c6.tar.xz | |
kernel: fix twakeup()/timerdel() race condition
timerdel() did not make sure that the timer function
is not active (on another cpu). just acquiering the
Timer lock in the timer function only blocks the caller
of timerdel()/timeradd() but not the other way arround
(on a multiprocessor).
this changes the timer code to track activity of
the timer function, having timerdel() wait until
the timer has finished executing.
Diffstat (limited to 'lib/human')
0 files changed, 0 insertions, 0 deletions