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| author |   anton <anton@openbsd.org> | 2020-07-31 07:11:35 +0000 |
|---|---|---|
| committer | anton <anton@openbsd.org> | 2020-07-31 07:11:35 +0000 |
| commit | a187908a04ce8f5cfcfdf32566b94a3dad43464f (patch) | |
| tree | f5d2e690a693f1085f2583f0d62fe629ffded6b6 /sys/dev/usb/uhub.c | |
| parent | Also compare username when checking for JumpHost loops. bz#3057, ok djm@ (diff) | |
| download | wireguard-openbsd-a187908a04ce8f5cfcfdf32566b94a3dad43464f.tar.xz wireguard-openbsd-a187908a04ce8f5cfcfdf32566b94a3dad43464f.zip | |
Make writes to the coverage buffer MP-safe using atomic operations.
The new routine kd_claim() returns the next available entry in the
buffer. Since the first element in the buffer is reserved to hold the
number of entries, zero can be used as a sentinel value meaning that the
buffer is full.
A mere preparation for upcoming remote coverage support in which the
buffer can be accessed by multiple threads concurrently.
ok mpi@ as part of a larger diff
Diffstat (limited to 'sys/dev/usb/uhub.c')
0 files changed, 0 insertions, 0 deletions