diff options
| author | mrg <mrg@NetBSD.org> | 2017-12-16 03:13:29 +0000 |
|---|---|---|
| committer | mrg <mrg@NetBSD.org> | 2017-12-16 03:13:29 +0000 |
| commit | acf2eea863d1c7cb98b5051d39e5e4badd9665a6 (patch) | |
| tree | 7de76546e1e54e95ae823d74e6f5e48df5bc4673 /sys/dev/microcode | |
| parent | c94cf33623fd55bef352dd70eccb4944f8021404 (diff) | |
hopefully workaround the irregularly "fork fails in init" problem.
if a pool is growing, and the grower is PR_NOWAIT, mark this.
if another caller wants to grow the pool and is also PR_NOWAIT,
busy-wait for the original caller, which should either succeed
or hard-fail fairly quickly.
implement the busy-wait by unlocking and relocking this pools
mutex and returning ERESTART. other methods (such as having
the caller do this) were significantly more code and this hack
is fairly localised.
ok chs@ riastradh@
Diffstat (limited to 'sys/dev/microcode')
0 files changed, 0 insertions, 0 deletions
