diff options
Diffstat (limited to 'include/sys/rwlock.h')
| -rw-r--r-- | include/sys/rwlock.h | 8 |
1 files changed, 0 insertions, 8 deletions
diff --git a/include/sys/rwlock.h b/include/sys/rwlock.h index 4197785db..ffb7b90b6 100644 --- a/include/sys/rwlock.h +++ b/include/sys/rwlock.h @@ -213,14 +213,6 @@ RW_LOCK_HELD(krwlock_t *rwp) spl_rw_lockdep_on_maybe(rwp); \ }) -/* - * This implementation of rw_tryupgrade() behaves slightly differently - * from its counterparts on other platforms. It drops the RW_READER lock - * and then acquires the RW_WRITER lock leaving a small window where no - * lock is held. On other platforms the lock is never released during - * the upgrade process. This is necessary under Linux because the kernel - * does not provide an upgrade function. - */ #define rw_tryupgrade(rwp) \ ({ \ int _rc_ = 0; \ |