diff options
Diffstat (limited to 'lib/libspl/include/sys/cmn_err.h')
| -rw-r--r-- | lib/libspl/include/sys/cmn_err.h | 36 |
1 files changed, 35 insertions, 1 deletions
diff --git a/lib/libspl/include/sys/cmn_err.h b/lib/libspl/include/sys/cmn_err.h index 63ff4eb29bc8..6a29e6cff2e1 100644 --- a/lib/libspl/include/sys/cmn_err.h +++ b/lib/libspl/include/sys/cmn_err.h @@ -7,7 +7,7 @@ * with the License. * * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE - * or http://www.opensolaris.org/os/licensing. + * or https://opensource.org/licenses/CDDL-1.0. * See the License for the specific language governing permissions * and limitations under the License. * @@ -27,4 +27,38 @@ #ifndef _LIBSPL_SYS_CMN_ERR_H #define _LIBSPL_SYS_CMN_ERR_H +#include <atomic.h> + +#define cmn_err_once(ce, ...) \ +do { \ + static volatile uint32_t printed = 0; \ + if (atomic_cas_32(&printed, 0, 1) == 0) { \ + cmn_err(ce, __VA_ARGS__); \ + } \ +} while (0) + +#define vcmn_err_once(ce, fmt, ap) \ +do { \ + static volatile uint32_t printed = 0; \ + if (atomic_cas_32(&printed, 0, 1) == 0) { \ + vcmn_err(ce, fmt, ap); \ + } \ +} while (0) + +#define zcmn_err_once(zone, ce, ...) \ +do { \ + static volatile uint32_t printed = 0; \ + if (atomic_cas_32(&printed, 0, 1) == 0) { \ + zcmn_err(zone, ce, __VA_ARGS__); \ + } \ +} while (0) + +#define vzcmn_err_once(zone, ce, fmt, ap) \ +do { \ + static volatile uint32_t printed = 0; \ + if (atomic_cas_32(&printed, 0, 1) == 0) { \ + vzcmn_err(zone, ce, fmt, ap); \ + } \ +} while (0) + #endif |