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-rw-r--r--include/os/freebsd/zfs/sys/zfs_context_os.h2
-rw-r--r--include/sys/zfs_context.h6
2 files changed, 4 insertions, 4 deletions
diff --git a/include/os/freebsd/zfs/sys/zfs_context_os.h b/include/os/freebsd/zfs/sys/zfs_context_os.h
index b46c4aa7c..0316f93b2 100644
--- a/include/os/freebsd/zfs/sys/zfs_context_os.h
+++ b/include/os/freebsd/zfs/sys/zfs_context_os.h
@@ -72,7 +72,7 @@ extern struct mtx zfs_debug_mtx;
} \
} while (0)
-#define MSEC_TO_TICK(msec) ((msec) / (MILLISEC / hz))
+#define MSEC_TO_TICK(msec) (howmany((hrtime_t)(msec) * hz, MILLISEC))
extern int hz;
extern int tick;
typedef int fstrans_cookie_t;
diff --git a/include/sys/zfs_context.h b/include/sys/zfs_context.h
index 8e16399e8..e33f52c17 100644
--- a/include/sys/zfs_context.h
+++ b/include/sys/zfs_context.h
@@ -602,9 +602,9 @@ typedef struct vsecattr {
extern void delay(clock_t ticks);
#define SEC_TO_TICK(sec) ((sec) * hz)
-#define MSEC_TO_TICK(msec) ((msec) / (MILLISEC / hz))
-#define USEC_TO_TICK(usec) ((usec) / (MICROSEC / hz))
-#define NSEC_TO_TICK(usec) ((usec) / (NANOSEC / hz))
+#define MSEC_TO_TICK(msec) (howmany((hrtime_t)(msec) * hz, MILLISEC))
+#define USEC_TO_TICK(usec) (howmany((hrtime_t)(usec) * hz, MICROSEC))
+#define NSEC_TO_TICK(nsec) (howmany((hrtime_t)(nsec) * hz, NANOSEC))
#define max_ncpus 64
#define boot_ncpus (sysconf(_SC_NPROCESSORS_ONLN))