diff --git a/include/os/freebsd/linux/compiler.h b/include/os/freebsd/linux/compiler.h index 3a66da195..b408b77c7 100644 --- a/include/os/freebsd/linux/compiler.h +++ b/include/os/freebsd/linux/compiler.h @@ -83,7 +83,6 @@ #define __printf(a, b) __printflike(a, b) #define barrier() __asm__ __volatile__("": : :"memory") -#define smp_rmb() rmb() #define ___PASTE(a, b) a##b #define __PASTE(a, b) ___PASTE(a, b) diff --git a/include/os/freebsd/spl/sys/atomic.h b/include/os/freebsd/spl/sys/atomic.h index 1a68bfc4d..01b13fc9a 100644 --- a/include/os/freebsd/spl/sys/atomic.h +++ b/include/os/freebsd/spl/sys/atomic.h @@ -57,7 +57,8 @@ extern uint64_t atomic_cas_64(volatile uint64_t *target, uint64_t cmp, uint64_t newval); #endif -#define membar_producer atomic_thread_fence_rel +#define membar_consumer() atomic_thread_fence_acq() +#define membar_producer() atomic_thread_fence_rel() static __inline uint32_t atomic_add_32_nv(volatile uint32_t *target, int32_t delta) diff --git a/include/os/linux/spl/sys/vmsystm.h b/include/os/linux/spl/sys/vmsystm.h index b3f121ecf..fcd61e818 100644 --- a/include/os/linux/spl/sys/vmsystm.h +++ b/include/os/linux/spl/sys/vmsystm.h @@ -44,7 +44,9 @@ #define zfs_totalhigh_pages totalhigh_pages #endif +#define membar_consumer() smp_rmb() #define membar_producer() smp_wmb() + #define physmem zfs_totalram_pages #define xcopyin(from, to, size) copy_from_user(to, from, size) diff --git a/module/zfs/zfs_ioctl.c b/module/zfs/zfs_ioctl.c index 382975208..6b9b43271 100644 --- a/module/zfs/zfs_ioctl.c +++ b/module/zfs/zfs_ioctl.c @@ -7482,7 +7482,7 @@ zfsdev_get_state(minor_t minor, enum zfsdev_state_type which) for (zs = zfsdev_state_list; zs != NULL; zs = zs->zs_next) { if (zs->zs_minor == minor) { - smp_rmb(); + membar_consumer(); switch (which) { case ZST_ONEXIT: return (zs->zs_onexit);