b247d47be1
We inherited membar_consumer() and membar_producer() from OpenSolaris, but we had replaced membar_consumer() with Linux's smp_rmb() in zfs_ioctl.c. The FreeBSD SPL consequently implemented a shim for the Linux-only smp_rmb(). We reinstate membar_consumer() in platform independent code and fix the FreeBSD SPL to implement membar_consumer() in a way analogous to Linux. Reviewed-by: Konstantin Belousov <kib@FreeBSD.org> Reviewed-by: Mateusz Guzik <mjguzik@gmail.com> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Neal Gompa <ngompa@datto.com> Reviewed-by: Alexander Motin <mav@FreeBSD.org> Signed-off-by: Richard Yao <richard.yao@alumni.stonybrook.edu> Closes #13843 |
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