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46b2623586
We have a tunable which permits one to disable the use of unmapped I/O for the buffer cache. Respect it in ZFS as well. This is useful for KMSAN, which cannot easily maintain shadow state for unmapped pages. No functional change intended, as unmapped I/O is permitted by default and there's no real reason to disable it in practice except for debugging. Reviewed-by: Alexander Motin <mav@FreeBSD.org> Reviewed-by: Tony Nguyen <tony.nguyen@delphix.com> Reviewed-by: Ryan Moeller <ryan@iXsystems.com> Signed-off-by: Mark Johnston <markj@FreeBSD.org> Closes #12446 |
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| .. | ||
| abd_os.c | ||
| arc_os.c | ||
| crypto_os.c | ||
| dmu_os.c | ||
| hkdf.c | ||
| kmod_core.c | ||
| spa_os.c | ||
| sysctl_os.c | ||
| vdev_file.c | ||
| vdev_geom.c | ||
| vdev_label_os.c | ||
| zfs_acl.c | ||
| zfs_ctldir.c | ||
| zfs_debug.c | ||
| zfs_dir.c | ||
| zfs_file_os.c | ||
| zfs_ioctl_compat.c | ||
| zfs_ioctl_os.c | ||
| zfs_racct.c | ||
| zfs_vfsops.c | ||
| zfs_vnops_os.c | ||
| zfs_znode.c | ||
| zio_crypt.c | ||
| zvol_os.c | ||