Add missed tunables/sysctls for some new vdev variables.
While there, make few existing sysctls writeable, since there is no reason not to. MFC after: 1 week
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Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=343745
@ -165,29 +165,38 @@ static vdev_ops_t *vdev_ops_table[] = {
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/* target number of metaslabs per top-level vdev */
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/* target number of metaslabs per top-level vdev */
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int vdev_max_ms_count = 200;
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int vdev_max_ms_count = 200;
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SYSCTL_INT(_vfs_zfs_vdev, OID_AUTO, max_ms_count, CTLFLAG_RDTUN,
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SYSCTL_INT(_vfs_zfs_vdev, OID_AUTO, max_ms_count, CTLFLAG_RWTUN,
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&vdev_max_ms_count, 0,
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&vdev_max_ms_count, 0,
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"Maximum number of metaslabs per top-level vdev");
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"Target number of metaslabs per top-level vdev");
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/* minimum number of metaslabs per top-level vdev */
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/* minimum number of metaslabs per top-level vdev */
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int vdev_min_ms_count = 16;
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int vdev_min_ms_count = 16;
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SYSCTL_INT(_vfs_zfs_vdev, OID_AUTO, min_ms_count, CTLFLAG_RDTUN,
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SYSCTL_INT(_vfs_zfs_vdev, OID_AUTO, min_ms_count, CTLFLAG_RWTUN,
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&vdev_min_ms_count, 0,
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&vdev_min_ms_count, 0,
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"Minimum number of metaslabs per top-level vdev");
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"Minimum number of metaslabs per top-level vdev");
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/* practical upper limit of total metaslabs per top-level vdev */
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/* practical upper limit of total metaslabs per top-level vdev */
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int vdev_ms_count_limit = 1ULL << 17;
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int vdev_ms_count_limit = 1ULL << 17;
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SYSCTL_INT(_vfs_zfs_vdev, OID_AUTO, max_ms_count_limit, CTLFLAG_RWTUN,
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&vdev_ms_count_limit, 0,
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"Maximum number of metaslabs per top-level vdev");
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/* lower limit for metaslab size (512M) */
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/* lower limit for metaslab size (512M) */
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int vdev_default_ms_shift = 29;
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int vdev_default_ms_shift = 29;
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SYSCTL_INT(_vfs_zfs_vdev, OID_AUTO, default_ms_shift, CTLFLAG_RDTUN,
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SYSCTL_INT(_vfs_zfs_vdev, OID_AUTO, default_ms_shift, CTLFLAG_RWTUN,
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&vdev_default_ms_shift, 0,
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&vdev_default_ms_shift, 0,
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"Shift between vdev size and number of metaslabs");
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"Default shift between vdev size and number of metaslabs");
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/* upper limit for metaslab size (256G) */
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/* upper limit for metaslab size (256G) */
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int vdev_max_ms_shift = 38;
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int vdev_max_ms_shift = 38;
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SYSCTL_INT(_vfs_zfs_vdev, OID_AUTO, max_ms_shift, CTLFLAG_RWTUN,
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&vdev_max_ms_shift, 0,
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"Maximal shift between vdev size and number of metaslabs");
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boolean_t vdev_validate_skip = B_FALSE;
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boolean_t vdev_validate_skip = B_FALSE;
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SYSCTL_INT(_vfs_zfs_vdev, OID_AUTO, validate_skip, CTLFLAG_RWTUN,
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&vdev_validate_skip, 0,
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"Bypass vdev validation");
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/*
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/*
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* Since the DTL space map of a vdev is not expected to have a lot of
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* Since the DTL space map of a vdev is not expected to have a lot of
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