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Add missed tunables/sysctls for some new vdev variables.

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While there, make few existing sysctls writeable, since there is no reason
not to.

MFC after:	1 week
This commit is contained in:
Alexander Motin 2019-02-04 16:13:41 +00:00
parent 6174048251
commit ef08154150
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=343745
1 changed files with 14 additions and 5 deletions
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19
sys/cddl/contrib/opensolaris/uts/common/fs/zfs/vdev.c
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@ -165,29 +165,38 @@ static vdev_ops_t *vdev_ops_table[] = {
/* target number of metaslabs per top-level vdev */
int vdev_max_ms_count = 200;
SYSCTL_INT(_vfs_zfs_vdev, OID_AUTO, max_ms_count, CTLFLAG_RDTUN,
SYSCTL_INT(_vfs_zfs_vdev, OID_AUTO, max_ms_count, CTLFLAG_RWTUN,
&vdev_max_ms_count, 0,
"Maximum number of metaslabs per top-level vdev");
"Target number of metaslabs per top-level vdev");
/* minimum number of metaslabs per top-level vdev */
int vdev_min_ms_count = 16;
SYSCTL_INT(_vfs_zfs_vdev, OID_AUTO, min_ms_count, CTLFLAG_RDTUN,
SYSCTL_INT(_vfs_zfs_vdev, OID_AUTO, min_ms_count, CTLFLAG_RWTUN,
&vdev_min_ms_count, 0,
"Minimum number of metaslabs per top-level vdev");
/* practical upper limit of total metaslabs per top-level vdev */
int vdev_ms_count_limit = 1ULL << 17;
SYSCTL_INT(_vfs_zfs_vdev, OID_AUTO, max_ms_count_limit, CTLFLAG_RWTUN,
&vdev_ms_count_limit, 0,
"Maximum number of metaslabs per top-level vdev");
/* lower limit for metaslab size (512M) */
int vdev_default_ms_shift = 29;
SYSCTL_INT(_vfs_zfs_vdev, OID_AUTO, default_ms_shift, CTLFLAG_RDTUN,
SYSCTL_INT(_vfs_zfs_vdev, OID_AUTO, default_ms_shift, CTLFLAG_RWTUN,
&vdev_default_ms_shift, 0,
"Shift between vdev size and number of metaslabs");
"Default shift between vdev size and number of metaslabs");
/* upper limit for metaslab size (256G) */
int vdev_max_ms_shift = 38;
SYSCTL_INT(_vfs_zfs_vdev, OID_AUTO, max_ms_shift, CTLFLAG_RWTUN,
&vdev_max_ms_shift, 0,
"Maximal shift between vdev size and number of metaslabs");
boolean_t vdev_validate_skip = B_FALSE;
SYSCTL_INT(_vfs_zfs_vdev, OID_AUTO, validate_skip, CTLFLAG_RWTUN,
&vdev_validate_skip, 0,
"Bypass vdev validation");
/*
* Since the DTL space map of a vdev is not expected to have a lot of