CVS log for src/external/cddl/osnet/dist/uts/common/fs/zfs/zvol.c

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Keyword substitution: kv
Default branch: MAIN

Pull up following revision(s) (requested by gdt in ticket #1001):

	external/cddl/osnet/dist/uts/common/fs/zfs/zvol.c: revision 1.14

zvol: Implement DIOCCACHESYNC

Similarly to FreeBSD, simply call zil_commit when the DIOCCACHESYNC
ioctl is invoked on a zvol.

Tested in a xen dom0 with a domU's xbds provided by zvol on dom0.  The
error message about DIOCCACHESYNC is gone, and (mysteriously)
operations in the domU seem faster.

Thanks to Michael van Elst via port-xen@ for pointing out where/how to
do this.

zvol: Implement DIOCCACHESYNC

Similarly to FreeBSD, simply call zil_commit when the DIOCCACHESYNC
ioctl is invoked on a zvol.

Tested in a xen dom0 with a domU's xbds provided by zvol on dom0.  The
error message about DIOCCACHESYNC is gone, and (mysteriously)
operations in the domU seem faster.

Thanks to Michael van Elst via port-xen@ for pointing out where/how to
do this.

Merge changes from current as of 20200406

Fix disk geometry calculation. Add DIOCGPARTINFO to support
getdisksize() used by other drivers, filesystems and specfs.

Sync with HEAD

Implement disk_rename()/iostat_rename() to rename a disk.

Use it from zvol_rename_minor() when renaming a ZVOL.

Add missing zvol_close() to zfsdev_close().

Change zvol_size_changed() to initialize "zv->zv_volsize"
and initialize only "dg_secsize" and "dg_secperunit".
Calling disk_set_info() will initialize the remaining
parts of the geometry.

Set "doread" in zvol_strategy() to make reading from
device possible.

Reorganize/add disk_busy()/disk_unbusy() instrumentation.

Redo zvol_ioctl() to implement DIOCGWEDGEINFO and let
disk_ioctl() process the remaining ioctls.

Enable the zvol minor management to create and remove device nodes.

Update ddi environment:
- Put device major numbers into "dev_info_t".
- Fix an off-by-one in zvol_create_minor().
- When creating a node handle existing nodes
  and add owner read/write permission.
- When removing nodes remove now empty directories.

Sync with HEAD

merge a new version of the CDDL dtrace and ZFS code.
this changes the upstream vendor from OpenSolaris to FreeBSD,
and this version is based on FreeBSD svn r315983.

in addition to the 10 years of improvements from upstream,
this version also has these NetBSD-specific enhancements:
 - dtrace FBT probes can now be placed in kernel modules.
 - ZFS now supports mmap().

import new CDDL dtrace and ZFS code from FreeBSD svn r315983.

uint64_t can't be negative.

Rebase to HEAD as of a few days ago.

Rebase.

SPEC_MAXOFFSET_T doesn't exist anywhere else, so don't use it here
either.

sync with head.

for a reference, the tree before this commit was tagged
as yamt-pagecache-tag8.

this commit was splitted into small chunks to avoid
a limitation of cvs.  ("Protocol error: too many arguments")

kill sprintf

Clean up vnode lock operations pass 2:

VOP_UNLOCK(vp, flags) -> VOP_UNLOCK(vp): Remove the unneeded flags argument.

Welcome to 5.99.32.

Discussed on tech-kern.

Merge NetBSD local changes to new zfs version 22 sources.

Import new Opensolaris sources for zfs/dtrace.

Opensolaris mercurial changeset: 11751:58c0c8f4305f

Add NetBSD specific changes to OpenSolaris code. These changes were made
by Andrew Doran and me. Thank you Andrew for your great help.

Oked by core@ and ad@.

Import Opensolaris source code used with zfs port. Zfs code si from date 
200811.

Initial revision