Commit Graph

10 Commits

Author SHA1 Message Date
Marcel Moolenaar
3f71c319f4 Implement the resize verb and add support for resizing partitions
for all schemes but EBR. Quality work by Andrey!

Submitted by:	"Andrey V. Elsukov" <bu7cher@yandex.ru>
2010-04-23 03:11:39 +00:00
Marcel Moolenaar
f43b57e32a Revert revisions 188839 and 188868. Use of the ioctl in geom_dev.c
is invalid because the ioctl happens without prior open. The ioctl
got introduced to provide backward compatibility for extended
partitions, but it ended up not being used because it didn't work
as expected. Since there are no consumers of the ioctl and the
implementation is broken, the best fix is to remove the code
entirely.

Spotted by:	phk
Approved by:	re (kensmith)
2009-07-08 05:56:14 +00:00
Marcel Moolenaar
6ad9a99f21 Add a compat option to the EBR scheme that controls the
naming of the partitions (GEOM_PART_EBR_COMPAT).  When
compatibility is enabled, changes to the partitioning are
disallowed.

Remove the device name aliasing added previously to provide
backward compatibility, but which in practice doesn't give
us anything.

Enable compatibility on amd64 and i386.
2009-04-15 22:38:22 +00:00
Marcel Moolenaar
59c532c500 Provide compatibility symlink for logical partitions:
1.  Extend geom_dev by having it create the symlink (i.e. call
    make_dev_alias) based on the DIOCGPROVIDERALIAS ioctl.
    In this way the functionaility is generic and thus usable
    by any geom/provider.
2.  Have g_part handle said ioctl through the devalias method,
    so that it's under control of the scheme itself. By design
    the alias will not be created for newly added partitions.
2009-02-20 04:48:40 +00:00
Marcel Moolenaar
09a278e14d Add a default implementation for pre-check. It should
always succeed if not implemented.

Pointy hat: marcel
2009-02-17 18:24:58 +00:00
Marcel Moolenaar
7ca4fa83ec Add method precheck to the g_part interface. The precheck
method allows schemes to reject the ctl request, pre-check
the parameters and/or modify/set parameters. There are 2
use cases that triggered the addition:
1.  When implementing a R/O scheme, deletes will still
    happen to the in-memory representation. The scheme is
    not involved in that operation. The pre-check method
    can be used to fail the delete up-front. Without this
    the write to disk will typically fail, but at that
    time the delete already happened.
2.  The EBR scheme uses a linked list to record slices.
    There's no index. The EBR scheme defines the index
    as a function of the start LBA of the partition. The
    add verb picks an index for the range and then invokes
    the add method of the scheme to fill in the blanks. It
    is too late for the add method to change the index.
    The pre-check is used to set the index up-front. This
    also (silently) overrides/nullifies any (pointless)
    user-specified index value.
2009-02-15 22:18:16 +00:00
Marcel Moolenaar
f6aa3fccce Add the set and unset verbs used to set and clear attributes for
partition entries. Implement the setunset method for the MBR
scheme to control the active flag.
2008-06-18 01:13:34 +00:00
Marcel Moolenaar
4d32fcb42b Add the bootcode verb for installing boot code. Boot code
is supported for the MBR, GPT and PC98 schemes, where GPT
installs boot code into the PMBR.
2008-04-13 19:54:54 +00:00
Craig Rodrigues
898b5f434b #include <sys/systm.h> before <sys/geom.h> to get KASSERT(), and fix LINT build. 2007-02-08 04:02:56 +00:00
Marcel Moolenaar
1d3aed33e8 Evolve the ctlreq interface added to geom_gpt into a generic
partitioning class that supports multiple schemes. Current
schemes supported are APM (Apple Partition Map) and GPT.
Change all GEOM_APPLE anf GEOM_GPT options into GEOM_PART_APM
and GEOM_PART_GPT (resp).

The ctlreq interface supports verbs to create and destroy
partitioning schemes on a disk; to add, delete and modify
partitions; and to commit or undo changes made.
2007-02-07 18:55:31 +00:00