Commit Graph

163 Commits

Author SHA1 Message Date
kevans
dd6f2f2c8d Annotate geom modules with MODULE_VERSION
GEOM ELI may double ask the password during boot. Once at loader time, and
once at init time.

This happens due a module loading bug. By default GEOM ELI caches the
password in the kernel, but without the MODULE_VERSION annotation, the
kernel loads over the kernel module, even if the GEOM ELI was compiled into
the kernel. In this case, the newly loaded module
purges/invalidates/overwrites the GEOM ELI's password cache, which causes
the double asking.

MFC Note: There's a pc98 component to the original submission that is
omitted here due to pc98 removal in head. This part will need to be revived
upon MFC.

Reviewed by:	imp
Submitted by:	op
Obtained from:	opBSD
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D14992
2018-04-10 19:18:16 +00:00
pfg
6a3873d1b1 geom_ccd.c: Fix the licenses properly
The license merging in r109471 didn't take into account that licensing
could change. Just removing the 3rd clause obviates the copyright
assignment to the NetBSD Foundation.

We do have plenty of files that have two or more licensing as in this
case, so fix this properly by splitting back the licenses as they are
upstream.

Obtained from:	NetBSD
2017-12-30 02:07:18 +00:00
pfg
215db6c13d geom_ccd.c: Update the license with changes from upstream.
Part of this file originated in NetBSD, with the original file
carrying two versions of 4-clause BSD licenses. r109471 attempted to
simplify the situation by putting both licenses together.

Meanwhile, NetBSD dropped Clauses 3 and 4 from their own license, and
eventually NetBSD got permission from the University of Utah to drop the
3rd clause.

Keep the license "simple" by dropping the third clause since both TNF,
Utah/Berkeley and phk agree in principle that it can be dropped.

Obtained from:	NetBSD (ccd.c CVS 1.128, 1.138)
2017-12-30 01:37:08 +00:00
pfg
a82e3a8b24 sys/geom: adoption of SPDX licensing ID tags.
Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error
prone - task.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.
2017-11-27 15:17:37 +00:00
pfg
fafa173c28 sys/geom: spelling fixes in comments.
No functional change.
2016-04-29 20:56:58 +00:00
ae
972deb0b1f Include sys/sbuf.h directly.
Reviewed by:	pjd
2011-07-11 05:22:31 +00:00
lulf
12359ec70e - Fix a potential NULL pointer reference. Note that this should not happen in
practice, but it is a good programming practice and allows the kernel to not
  depend on userland correctness.
- While there, make sizeof usage match the rest of the code.

Found with:	Coverity Prevent(tm)
CID:		660, 662
2008-11-25 20:28:33 +00:00
des
c2c1c946ae Add sbuf_new_auto as a shortcut for the very common case of creating a
completely dynamic sbuf.

Obtained from:	Varnish
MFC after:	2 weeks
2008-08-09 11:14:05 +00:00
cracauer
452517900b Make CCD be able to read and write Linux software raids.
Supported for raid-0 with <n> disks, raid-1 with 2 disks.

Manpages have examples, warnings etc.

Test scripts on
http://www.cons.org/cracauer/ccdconfig-linux/
Reviewed by:	alfred
2006-04-13 20:35:31 +00:00
marcel
a5bd277da0 Change gctl_set_param() to return an error instead of setting an
error on the request.  Add a wrapper, gctl_set_param_err(), that
sets the error on the request from the error returned by
gctl_set_param() and update current callers of gctl_set_param()
to call gctl_set_param_err() instead.
This makes gctl_set_param() much more usable in situations where
the caller knows better what to do with certain (apparent) error
conditions and setting an error on the request is not one of the
things that need to be done.
2006-04-07 16:19:48 +00:00
imp
872b48591b /* -> /*- for copyright notices, minor format tweaks as necessary 2005-01-06 18:27:30 +00:00
phk
d8d2b01380 Tag all geom classes in the tree with a version number. 2004-08-08 07:57:53 +00:00
phk
8a11f1b4a6 Use default method initialization on geoms. 2004-08-08 06:49:07 +00:00
phk
124977fbb6 Remove the absolute count g_access_abs() function since experience has
shown that it is not useful.

Rename the relative count g_access_rel() function to g_access(), only
the name has changed.

Change all g_access_rel() calls in our CVS tree to call g_access() instead.

Add an #ifndef BURN_BRIDGES #define of g_access_rel() for source
code compatibility.
2004-02-12 22:42:11 +00:00
phk
853b4bc47c don't call sbuf_clear() right after sbuf_new(), it is not necessary. 2004-02-10 10:54:19 +00:00
phk
01e9462fd6 Make sure to return errors if we have any.
Submitted by:    Pawel Jakub Dawidek <nick@garage.freebsd.pl>
2003-11-12 09:46:54 +00:00
phk
a42d01d036 Close the right consumers if we run into trouble opening them all.
Submitted by:	Pawel Jakub Dawidek <nick@garage.freebsd.pl>
2003-10-24 18:47:31 +00:00
ps
3f7f2a4cfc Change the the size fields to daddr_t to support greater than 2TB ccd volumes.
Reviewed by:	phk
2003-08-22 11:21:06 +00:00
phk
57ee24a70a Make CCD unloadable. 2003-08-22 11:04:47 +00:00
phk
0955331370 Block all GETATTR calls hitting the CCD, we wouldn't know which child
device should handle them.

This prevents for instance GEOM::ioctl requests from reaching a
lower BSDlabel node, which ps@ found would confuse newfs(8).
2003-08-22 10:28:19 +00:00
phk
d2368e58de Check for null softc pointers, these happens when a ccd is withering.
Found by:	 David Schultz <dschultz@OCF.Berkeley.EDU>
2003-08-22 10:22:46 +00:00
phk
f1458a1700 Fix a memory leak in CCD's mirror code. 2003-07-29 20:04:06 +00:00
obrien
40ee2bd5c8 Use __FBSDID().
Approved by:	phk
2003-06-11 06:49:16 +00:00
phk
96300d6f8f Fix error handling for ENOMEM style issues. 2003-06-09 19:12:19 +00:00
phk
727d06d199 Polishing and nitpicking. 2003-06-07 11:06:44 +00:00
phk
9e9ac1e55e Make this a true GEOM class:
Attach to the component devices using GEOM semantics.
        Create a GEOM provider instead of using disk_create()
        Use the GEOM OAM api for configuration.

I saw approx ~1% speedup in througput and ~7% in latency in a
simple minded test of a two-disk striped device.

This file was repo-copied from src/sys/dev/ccd/ccd.c.

This is not yet linked into the build.
2003-06-04 18:16:09 +00:00
phk
52a564bd3f Further devilification of CCD:
Change the list interface to simplify things.
Remove old list ioctls which bogusly exported the softc to userland.
Move the softc and associated structures from the public header to
the source file.
2003-06-02 21:29:04 +00:00
phk
44a9a5c714 Begin deevilification of CCD:
Make CCD a GEOM class.

For now only use this for implementing a OAM config method which
can return a list of configured CCD devices in the format which
"ccdconfig -g[v]" would normally output.
2003-06-02 20:50:03 +00:00
phk
b11f7951ec Remove unused variable.
Found by:       FlexeLint
2003-05-31 18:55:18 +00:00
phk
c10cd4d964 More correct patch: Only call biofinish if we have not already sent
any children down the mesh.
2003-04-14 08:49:54 +00:00
phk
e27444e997 Call biofinish() also when we get a malloc() failure. 2003-04-14 08:08:17 +00:00
phk
c235e25328 Use bioq_flush() to drain a bio queue with a specific error code.
Retain the mistake of not updating the devstat API for now.

Spell bioq_disksort() consistently with the remaining bioq_*().

#include <geom/geom_disk.h> where this is more appropriate.
2003-04-01 15:06:26 +00:00
phk
e059b79437 Including <sys/stdint.h> is (almost?) universally only to be able to use
%j in printfs, so put a newsted include in <sys/systm.h> where the printf
prototype lives and save everybody else the trouble.
2003-03-18 08:45:25 +00:00
phk
e01fc931cf Centralize the devstat handling for all GEOM disk device drivers
in geom_disk.c.

As a side effect this makes a lot of #include <sys/devicestat.h>
lines not needed and some biofinish() calls can be reduced to
biodone() again.
2003-03-08 08:01:31 +00:00
phk
21654c3b17 Initialize the second buffer for mirroring to point to itself and not its
partner.
2003-03-04 10:15:19 +00:00
phk
0ae911eb0e Gigacommit to improve device-driver source compatibility between
branches:

Initialize struct cdevsw using C99 sparse initializtion and remove
all initializations to default values.

This patch is automatically generated and has been tested by compiling
LINT with all the fields in struct cdevsw in reverse order on alpha,
sparc64 and i386.

Approved by:    re(scottl)
2003-03-03 12:15:54 +00:00
phk
8f9640b59b NO_GEOM cleanup: Convert CCD(4) to be use "struct disk*" instead of "dev_t"
as "this" handle.
2003-02-21 23:25:43 +00:00
phk
9aa946589d NO_GEOM cleanup:
Change the argument to disk_destroy() to be the same struct disk * as
disk_create() takes.

This enables drivers to ignore the (now) bogus dev_t which disk_create()
returns.
2003-02-21 15:13:26 +00:00
imp
cf874b345d Back out M_* changes, per decision of the TRB.
Approved by: trb
2003-02-19 05:47:46 +00:00
phk
b098c0b196 Announce our ability to do MAXPHYS transfers. 2003-02-11 21:29:53 +00:00
phk
f9d517f0ed Eliminate the sc_openmask, ccdopen() and ccdclose() functions, we
can use the flag maintained by geom_disk.c

Having only a strategy method to intialize, don't waste space using
a cdevsw structure to do so.
2003-02-01 11:17:22 +00:00
alfred
bf8e8a6e8f Remove M_TRYWAIT/M_WAITOK/M_WAIT. Callers should use 0.
Merge M_NOWAIT/M_DONTWAIT into a single flag M_NOWAIT.
2003-01-21 08:56:16 +00:00
phk
b9e99ecd32 Finally give CCD the disk mini-layer treatment:
CAUTION:

        Previously CCD would be different from all other disks in
        the system in that there were no "ccd0" device, only a
        "ccd0c" device.

        This is no longer so after this commit.  If you access a
        ccd device through the "/dev/ccd0c" device _and_ have not
        actually put a BSD disklabel on the device, you will have
        to use the name "/dev/ccd0".  If your CCD device contains
        a BSD disklabel there should be no difference.

        You need to recompile ccdconfig(8) using the changed
        src/sys/sys/ccdvar.h for the -g "show me" option to work.

        I have run the regression test I created before I started
        overhauling CCD and it flags no problems, but this code
        is mildly evil, so take care.  If you would cry if you lost
        what's on CCD, make a back before you upgrade.

Create separate cdevsw for the /dev/ccd.ctl device.

Remove the cloning function, the disk-minilayer will do all naming
for us.

Remove the ccdunit and ccdpart functions and carry the softc pointer
in the relevant dev_t's and structures.

Release all memory when a CCD device is unconfigured, previously
the softc would linger behind.

Remove all traces of BSD disklabel fiddling code.

Remove ccdpsize, the disk mini-layer does this for us.

Don't allocate memory with M_WAITOK in ccdstrategy().

Remove boundary checks which the disk mini-layer does for us.

Don't allocate space for more than 2 ccdbuf, RAID was never implemented.

NB: I have not tried to address any of the preexisting ailments of CCD.
2003-01-19 15:00:58 +00:00
phk
10e76c3f14 Unifdef -UDEBUG on the CCD driver. The debugging is mostly useless
and can be added back selectively, should anybody start to interest
themselves for the internal workings of ccd.

This commit will make the diffs for the following commits much more
readable.
2003-01-19 14:35:38 +00:00
phk
1a85c3746b Inline now trivial functions getccdbuf() and putccdbuf().
Fix another trivial memory-leak.
2003-01-18 12:23:49 +00:00
phk
5bbadf161c Fix minor memory-leak. 2003-01-18 11:33:06 +00:00
phk
d5b262df48 Use the M_CCD malloc bucket instead of M_DEVBUF.
Don't keep a private freelist of a low number of trivially small structures.
2003-01-18 11:04:41 +00:00
phk
577399eeab Inline trivial function ccdintr() into its one caller ccdiodone().
Only call ccdfind() once in ccdiodone() and cache the result.
2003-01-18 10:44:17 +00:00
phk
961794d713 Sanitize the copyright section a bit: We do not need two copies of the
four-clause BSD license in the file, one will do.
2003-01-18 10:08:27 +00:00
phk
62c9659f0c Find places to store the previously implicityly passed unit number in
the three configuration ioctls which need a unit number.

Add a "ccd.ctl" device for config operations.

Implement ioctls on ccd.ctl which rely on the explicityly passed
unit numbers.

Update ccdconfig to use the new ccd.ctl interface.

Add code to the kernel to detect old ccdconfig binaries, and whine
about it.

Add code to ccdconfig to detect old kernels, and whine about it.

These two compatibility measures will be retained only for a limited
period since they are in the way of GEOM'ification of ccd.
2003-01-17 14:53:53 +00:00