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845 Commits

Author SHA1 Message Date
Stephan Uphoff
f7717523a2 Trace information about a buffer while we still control it. 
Reviewed by:    phk
Approved by:    sam (mentor)
 2004-10-11 21:22:59 +00:00
Søren Schmidt
39e6971cba Only do the geometry translations on ad* devices, other devices seems to 
have their own way of life.
Those other devices translations should be moved here as well.
 2004-10-08 21:27:27 +00:00
Pawel Jakub Dawidek
7aefe57c5c Be sure to always return 0 for negative access requests. 
Reported by:	Maciej Kucharz <qk@comp.waw.pl>
 2004-10-07 20:13:23 +00:00
Søren Schmidt
6c35773729 Move the PC98 specific geometry "gunk" to geom_pc98.c where it belongs. 
This also adds support for bigger disks on the controller I have access to,
and maybe others if I understood the adhoc methods used on those.

Those with more PC98 bigdrive controllers it is hereby invited to add/fix
support for those in geom_pc98.c and not using #ifdef PC98 all over the place.
 2004-10-07 17:37:09 +00:00
Poul-Henning Kamp
276f72c550 Don't set the BIO_ONQUEUE debugging flag until we actually put the bio 
onto a queue.  This made the ENOMEM handling an instant panic.
 2004-10-06 20:59:59 +00:00
Pawel Jakub Dawidek
dd12956ac7 Geoms without softc are geoms which are initialized, so wait for them. 2004-10-06 18:47:15 +00:00
Pawel Jakub Dawidek
18d2addc23 Look out for geoms without softc. 
Reported by:	tegge
 2004-10-06 14:15:47 +00:00
Pawel Jakub Dawidek
59883b3b34 Before root file system is mounted, wait for mirrors in degraded state. 2004-10-05 11:17:08 +00:00
Lukas Ertl
4cb1b18827 Don't allow to create a drive that already exists. 2004-10-02 20:50:21 +00:00
Lukas Ertl
d9d3a74c87 Correctly skip the '/dev/' part when creating new drives and prefix 
a drive's provider with '/dev/' when printing the config.

Reported by:  will@
 2004-10-02 20:12:20 +00:00
Pawel Jakub Dawidek
c7e17f4bbe Unlock g_gate_list_mtx mutex when we cannot allocate unit number. 
MT5 candidate.

PR:		kern/72253
Submitted by:	Ivan Voras <ivoras@fer.hr>
 2004-10-02 15:03:26 +00:00
Lukas Ertl
c3aadfb9d6 Make it possible to rebuild degraded RAID5 plexes. Note that it is 
currently not possible to do this while the volume is mounted.

MFC in:  1 week
 2004-09-30 12:57:35 +00:00
Poul-Henning Kamp
19fa21aa50 Protect the start/end counts on consumers and providers with the up/down 
mutexes.

Make it possible to also protect the disk statistics (at a minor cost in
performance) by setting bit 2 of kern.geom.collectstats.
 2004-09-28 11:56:37 +00:00
Pawel Jakub Dawidek
8dd5480d29 - Set maximum request size to MAXPHYS (128kB), instead of DFLPHYS (64kB). 
- Set minimum request size to sectorsize, instead of 512 bytes.

Approved by:	phk (some time ago)
 2004-09-28 08:34:27 +00:00
Pawel Jakub Dawidek
604fce4f60 Just use MAXPHYS as maximum I/O request size, instead of using my own 
#define for this purpose.
No functional change.
 2004-09-28 07:33:37 +00:00
Pawel Jakub Dawidek
e5e7825cc3 Decrease kern.geom.raid3.timeout to 4, so it is smaller than 
vfs.root.mountdelay by default.
 2004-09-27 22:12:14 +00:00
Pawel Jakub Dawidek
6c25233782 Deny invalid I/O requests which comes from userland here, because later 
we'll get a panic.
MT5 candidate.

Reviewed by:	phk
 2004-09-27 22:10:01 +00:00
Pawel Jakub Dawidek
d2fb9c62e2 Avoid race while synchronizing components. It is very hard to bump into, 
but it is possible:
1. Read data from good component for synchronization.
2. Write data to the same area.
3. Write synchronization data, which are now stale.

Found by:	tegge (for gmirror)
 2004-09-27 20:32:35 +00:00
Pawel Jakub Dawidek
829c0864cb Minor, but very important condition fix. The current one can never be true. 2004-09-27 19:32:26 +00:00
Pawel Jakub Dawidek
cf41526bdc Decrease kern.geom.mirror.timeout to 4, so it is smaller than 
vfs.root.mountdelay by default.
 2004-09-27 13:47:37 +00:00
Pawel Jakub Dawidek
0217ba9893 Forgot to commit addition of ds_resync field. 2004-09-26 20:42:35 +00:00
Pawel Jakub Dawidek
e8adbe4499 Avoid race while synchronizing components. It is very hard to bump into, 
but it is possible:
1. Read data from good component for synchronization.
2. Write data to the same area.
3. Write synchronization data, which are now stale.

Found by:	tegge
 2004-09-26 20:41:07 +00:00
Pawel Jakub Dawidek
31522023f9 Simplify code a bit. 2004-09-26 20:30:15 +00:00
Poul-Henning Kamp
a7830346e2 Assert topology is held in g_dev_getprovider(). 
Don't call devsw().  It is not necessary, and we do not need to hold dev_lock
to compare the devsw pointer to our own since we do not dereference it.
 2004-09-24 06:43:20 +00:00
Pawel Jakub Dawidek
201dfcf143 This is not needed anymore, it is forced in GEOM now. 
Actually, it can even cause some problems, because GEOM requires sectorsize
to be more than 0 on first access, not on provider creation, so we can skip
valid providers by doing this check here.

Reported by:	Divacky Roman <xdivac02@stud.fit.vutbr.cz>
		Sven Willenberger <sven@dmv.com>
 2004-09-20 17:26:25 +00:00
Max Khon
9cf3607da2 Use correct malloc type when freeing memory allocated by g_read_data. 
PR:		71431
Submitted by:	daichi
 2004-09-19 10:27:46 +00:00
Lukas Ertl
b916fcec4d Single concat or striped plexes don't need no special initialization 
if their subdisks are all available, so let them be brought up.
 2004-09-18 18:03:20 +00:00
Lukas Ertl
67e3ab6ee5 Re-vamp how I/O is handled in volumes and plexes. 
Analogous to the drive level, give each volume and plex a worker thread
that picks up and processes incoming and completed BIOs.

This should fix the data corruption issues that have come up a few
weeks ago and improve performance, especially of RAID5 plexes.

The volume level needs a little work, though.
 2004-09-18 13:44:43 +00:00
Max Khon
b3f05a2e9e g_nop_create: destroy newly created provider in case of errors. 2004-09-16 15:28:48 +00:00
Lukas Ertl
12653dec9d Give the DRIVE geom a worker thread that picks up incoming bios, 
sends them down, and takes care of the finished bios.  This makes it
easier to handle I/O errors at drive level.
 2004-09-13 21:01:36 +00:00
Lukas Ertl
fce2deb197 Rename gv_kill_thread() to gv_kill_plex_thread(), since there are more 
threads to come.
 2004-09-13 17:44:47 +00:00
Lukas Ertl
a0781b98f3 Save the config back to disk when a drive goes down. 2004-09-13 17:33:52 +00:00
Lukas Ertl
ea29a30466 Read a whole sector instead of GV_HDR_LEN, since a sector might be 
bigger (i.e. on CD-ROMs).
 2004-09-13 17:27:58 +00:00
Pawel Jakub Dawidek
7e8ca741ca Make kern.geom.debugflags sysctl tunable from /boot/loader.conf. 
It will help to debug problems when booting.

Approved by:	phk
 2004-09-13 14:58:27 +00:00
Poul-Henning Kamp
4090065137 Fix a problem that shows up if less than the full complement of 
lock sectors are defined ("number_of_keys" argument to gbde init being
less than 4 in the default compile).
 2004-09-11 17:58:53 +00:00
Poul-Henning Kamp
cbca0b53e5 Respect that G_BDE_MAXKEYS is a compile time variable. 2004-09-11 17:57:51 +00:00
Max Khon
51eb0765c6 Do not compile in zlib.c. Add a dependency on module instead. 2004-09-08 17:27:31 +00:00
Pawel Jakub Dawidek
f7b4d339ac Show current status of mirror device directly. 
Suggested by:	Krzysztof Ciep³ucha <kris@home.pl>
 2004-09-08 16:37:22 +00:00
Poul-Henning Kamp
5ae652c0ed For removable devices without media we set a zero mediasize but a non-zero 
sectorsize in order to avoid a lot of checks around various divisions etc.

Enforce the sectorsize being > 0 with a KASSERT on successful open.

Fix scsi_cd.c to return 2k sectors when no media inserted.
 2004-09-05 21:15:58 +00:00
Pawel Jakub Dawidek
6d7b8aecd3 Allow to configure debug level from /boot/loader.conf. 2004-08-30 18:50:06 +00:00
Poul-Henning Kamp
dcbd0fe5aa Add more KASSERTS and checks. 2004-08-30 09:33:06 +00:00
Pawel Jakub Dawidek
45d5e85a40 GCC, ehh. 2004-08-29 14:29:30 +00:00
Pawel Jakub Dawidek
c0d68b6ef2 Use sc->sc_mediasize instead of sc->sc_provider->mediasize which contains 
exactly the same value, but is shorter.
 2004-08-28 02:35:43 +00:00
Pawel Jakub Dawidek
08249e9e6e Warn the user if we are not going to use whole provider space. 
Requested by:	Michael Handler <handler@grendel.net>
 2004-08-28 02:34:10 +00:00
Pawel Jakub Dawidek
16ebaa0793 Don't allow to insert providers, which are too small. 
Reported by:	Michael Handler <handler@grendel.net>
 2004-08-28 02:02:48 +00:00
Lukas Ertl
5bad268cdc Move config_new_drive() to the correct place and rename it to 
gv_config_new_drive().
 2004-08-27 21:32:18 +00:00
Poul-Henning Kamp
a2033c9615 Introduce g_alloc_bio() as a waiting variant of g_new_bio(). 
Use in places where we can sleep and where we previously failed to check
for a NULL pointer.

MT5 candidate.
 2004-08-27 14:43:11 +00:00
Lukas Ertl
4328802ce9 When attaching a consumer from a volume to a plex, check if the 
volume already has a plex attached and adjust the access counts
of the new consumer accordingly.
 2004-08-26 21:04:41 +00:00
Pawel Jakub Dawidek
29c78ab315 Skip providers with not defined sector size. 
Reported by:	kuriyama
 2004-08-26 12:42:47 +00:00
Pawel Jakub Dawidek
4cf67afe37 Log verification errors at level 1. 2004-08-25 19:18:07 +00:00