5cef006d40
Need to splbio()/splx() protect some of the reconstruction stuff.
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Without this, we have potentially bad interatctions with the pool
code.
1999-07-21 03:15:26 +00:00
ce7cb7114d
rf_UnconfigureVnodes() needs to be called in the DO_RAID_FAIL macro.
1999-07-19 01:36:07 +00:00
0c7600ca4e
sectorsPerStripeUnit should be larger than 0. If it isn't, simply fail.
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(Thanks to Thor Lancelot Simon for noting the problem).
1999-07-19 01:35:19 +00:00
324c76b3d9
Once upon a time, long long ago, there was a "fix" added to the
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RAIDframe driver to stop it from eating too much kernel memory when
writing data. But that fix had a nasty side-affect of hurting write
performance (*much* more than I thought it would). These changes nuke
that "fix", and instead put in a more reasonable mechanism for limiting
the number of simultaneous IO's which can be happening for each RAID device.
The result is a noticeable improvement in write throughput. The End.
1999-07-08 00:45:23 +00:00
5f1ede624f
Make the kthread API a bit friendlier to loadable kernel modules.
1999-07-06 21:51:22 +00:00
86abd11d42
Remember to pass down the proc pointer when adding a hot spare.
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(Thanks to Martin J. Laubach for helping track this one down.)
1999-06-13 20:36:17 +00:00
8c39e1bf02
When adding a hot spare, remember to lock down the main raidPtr
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structure before mucking with its contents.
1999-06-04 02:02:39 +00:00
60769ea563
At config time, initialize a small amount of space for the disk queues
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corresponding to the hot spares. We'll need that space when a spare is
actually added. Huge Thanks to Martin Laubach for helping track this down.
1999-06-04 01:51:00 +00:00
3af0ce9e19
Don't count two problems with a single component as two
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component failures! Also: remember to configure the disk queues for
the spares -- failure to do that is Bad(tm).
Huge Thanks to Martin Laubach for helping track this down.
1999-06-04 01:50:01 +00:00
daf0e5b05c
Replace two instances of TNF copyright with one (was replicated for two
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separate contributers).
1999-05-13 21:46:17 +00:00
4882ae464f
Fix a couple of compiler warnings on the Alpha. Pointed out by Tim Rightnour.
1999-04-12 19:39:59 +00:00
9f560505d4
Allow re-writing parity on a RAID 0 to trivially succeed, and to set the
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clean bit. This is somewhat bogus as RAID 0 does not have any parity,
but is a slightly cleaner than other solutions, and makes the handling
of clean bits for RAID 0 consistent with the handling of clean bits at
other RAID levels.
1999-04-07 14:17:10 +00:00
14de6c2418
Cleanup shutdown code - garbage collect (now) unused shutdownhooks() stuff.
1999-03-27 01:26:37 +00:00
efe288e520
Correct a component label problem where a RAID 1 set with a
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failed component would not configure properly in certain situations.
1999-03-18 03:02:38 +00:00
2ec2c2045f
Cleanup rf_RewriteParity() and rf_VerifyParity(). Nuke unused stuff,
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and make more readable.
1999-03-14 22:10:46 +00:00
414b788837
Disallow interrupting parity re-writes or copybacks by removing PCATCH
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from the tsleep()'s (they probably shouldn't have been there in the
first place!). Making parity re-writing and copybacks interruptable
will require re-designing how a few things are done (e.g. how memory
is freed for structures shipped off to routines that run asynchronously
relative to the calling routine). Fix a few other tsleep's while we're at it.
1999-03-14 21:53:31 +00:00
cd0a696176
Cleanup raidattach: move rf_boot's functionality to raidattach, and
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nuke rf_boot(). Cleanup raidopen().
1999-03-09 03:53:18 +00:00
e39fe5e2fe
Cleanup unused cruft.
1999-03-09 03:52:41 +00:00
29daf0c77d
rf_update_component_labels() now lives here. Re-work clean-bit
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support a little: clean-bits now also get frobbed on partition
opening/closing, rather than just at device configuration and device
unconfiguration. Schedule shutdownhooks() stuff for nukage at a later
date, since it isn't really necessary any more.
1999-03-09 02:59:25 +00:00
585c77594e
Move rf_update_component_labels() from here to rf_netbsdkintf.c.
1999-03-09 02:57:29 +00:00
98d8c12355
Update for recent changes including component label support, clean
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bits, rebuilding components in-place, adding hot spares, shutdownhooks, etc.
1999-03-02 03:18:48 +00:00
ee9187f136
After a vn_close(), set the vnode * to NULL so we don't try closing it
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again later.
1999-02-27 03:43:20 +00:00
a76f56098c
Do the VOP_UNLOCK() on an initialized vp, rather than random garbage.
1999-02-27 01:48:13 +00:00
65be57243f
Minor cleanups and code rearranging. Now knows a little about component
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labels and how to deal with hot-adding spare components. Still work in
progress -- component labels and hot-adding are not enabled (yet).
1999-02-24 00:00:03 +00:00
be9eca67c8
Cleanup/remove unused cruft. First kick at component labels and clean bits.
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Still work in progress. New code is there, but not enabled yet.
1999-02-23 23:57:53 +00:00
07b6b89dce
Move vnode cleanup code into one place. Cleanup a bit.
1999-02-23 23:55:29 +00:00
0d29172def
Do a VOP_UNLOCK() before a vn_close().
1999-02-23 23:53:37 +00:00
6d72c8f0e7
Minor cleanups that got missed last time through.
1999-02-11 01:23:32 +00:00
0014588545
Phase 2 of the RAIDframe cleanup. The source is now closer to KNF
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and is much easier to read. No functionality changes.
1999-02-05 00:06:06 +00:00
58f7de552d
Nuke more bits of RAIDframe "demo" code. We're not "demoing" here,
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we're doing the Real Thing!
1999-01-26 04:40:03 +00:00
472e649cd8
More simulator bits going bye-bye.
1999-01-26 04:05:01 +00:00
c52883118d
This stuff is no longer needed. Mostly simulator bits.
1999-01-26 03:56:21 +00:00
a37be85529
rf_ccmn.h no longer needed. Nuke it's inclusion from rf_disks.c.
1999-01-26 03:49:49 +00:00
d94a2c5b2a
These files are not used in the kernel driver. We don't need them any more.
1999-01-26 03:07:10 +00:00
1eecf8e491
RAIDframe cleanup, phase 1. Nuke simulator support, user-land driver,
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out-dated comments, and other unneeded stuff. This helps prepare
for cleaning up the rest of the code, and adding new functionality.
No functional changes to the kernel code in this commit.
1999-01-26 02:33:49 +00:00
edd259d12e
Make it so raidframe will only perform synchronous writes, and async
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reads. This avoids a problem where many writes will cause the driver
to allocate way too much memory.
This needs to change to a queueing system later, which will provide a
way to limit the memory consumed by the driver.
Without these changes, raidframe would use 24M or more on my machine when
the buffer cache dumped all its dirty blocks. Now it uses around 200k
or so.
1999-01-15 17:55:52 +00:00
d8f3aefec7
Use M_RAIDFRAME.
1999-01-14 22:49:05 +00:00
4128f9df1e
Duh... check that malloc() hasn't returned a NULL *before* we zero the buffer,
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not after. Pointed out by Michael Graff.
1999-01-14 20:29:38 +00:00
e392d933c8
Clean up some debugging stuff, and make it compile without warnings
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with -DDEBUG on alphas.
1998-12-22 20:03:14 +00:00
1b04131eff
Try a bit harder to detect the physical failure of a component, and to
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mark that component as dead. Physical failures are handled much better now.
1998-12-03 15:14:40 +00:00
3f3d8e85e6
If a configuration fails due to a non-existant spare, remember to release
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any previously allocated components before bailing. Credit to Manuel Bouyer
for noticing this.
1998-12-03 15:06:25 +00:00
679de7e878
Fix (potential) referencing of null pointer in (verbose) debugging mode.
1998-12-03 14:58:24 +00:00
b66ca92f4a
Initialize (to NULL) a variable in rf_CvscanPromote().
1998-11-18 15:13:51 +00:00
7eac22153a
Use types.h, endian.h and limits.h to configure the RAIDframe
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types correctly for all hardware platforms.
1998-11-16 04:14:10 +00:00
3f1c86b59e
compile with DEBUG=1
1998-11-15 00:01:24 +00:00
a0c0e7eff1
fix egcs warning
1998-11-13 13:47:56 +00:00
acdd660ace
fix callback type
1998-11-13 13:45:15 +00:00
a9c167b273
prototype un-prototyped functions
1998-11-13 11:51:55 +00:00
8e893eff9e
Add braces around 'if' to pacify egcs
1998-11-13 11:48:26 +00:00
38a3987b69
RAIDframe, version 1.1, from the Parallel Data Laboratory at
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Carnegie Mellon University. Full RAID implementation, including
levels 0, 1, 4, 5, 6, parity logging, and a few other goodies.
Ported to NetBSD by Greg Oster.
1998-11-13 04:20:26 +00:00
oster