Commit Graph

21 Commits

Author SHA1 Message Date
Greg Lehey
9db2b74e40 Note when we issue a request to the disk driver, so that we can
measure the time it spends.
2003-05-01 13:06:00 +00:00
Greg Lehey
7b4bf18baa Change #if VINUMDEBUG to #ifdef VINUMDEBUG. This is a flag, not a variable. 2001-05-23 23:24:05 +00:00
Greg Lehey
2c4a6d9016 Add xferinfo flag bit for copied buffers.
Create a new struct rangelockinfo.  In revision 1.21 of vinumlock.c,
the plex info was removed from struct rangelock, since it wasn't
needed there.  It *is* needed for trace information, however, so use
struct rangelockinfo for that.
2001-05-22 02:28:55 +00:00
Greg Lehey
4fd45755c5 Add flag XFR_BUFLOCKED to identify buffers which have been locked.
Part of fix to ensure that we unlock buffers we lock.

In principle submitted by: tegge
2000-12-20 05:10:08 +00:00
Greg Lehey
984e8b9ada Modify the manner in which we lock RAID-5 plexes. This appears to
solve some of the elusive panics we have seen with corrupted buffer
headers (specifically the zeroed-out b_iodone field).

Submitted-by:	      Bernd Walter <ticso@cicely.de>
2000-01-05 06:09:43 +00:00
Greg Lehey
8409d98998 Add some private storage so that we can queue requests in an interrupt
environment even if malloc fails.
1999-10-13 03:16:05 +00:00
Greg Lehey
9bd4ba1364 Add loginfo type for sdiodone. 1999-09-28 22:27:10 +00:00
Greg Lehey
950da56038 struct rqgroup: put 0-length array at the end. Make mental note not
to write such crap again.

Spotted-by:	Parag Patel <parag@cgt.com>
1999-09-05 06:32:20 +00:00
Peter Wemm
c3aac50f28 $Id$ -> $FreeBSD$ 1999-08-28 01:08:13 +00:00
Greg Lehey
fe89164039 Add support for logging subdisk I/O.
Change parameters of unlockrange to allow calling from revive_block,
which doesn't use request groups.
1999-08-24 02:17:42 +00:00
Greg Lehey
98256dfef8 Clarify some comments.
struct rqelement, enum rqinfo_type, struct rqinfo, union rqinfou: add
lock requests.

Add declarations for freerq and unlockrange.  Since they include
request structures, they can't go in vinumext.h
1999-08-14 06:21:45 +00:00
Greg Lehey
9640a3a8f8 Rework many comments.
requeststatus:
  add REQUEST_DEGRADED status

struct rqinfo:
  add members devmajor and devminor to compensate for lost dev_t.
1999-08-07 08:05:19 +00:00
Greg Lehey
8cbc0348f6 Clarify some comments.
struct request:
  Add a daemon function to close drives when they go down.
1999-06-24 08:52:27 +00:00
Greg Lehey
6f70e1c542 Modify to compile with egcs.
Prodded-by: obrien
1999-03-18 23:26:22 +00:00
Greg Lehey
7f1050341c Change multiline comments to start with a lone /* and end with a */,
apparently in accordance with style(9).

Complained-about-by: bde
1999-01-29 01:17:54 +00:00
Greg Lehey
7230cf7d2a Include Peter Wemm's renaming and restructuring
Change from lkm to kld

Add structures for daemon

Remove old cruft

Increase RQINFO_SIZE to 128
1999-01-21 00:29:44 +00:00
Peter Wemm
c285ca1254 Some relatively minor tweaks to enable vinum to be built into a static
kernel as a pseudo-device.  The changes were:
- #ifdef DEBUG -> #ifdef VINUMDEBUG
- opt_vinum.h for holding above config variable
- Fixing up a few stray problems where DEBUG wasn't optional.
- config.c -> vinumconfig.c (there's already a config.o)
- Other *.c -> vinum*.c (wasn't strictly necessary, but done in case we end
  up with something else conflicting later on and we might have to have yet
  more repository copies of files).
- include file paths fixups..  (ie: get them all from the kernel tree
  instead of partly from the kernel and partly from /usr/include/machine)

I've spoken with Greg about this..  I hope this doesn't mess him around
too much..
1998-12-28 16:28:24 +00:00
Peter Wemm
ef2dbe9885 If I've done this right, revive the vinum code in it's now home after it
was savaged in the blood bath a few hours ago.
1998-12-28 04:56:24 +00:00
Søren Schmidt
c74cd3590f Remove LKM's depricated by modules. 1998-12-27 19:38:15 +00:00
Greg Lehey
721fbc5ae0 config.c:
config_drive:
    Catch an instance of anonymous drives.  Doubtless many remain.

interrupt.c:
  complete_rqe:
    Call logrq to log iodone events if DEBUG_LASTREQS is set.

    Call set_sd_state with setstate_noupdate to avoid buffered I/O out
    of interrupt context.

    Use define DEBUG_RESID instead of constant.

memory.c:
  Remove dead expandrq() function

  Malloc:
    Remove directory component of file names in malloc table.

  Add function vinum_rqinfo (part of the request tracing stuff).

request.c:
  Add function logrq (part of the request tracing stuff).

  vinumstrategy:
    Check whether config needs to be written to disk, do it if so.
    This is a stopgap until the Vinum daemon (bacchusd?  oenologistd?)
    is written.

    If DEBUG_LASTREQS is set, call logrq to log user buffer headers.

  launch_requests:
    Correct format of debug output to console.

    If DEBUG_LASTREQS is set, call logrq to log request elements.

request.h:
  Add definitions for request trace.

state.c:
  set_sd_state:
    Check flags for setstate_noupdate.  If set, don't write the config
    to disk, just set global VF_DIRTYCONFIG flag.  This is part of the
    kludge to avoid writing config from an interrupt context.

vinumext.h:
    Add declaration for vinum_rqinfo, put inside #ifdef DEBUG
    Remove dead macro expandrq

vinumio.h:
  Increase maximum ioctl reply length to 4 kB if DEBUG is set.
  Define VINUM_RQINFO ioctl if DEBUG is set.

vinumioctl.c:
  vinumioctl:
    Change implementation of VINUM_DEBUG ioctl: use a debug flag
    (DEBUG_REMOTEGDB) to decide whether to go into remote debugging or
    not.

    Implement VINUM_RQINFO.

vinumkw.h:
  Define kw_info even when not debugging.

vinumvar.h:
  Define VF_DIRTYCONFIG
  Add pointers to request info to vinum_info if DEBUG is set.
  Define setstate_noupdate
  Define additional debug bits DEBUG_RESID, DEBUG_LASTREQS and
  DEBUG_REMOTEGDB.
1998-10-21 08:32:32 +00:00
Greg Lehey
e4381fa521 Import base vinum lkm sources 1998-09-16 05:56:21 +00:00