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* Use unit number allocation functions for GEOM minor numbers.phk2004-10-251-8/+0
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* Make withering water tight.phk2004-07-081-0/+2
| | | | | | | | | When we orphan/wither a provider, an attached geom+consumer could end up being withered as a result and it may be in front of us in the normal object scanning order so we need to do multi-pass. On the other hand, there may be withering stuff we can't get rid off (yet), so we need to keep track of both the existence of withering stuff and if there is more we can do at this time.
* Rearrange some of the GEOM debugging tools to be more structured.phk2004-03-101-3/+1
| | | | | | | | | | | | | | | | | | Retire g_sanity() and corresponding debugflag (0x8) Retire g_{stall,release}_events(). Under #ifdef DIAGNOSTIC: Make g_valid_obj() an official function and have it return an an non-zero integer which indicates the kind of object when found. Implement G_VALID_{CLASS,GEOM,CONSUMER,PROVIDER}() macros based on g_valid_obj(). Sprinkle calls to these macros liberally over the infrastructure. Always check that we do not free a live object.
* More of the event stuff can now be private to geom_event.cphk2003-04-231-11/+0
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* Rename g_call_me() to g_post_event(), and give it a flagphk2003-04-231-1/+1
| | | | argument to determine if we can M_WAITOK in malloc.
* Remove the now unused hardcoded g_post_event() event support.phk2003-04-231-12/+0
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* Turn EV_NEW_PROVIDER into a g_call_me() event.phk2003-04-231-1/+0
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* Convert EV_SPOILED event to use g_call_me().phk2003-04-231-1/+0
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* Turn the hardwired NEW_CLASS event into a g_call_me() event.phk2003-04-231-1/+0
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* Move the shutdown eventhandler stuff to a more logical place.phk2003-04-231-0/+1
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* Add handling for cancelled events in the g_call_me() methods.phk2003-04-021-1/+0
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* Change events to have an array of "void *" references, and give thephk2003-04-021-9/+8
| | | | | | | | | | | event posting functions varargs to fill these. Attribute g_call_me() to appropriate g_geom's where necessary. Add a flag argument to g_call_me() methods which will be used to signal cancellation of events in the future. This commit should be a no-op.
* Remove some debugging in the new OAM[*] and add a debug flag for otherphk2003-03-311-0/+1
| | | | | | | | | parts of it. [*] I've been asked what "OAM" means: It's an acronym used in the telecom industry, "Operations And Maintenance", and there it covers anything from a single unlabeled led on the frontpanel the the full nightmare of CMIP for SS7.
* Turn /dev/geom.ctl from a GEOM class into a plain character device driverphk2003-03-241-0/+3
| | | | instead, it will never see a disk-I/O transaction, so this is a lot simpler.
* Introduce g_cancel_events() and use it a couple of places where it makesphk2003-03-231-0/+1
| | | | sense.
* Introduce an SX lock which allows us to stall event processingphk2003-03-231-0/+2
| | | | during OAM operations.
* Mitigate deadlock situation pending a more complete solution.phk2003-03-211-1/+4
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* Retire the GEOM private statistics code and use devstat instead.phk2003-03-181-5/+0
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* Implement a handle for efficient implementation of perforations inphk2003-02-121-4/+7
| | | | | | | | | | | | | lower extremities. Setting bit 4 in debugflags (sysctl kern.geom.debugflags=16) will allow any open to succeed on rank#1 providers. This will generally correspond to the physical disk devices: ad0, da0, md0 etc. This fundamentally violates the mechanics of GEOMs autoconfiguration, and is only provided as a debugging facility, so obviously error reports on GEOM where this bit is or has been set will not be accepted.
* Move the g_stat struct to its own .h file, we will export it to other code.phk2003-02-081-0/+5
| | | | | | | | | | | | | | | | | | Insted of embedding a struct g_stat in consumers and providers, merely include a pointer. Remove a couple of <sys/time.h> includes now unneeded. Add a special allocator for struct g_stat. This allocator will allocate entire pages and hand out g_stat functions from there. The "id" field indicates free/used status. Add "/dev/geom.stats" device driver whic exports the pages from the allocator to userland with mmap(2) in read-only mode. This mmap(2) interface should be considered a non-public interface and the functions in libgeom (not yet committed) should be used to access the statistics data.
* Move #defines of major/minor to internal header file so other bits canphk2003-02-081-1/+8
| | | | share and coordinate with geom_dev.
* Commit the correct copy of the g_stat structure.phk2003-02-071-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add debug.sizeof.g_stat sysctl. Set the id field of the g_stat when we create consumers and providers. Remove biocount from consumer, we will use the counters in the g_stat structure instead. Replace one field which will need to be atomically manipulated with two fields which will not (stat.nop and stat.nend). Change add companion field to bio_children: bio_inbed for the exact same reason. Don't output the biocount in the confdot output. Fix KASSERT in g_io_request(). Add sysctl kern.geom.collectstats defaulting to off. Collect the following raw statistics conditioned on this sysctl: for each consumer and provider { total number of operations started. total number of operations completed. time last operation completed. sum of idle-time. for each of BIO_READ, BIO_WRITE and BIO_DELETE { number of operations completed. number of bytes completed. number of ENOMEM errors. number of other errors. sum of transaction time. } } API for getting hold of these statistics data not included yet.
* Add the remaning part of the new libdisk interaction.phk2002-10-281-0/+1
| | | | | | | WARNING: This is not a published interface, it is a stopgap measure for WARNING: libdisk so we can get 5.0-R out of the door. Sponsored by: DARPA & NAI Labs
* Properly isolate the locking domains of sysctl from the topology lockphk2002-10-041-3/+3
| | | | | | for the sysctls which report the configuration. Sponsored by: DARPA & NAI Labs.
* Disable the g_sanity() check unless people ask for it in the debugflags.phk2002-09-301-0/+4
| | | | Sponsored by: DARPA & NAI Labs.
* Style, whitespace and lint fixes.phk2002-09-281-1/+0
| | | | Sponsored by: DARPA & NAI Labs.
* Implement g_call_me() as a way for geom methods to schedule operationsphk2002-09-271-0/+3
| | | | | | | | | | | | | | | | to be performed in the event-thread. To do this, we need to lock the eventlist with g_eventlock (nee g_doorlock), since g_call_me() being called from the UP/DOWN paths will not be able to aquire g_topology_lock. This also means that for now these events are not referenced on any particular consumer/provider/geom. For UP/DOWN path use, this will not become a problem since the access() function will make sure we drain any bio's before we dismantle. Sponsored by: DARPA & NAI Labs.
* s/classs/classes/ to fixup grammer after the previous global renaming.phk2002-04-041-1/+1
| | | | Sponsored by: DARPA & NAI Labs
* Eliminate some thread pointers which do not make sense anymore.phk2002-03-261-0/+87
Split private parts of geom.h into geom_int.h. The latter should never be included in class implemtations.
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