Commit Graph

108 Commits

Author SHA1 Message Date
lukem 8c09644630 * The kernel's struct ccd_softc has extra structure members over the
userland version; provide another ccd global variable (ccd_softc_elemsize)
  containing the kernel's size, and use that it ccdconfig(8) to convert the
  kernel's ccd_softc into userland versions.
  Fixes 'ccdconfig -g'.
* Use DISKUNIT() instead of home-grown cruft to determine the `N' of "ccdN".
  Fixes 'ccdconfig -g ccd1'.
* Use (void *) instead of (char *) in the calls to kvm_read().

XXX: ccd could be converted from nlist to sysctl.  "Someone else's yak shave".
2006-02-16 23:25:18 +00:00
christos 95e1ffb156 merge ktrace-lwp. 2005-12-11 12:16:03 +00:00
yamt aec75b1cc6 - change the way to specify a bufq strategy. (by string rather than by number)
- rather than embedding bufq_state in driver softc,
  have a pointer to the former.
- move bufq related functions from kern/subr_disk.c to kern/subr_bufq.c.
- rename method to strategy for consistency.
- move some definitions which don't need to be exposed to the rest of kernel
  from sys/bufq.h to sys/bufq_impl.h.
  (is it better to move it to kern/ or somewhere?)
- fix some obvious breakage in dev/qbus/ts.c.  (not tested)
2005-10-15 17:29:10 +00:00
yamt bc505ef8dd use pseudo_disk_{init,attach,detach} where appropriate. 2005-08-20 12:01:04 +00:00
christos 7cdea212c0 No 0x in front of %p... 2005-05-22 15:54:45 +00:00
yamt 99229e5d39 introduce a function to drain bufq and use it where appropriate. 2005-03-31 11:28:53 +00:00
perry f31bd063e9 nuke trailing whitespace 2005-02-27 00:26:58 +00:00
yamt 05f25dcc2a move buffer queue related stuffs from buf.h to their own header, bufq.h. 2004-10-28 07:07:35 +00:00
thorpej f64a29d708 Implement the DIOCCACHESYNC ioctl; we simply pass it through to each
underlying component.
2004-10-26 22:44:45 +00:00
yamt 22399b45d0 change some members of struct buf from long to int.
ride on 2.0H.
2004-09-18 16:40:11 +00:00
thorpej 4152bad13d Remove a comment that doesn't really make sense. 2004-08-23 05:38:15 +00:00
thorpej b8d3850087 Use ANSI function decls and more use of static. 2004-08-23 04:38:42 +00:00
itojun d2f1c029b9 kill sprintf, use snprintf 2004-04-21 18:40:37 +00:00
hannken 3db4e2acd8 Make VOP_STRATEGY(bp) a real VOP as discussed on tech-kern.
VOP_STRATEGY(bp) is replaced by one of two new functions:

- VOP_STRATEGY(vp, bp)  Call the strategy routine of vp for bp.
- DEV_STRATEGY(bp)      Call the d_strategy routine of bp->b_dev for bp.

DEV_STRATEGY(bp) is used only for block-to-block device situations.
2004-01-25 18:06:48 +00:00
yamt 7266a95907 store a i/o priority hint in struct buf for buffer queue discipline. 2004-01-10 14:39:50 +00:00
chs 44d9d27c84 don't print an uninitialized variable. 2003-10-26 23:42:57 +00:00
lukem 0b441623fe Add user flag CCDF_NOLABEL to prevent the on-disk label from being read
during CCDIOCSET.
Use this when creating a new ccd to ignore any existing disklabel
which is probably wrong.
2003-10-17 05:16:15 +00:00
agc aad01611e7 Move UCB-licensed code from 4-clause to 3-clause licence.
Patches provided by Joel Baker in PR 22364, verified by myself.
2003-08-07 16:26:28 +00:00
fvdl d5aece61d6 Back out the lwp/ktrace changes. They contained a lot of colateral damage,
and need to be examined and discussed more.
2003-06-29 22:28:00 +00:00
darrenr 960df3c8d1 Pass lwp pointers throughtout the kernel, as required, so that the lwpid can
be inserted into ktrace records.  The general change has been to replace
"struct proc *" with "struct lwp *" in various function prototypes, pass
the lwp through and use l_proc to get the process pointer when needed.

Bump the kernel rev up to 1.6V
2003-06-28 14:20:43 +00:00
thorpej 2f25411d28 Use a buffer queue. Primary advantage here is robustness in the face
of temporary resource shortages.
2003-05-17 21:42:08 +00:00
thorpej 4aef050969 Add DIOCKLABEL support. Fixes PR kern/21605 (Luke Mewburn). 2003-05-17 16:11:52 +00:00
thorpej e43fecb228 Change bounds_check_with_label() to take a pointer to the disk structure,
rather than the label itself.  This paves the way for some future changes.
2003-05-10 23:12:28 +00:00
dsl d91455ce26 Change return type of readdisklabel() to const char *
I hope I've found all the correct places!
2003-05-02 08:45:10 +00:00
dsl bd99e3429d Use 'void *' instead of 'caddr_t' in prototypes of VOP_IOCTL, VOP_FCNTL
and VOP_ADVLOCK, delete casts from callers (and some to copyin/out).
2003-03-21 23:11:19 +00:00
thorpej eb14e86676 Add a new BUF_INIT() macro which initializes b_dep and b_interlock, and
use it.  This fixes a few places where either b_dep or b_interlock were
not properly initialized.
2003-02-25 20:35:31 +00:00
pk 338f31f581 Make the buffer cache code MP-safe. 2003-02-05 21:38:38 +00:00
kleink 4e0e5333ae Fix further printf format warnings for DEBUG, in the wake of daddr_t
having changed.
2003-01-25 23:00:09 +00:00
mrg 603098b9b5 implement separate read/write disk statistics:
- disk_unbusy() gets a new parameter to tell the IO direction.
	- struct disk_sysctl gets 4 new members for read/write bytes/transfers.
	when processing hw.diskstats, add the read&write bytes/transfers for
	the old combined stats to attempt to keep backwards compatibility.

unfortunately, due to multiple bugs, this will cause new kernels and old
vmstat/iostat/systat programs to fail.  however, the next time this is
change it will not fail again.

this is just the kernel portion.
2002-11-01 11:31:50 +00:00
jdolecek e0cc03a09b merge kqueue branch into -current
kqueue provides a stateful and efficient event notification framework
currently supported events include socket, file, directory, fifo,
pipe, tty and device changes, and monitoring of processes and signals

kqueue is supported by all writable filesystems in NetBSD tree
(with exception of Coda) and all device drivers supporting poll(2)

based on work done by Jonathan Lemon for FreeBSD
initial NetBSD port done by Luke Mewburn and Jason Thorpe
2002-10-23 09:10:23 +00:00
gehenna 77a6b82b27 Merge the gehenna-devsw branch into the trunk.
This merge changes the device switch tables from static array to
dynamically generated by config(8).

- All device switches is defined as a constant structure in device drivers.

- The new grammer ``device-major'' is introduced to ``files''.

	device-major <prefix> char <num> [block <num>] [<rules>]

- All device major numbers must be listed up in port dependent majors.<arch>
  by using this grammer.

- Added the new naming convention.
  The name of the device switch must be <prefix>_[bc]devsw for auto-generation
  of device switch tables.

- The backward compatibility of loading block/character device
  switch by LKM framework is broken. This is necessary to convert
  from block/character device major to device name in runtime and vice versa.

- The restriction to assign device major by LKM is completely removed.
  We don't need to reserve LKM entries for dynamic loading of device switch.

- In compile time, device major numbers list is packed into the kernel and
  the LKM framework will refer it to assign device major number dynamically.
2002-09-06 13:18:43 +00:00
lukem 06de426449 SIMPLEQ rototill:
- implement SIMPLEQ_REMOVE(head, elm, type, field).  whilst it's O(n),
  this mirrors the functionality of SLIST_REMOVE() (the other
  singly-linked list type) and FreeBSD's STAILQ_REMOVE()
- remove the unnecessary elm arg from SIMPLEQ_REMOVE_HEAD().
  this mirrors the functionality of SLIST_REMOVE_HEAD() (the other
  singly-linked list type) and FreeBSD's STAILQ_REMOVE_HEAD()
- remove notes about SIMPLEQ not supporting arbitrary element removal
- use SIMPLEQ_FOREACH() instead of home-grown for loops
- use SIMPLEQ_EMPTY() appropriately
- use SIMPLEQ_*() instead of accessing sqh_first,sqh_last,sqe_next directly
- reorder manual page; be consistent about how the types are listed
- other minor cleanups
2002-06-01 23:50:52 +00:00
thorpej a180cee23b Pool deals fairly well with physical memory shortage, but it doesn't
deal with shortages of the VM maps where the backing pages are mapped
(usually kmem_map).  Try to deal with this:

* Group all information about the backend allocator for a pool in a
  separate structure.  The pool references this structure, rather than
  the individual fields.
* Change the pool_init() API accordingly, and adjust all callers.
* Link all pools using the same backend allocator on a list.
* The backend allocator is responsible for waiting for physical memory
  to become available, but will still fail if it cannot callocate KVA
  space for the pages.  If this happens, carefully drain all pools using
  the same backend allocator, so that some KVA space can be freed.
* Change pool_reclaim() to indicate if it actually succeeded in freeing
  some pages, and use that information to make draining easier and more
  efficient.
* Get rid of PR_URGENT.  There was only one use of it, and it could be
  dealt with by the caller.

From art@openbsd.org.
2002-03-08 20:48:27 +00:00
tsutsui cf839323de Call malloc(9) with M_ZERO flag instead of memset() after malloc(). 2002-01-13 19:28:06 +00:00
lukem 2bbe2de647 add RCSIDs 2001-11-13 05:32:49 +00:00
jdolecek 539f3bcc23 change ccio_ndisks and sc_nccdisks of struct ccd_ioctl from int to u_int
introduce hard limit on number of disks which can be contcatenated togetger,
CCD_MAXNDISKS
2001-08-05 11:20:13 +00:00
thorpej c8b4ac1b17 bcopy -> memcpy
bzero -> memset
2001-07-07 17:04:01 +00:00
fvdl d040bd5908 Return error in the case of using ODIOCGDINFO or ODIOCGDEFLABEL when
the number of partitions is > OLDMAXPARTITIONS. This is better
than silently truncating the label (don't want to silently throw
away partitions when using an old disklabel binary on a label with
> 8 partitions). From Enami Tsugutomo.
2001-01-08 02:03:45 +00:00
fvdl e2d1c1f926 Adapt all disk devices in MI directories to handle ODIOC* calls
for ports that have bumped MAXPARTITIONS (and thus define
__HAVE_OLD_DISKLABEL).
2001-01-07 18:09:01 +00:00
enami 07702f68a6 Introduce new filesystem type FS_CCD so that an operator can mark the
ccd component partition.  Note that the ccd driver still allows partitions
of any types as components since an on-disk BSD disklabel isn't available
on some port.
2000-04-05 04:03:20 +00:00
augustss 169ac5b3c1 Remove register declarations. 2000-03-30 12:41:09 +00:00
enami aa8b5ebd93 On initialization failure, free all the storage allocated to store
component pathnames rather than the last one.
2000-03-16 03:54:01 +00:00
enami 34d63b5623 Since we now only allocate this one, no longer necessary to check and free(). 2000-02-08 12:56:00 +00:00
fvdl 0b1963121a Add Kirk McKusick's soft updates code to the trunk. Not enabled by
default, as the copyright on the main file (ffs_softdep.c) is such
that is has been put into gnusrc. options SOFTDEP will pull this
in. This code also contains the trickle syncer.

Bump version number to 1.4O
1999-11-15 18:49:07 +00:00
chs f13d3f5b3b from jason:
avoid biodone()ing the original buf twice when a component buf
gets an error.  fixes PR 8704.
1999-11-03 16:04:03 +00:00
thorpej dd5ae858e0 We really only need *one* componenet buffer pool... 1999-08-11 02:41:02 +00:00
mjacob fefcc128bf a kindler gentler fix 1999-03-04 02:38:19 +00:00
mjacob 7790083b17 adjust format args for compiler changes 1999-03-04 02:20:13 +00:00
thorpej 94962b67c7 Fix some printf format problems on Alpha. 1999-02-12 00:46:11 +00:00
thorpej c6aa25bfa1 Fix a st00p1d bug I introduced in rev 1.57, which would cause any activity
on non-0 CCD units to crash the system.
1999-01-21 00:35:15 +00:00