Commit Graph

267 Commits

Author SHA1 Message Date
davidxu
a8cf0ae648 Just like dofilewrite(), call bwillwrite before fo_write. 2006-01-27 08:02:25 +00:00
davidxu
7a2375b9e4 return final error code in aio_return rather than a hardcoded 0. 2006-01-27 04:14:16 +00:00
davidxu
e2e1fa02bc in aio_aqueue, store same return code into job->_aiocb_private.error.
in aio_return, unlock proc lock before suword.
2006-01-26 08:37:02 +00:00
davidxu
1f5105d8a7 Add locking annotation and comments about socket, pipe, fifo problem.
Temporarily fix a locking problem for socket I/O.
2006-01-24 07:24:24 +00:00
davidxu
edbd69603d Er, rescure a deleted comment line. 2006-01-24 02:50:42 +00:00
davidxu
acb3d897fb More cleanup for aio code:
1) unregsiter kqueue filter for EVFILT_LIO.
2) free uma_zones.
3) call setsid directly to enter another session rather than
   implementing by itself.

Submitted by: jhb
2006-01-24 02:46:15 +00:00
davidxu
4aec3469f3 Add bracket. 2006-01-23 23:46:30 +00:00
davidxu
14cd6d7f49 Verify all supported notification types. 2006-01-23 10:27:15 +00:00
davidxu
47e7cba205 1) Merge _aio_aqueue and aio_aqueue, check quota in aio_aqueue,
so that lio_listio won't exceed the quota.
2) Remove lio_ref_count, it is no longer used.
2006-01-23 02:49:34 +00:00
davidxu
7c1b5ba95e Fix a bogus panic. 2006-01-22 09:39:59 +00:00
davidxu
362cb85fb6 Decrease kaio_active_count first, because user process may go away
after we notified it.
2006-01-22 09:25:52 +00:00
davidxu
72c8645faa Make aio code MP safe. 2006-01-22 05:59:27 +00:00
csjp
ef078951d6 Initialize ki to p->p_aioinfo after we know it's going to be referencing
a valid kaioinfo structure. This avoids a potential NULL pointer dereference.

Found with:	Coverity Prevent(tm)
MFC after:	2 weeks
2006-01-15 01:55:45 +00:00
jhb
0beb1bf77b Return error from fget_write() rather than hardcoding EBADF now that
fget_write() DTRT.

Requested by:	bde
2006-01-06 16:34:22 +00:00
davidxu
ce1172e446 In aio_waitcomplete, do not return EAGAIN if no other threads
have started aio, instead, initialize aio management structure
if it hasn't been done, the reason to adjust this behavior is
to make it a bit friendly for threaded program, consider two
threads, one submits aio_write, and another just calls
aio_waitcomplete to wait any I/O to be completed and recycle the
aio requests, before submitter doing any I/O, the recycler wants
to wait in kernel. This also fixes inconsistency with other aio
syscalls.
2005-11-08 23:48:32 +00:00
jhb
7b0555d459 Various and sundry cleanups:
- Use curthread for calls to knlist_delete() and add a big comment
  explaining why as well as appropriate assertions.
- Use TAILQ_FOREACH and TAILQ_FOREACH_SAFE instead of handrolling them.
- Use fget() family of functions to lookup file objects instead of
  grovelling around in file descriptor tables.
- Destroy the aio_freeproc mutex if we are unloaded.

Tested on:	i386
2005-11-08 17:43:05 +00:00
davidxu
ae161ac239 Fix name compatible problem with POSIX standard. the sigval_ptr and
sigval_int really should be sival_ptr and sival_int.
Also sigev_notify_function accepts a union sigval value but not a
pointer.
2005-11-04 09:41:00 +00:00
davidxu
064df4ad12 Support sending realtime signal information via signal queue, realtime
signal memory is pre-allocated, so kernel can always notify user code.
2005-11-03 05:25:26 +00:00
jhb
2eddf38ca6 Push down Giant into fdfree() and remove it from two of the callers.
Other callers such as some rfork() cases weren't locking Giant anyway.

Reviewed by:	csjp
MFC after:	1 week
2005-11-01 17:13:05 +00:00
davidxu
a27888aa88 Fix sigevent's POSIX incompatible problem by adding member fields
sigev_notify_function and sigev_notify_attributes. AIO syscalls
use sigevent, so they have to be adjusted.

Reviewed by:	alc
2005-10-30 02:12:49 +00:00
ambrisko
261193a68f Fix tinderbox box by removing incomplete/bad spl usage. Proper giant free
locking is required in for aio.

Pointed out by:	imp
2005-10-12 22:33:22 +00:00
ambrisko
e3a46811b7 Add in kqueue support to LIO event notification and fix how it handled
notifications when LIO operations completed.  These were the problems
with LIO event complete notification:
      -	Move all LIO/AIO event notification into one general function
	so we don't have bugs in different data paths.  This unification
	got rid of several notification bugs one of which if kqueue was
	used a SIGILL could get sent to the process.
      -	Change the LIO event accounting to count all AIO request that
	could have been split across the fast path and daemon mode.
	The prior accounting only kept track of AIO op's in that
	mode and not the entire list of operations.  This could cause
	a bogus LIO event complete notification to occur when all of
	the fast path AIO op's completed and not the AIO op's that
	ended up queued for the daemon.

Suggestions from:	alc
2005-10-12 17:51:31 +00:00
alc
38bf328ab8 Eliminate inconsistency in the setting of the B_DONE flag. Specifically,
make the b_iodone callback responsible for setting it if it is needed.
Previously, it was set unconditionally by bufdone() without holding
whichever lock is shared by the b_iodone callback and the corresponding
top-half function.  Consequently, in a race, the top-half function could
conclude that operation was done before the b_iodone callback finished.
See, for example, aio_physwakeup() and aio_fphysio().

Note: I don't believe that the other, more widely-used b_iodone callbacks
are affected.

Discussed with: jeff
Reviewed by: phk
MFC after: 2 weeks
2005-07-20 19:06:06 +00:00
ssouhlal
efe31cd3da Fix the recent panics/LORs/hangs created by my kqueue commit by:
- Introducing the possibility of using locks different than mutexes
for the knlist locking. In order to do this, we add three arguments to
knlist_init() to specify the functions to use to lock, unlock and
check if the lock is owned. If these arguments are NULL, we assume
mtx_lock, mtx_unlock and mtx_owned, respectively.

- Using the vnode lock for the knlist locking, when doing kqueue operations
on a vnode. This way, we don't have to lock the vnode while holding a
mutex, in filt_vfsread.

Reviewed by:	jmg
Approved by:	re (scottl), scottl (mentor override)
Pointyhat to:	ssouhlal
Will be happy:	everyone
2005-07-01 16:28:32 +00:00
alc
43bc57303e In lio_listio(2) change jobref from an int to a long so that
lio_listio(LIO_WAIT, ...) works correctly on 64-bit architectures.

Reviewed by: tegge
2005-06-07 05:28:21 +00:00
alc
981752ea4e Eliminate an unused field from struct aio_liojob. 2005-06-05 05:41:48 +00:00
alc
369cab6800 Eliminate the original method of requesting notification of aio_read(2) and
aio_write(2) completion through kevent(2).  This method does not work on
64-bit architectures.  It was deprecated in FreeBSD 4.4.  See revisions
1.87 and 1.70.2.7.

Change aio_physwakeup() to call psignal(9) directly rather than indirectly
through a timeout(9).  Discussed with: bde

Correct a bug introduced in revision 1.65 that could result in premature
delivery of a signal if an lio_listio(2) consisted of a mixture of
direct/raw and queued I/O operations.  Observed by: tegge

Eliminate a field from struct kaioinfo that is now unused.

Reviewed by: tegge
2005-06-04 19:16:33 +00:00
alc
652afa11cf Synchronize access to the per process aiocb lists in many of the functions. 2005-06-03 05:27:20 +00:00
alc
685bbca37b In aio_waitcomplete() correct two cases of using an aiocb after freeing it. 2005-06-02 23:14:38 +00:00
alc
09a2a99469 Synchronize access to aio_freeproc with a mutex. Eliminate related spl
calls.

Reduce the scope of Giant in aio_daemon().
2005-05-30 22:26:34 +00:00
alc
0a10c2b5cd Use the proc mtx to prevent simultaneous changes to p_aioinfo. 2005-05-30 19:33:33 +00:00
alc
3ecc8d1129 Eliminate unnecessary calls to wakeup(); no one sleeps on &aio_freeproc.
Eliminate an unused flag, AIOP_SCHED; it's cleared but never set.
2005-05-30 18:02:00 +00:00
alc
f570134192 Eliminate aio_activeproc; it's unused. 2005-05-30 05:25:10 +00:00
alc
404d37a14d Eliminate aio_bufjobs; it's unused. 2005-05-29 21:29:15 +00:00
jeff
32c015f463 - Acquire Giant in AIO's iodone routine. VFS will no longer do it for us
soon.

Sponsored by:	Isilon Systems, Inc.
2005-04-30 11:27:31 +00:00
jmg
d241e1d02f fix aio+kq... I've been running ambrisko's test program for much longer
w/o problems than I was before...  This simply brings back the knote_delete
as knlist_delete which will also drop the knote's, instead of just clearing
the list and seeing _ONESHOT...

Fix a race where if a note was _INFLUX and _DETACHED, it could end up being
modified... whoopse..

MFC after:	1 week
Prodded by:	ambrisko and dwhite
2005-03-18 01:11:39 +00:00
phk
9fbd4a503d Make a SYSCTL_NODE static 2005-02-10 12:23:29 +00:00
imp
20280f1431 /* -> /*- for copyright notices, minor format tweaks as necessary 2005-01-06 23:35:40 +00:00
phk
1e4caea88c Remove buf->b_dev field. 2004-11-04 07:59:57 +00:00
phk
86cc21c765 Give dev_strategy() an explict cdev argument in preparation for removing
buf->b-dev.

Put a bio between the buf passed to dev_strategy() and the device driver
strategy routine in order to not clobber fields in the buf.

Assert copyright on vfs_bio.c and update copyright message to canonical
text.  There is no legal difference between John Dysons two-clause
abbreviated BSD license and the canonical text.
2004-10-29 07:16:37 +00:00
phk
c66aa10c8e Put the I/O block size in bufobj->bo_bsize.
We keep si_bsize_phys around for now as that is the simplest way to pull
the number out of disk device drivers in devfs_open().  The correct solution
would be to do an ioctl(DIOCGSECTORSIZE), but the point is probably mooth
when filesystems sit on GEOM, so don't bother for now.
2004-10-26 07:39:12 +00:00
alfred
a72e384f52 cover soreadable and sowriteable with the corresponding socketbuffer locks. 2004-10-01 05:54:06 +00:00
phk
1d992e18ec Eliminate DEV_STRATEGY() macro: call dev_strategy() directly.
Make dev_strategy() handle errors and departing devices properly.
2004-09-23 14:45:04 +00:00
rwatson
fd3f91ddf3 Tag AIO as requiring Giant over the network stack using
NET_NEEDS_GIANT().

RELENG_5 candidate.
2004-09-03 03:19:14 +00:00
jmg
bc1805c6e8 Add locking to the kqueue subsystem. This also makes the kqueue subsystem
a more complete subsystem, and removes the knowlege of how things are
implemented from the drivers.  Include locking around filter ops, so a
module like aio will know when not to be unloaded if there are outstanding
knotes using it's filter ops.

Currently, it uses the MTX_DUPOK even though it is not always safe to
aquire duplicate locks.  Witness currently doesn't support the ability
to discover if a dup lock is ok (in some cases).

Reviewed by:	green, rwatson (both earlier versions)
2004-08-15 06:24:42 +00:00
jmg
bea28d4a04 clean up whitespace... 2004-08-13 17:43:53 +00:00
alc
8a38bc6b2c - Use atomic ops for updating the vmspace's refcnt and exitingcnt.
- Push down Giant into shmexit().  (Giant is acquired only if the vmspace
   contains shm segments.)
 - Eliminate the acquisition of Giant from proc_rwmem().
 - Reduce the scope of Giant in exit1(), uncovering the destruction of the
   address space.
2004-07-27 03:53:41 +00:00
rwatson
855c4bb01f Merge additional socket buffer locking from rwatson_netperf:
- Lock down low hanging fruit use of sb_flags with socket buffer
  lock.

- Lock down low hanging fruit use of so_state with socket lock.

- Lock down low hanging fruit use of so_options.

- Lock down low-hanging fruit use of sb_lowwat and sb_hiwat with
  socket buffer lock.

- Annotate situations in which we unlock the socket lock and then
  grab the receive socket buffer lock, which are currently actually
  the same lock.  Depending on how we want to play our cards, we
  may want to coallesce these lock uses to reduce overhead.

- Convert a if()->panic() into a KASSERT relating to so_state in
  soaccept().

- Remove a number of splnet()/splx() references.

More complex merging of socket and socket buffer locking to
follow.
2004-06-17 22:48:11 +00:00
phk
30a7ac8468 Add missing #include <sys/module.h> 2004-05-30 20:34:58 +00:00
peter
bd5efd4600 Make the process_exit eventhandler run without Giant. Add Giant hooks
in the two consumers that need it.. processes using AIO and netncp.
Update docs.  Say that process_exec is called with Giant, but not to
depend on it.  All our consumers can handle it without Giant.
2004-03-14 02:06:28 +00:00
phk
d04b779c2d Send B_PHYS out to pasture, it no longer serves any function. 2003-11-15 09:28:09 +00:00
jmg
abe50d83e6 don't allow reading from files that haven't been open'd for reading. 2003-10-24 21:07:53 +00:00
simokawa
aeab60718e We need to initialize bp->b_offset and bp->b_iooffset
becuase bp->b_blkno is ignored now.
2003-10-21 13:18:19 +00:00
simokawa
c286d7e22f Fix asynchronous physio breakage introduced in rev 1.163.
We cannnot use bp->b_caller2 because DEV_STRATEGY will overwrite it.
2003-09-10 15:48:51 +00:00
phk
c81c59299b Add a f_vnode field to struct file.
Several of the subtypes have an associated vnode which is used for
stuff like the f*() functions.

By giving the vnode a speparate field, a number of checks for the specific
subtype can be replaced simply with a check for f_vnode != NULL, and
we can later free f_data up to subtype specific use.

At this point in time, f_data still points to the vnode, so any code I
might have overlooked will still work.
2003-06-22 08:41:43 +00:00
phk
3b3b9689c1 Get rid of the b_spc specialty field in struct buf by using an already
available caller private field.
2003-06-16 07:18:39 +00:00
obrien
3b8fff9e4c Use __FBSDID(). 2003-06-11 00:56:59 +00:00
kan
9468fdaf14 Deprecate machine/limits.h in favor of new sys/limits.h.
Change all in-tree consumers to include <sys/limits.h>

Discussed on:	standards@
Partially submitted by: Craig Rodrigues <rodrigc@attbi.com>
2003-04-29 13:36:06 +00:00
jhb
e1dd224437 - kthread's don't have p_textvp set to anything, so replace code that
dealt with that possibility with a KASSERT().
- No need to set P_SYSTEM, kthread_create() does that for us.
2003-04-17 22:37:48 +00:00
alc
663bf88111 Don't reinitialize fields that are already initialized by getpbuf(). 2003-04-05 23:02:58 +00:00
alc
3c03fd9f54 o Remove useracc() calls from aio_qphysio(); they are redundant
given the checks performed by vmapbuf().

Reviewed by:	tegge
2003-04-04 06:26:28 +00:00
jhb
98a481610a Replace the at_fork, at_exec, and at_exit functions with the slightly more
flexible process_fork, process_exec, and process_exit eventhandlers.  This
reduces code duplication and also means that I don't have to go duplicate
the eventhandler locking three more times for each of at_fork, at_exec, and
at_exit.

Reviewed by:	phk, jake, almost complete silence on arch@
2003-03-24 21:15:35 +00:00
imp
cf874b345d Back out M_* changes, per decision of the TRB.
Approved by: trb
2003-02-19 05:47:46 +00:00
alfred
bf8e8a6e8f Remove M_TRYWAIT/M_WAITOK/M_WAIT. Callers should use 0.
Merge M_NOWAIT/M_DONTWAIT into a single flag M_NOWAIT.
2003-01-21 08:56:16 +00:00
dillon
e7be7a0432 Close the remaining user address mapping races for physical
I/O, CAM, and AIO.  Still TODO: streamline useracc() checks.

Reviewed by:	alc, tegge
MFC after:	7 days
2003-01-20 17:46:48 +00:00
alfred
71eb9beb94 style(9) fixes, mostly add parens around return arguments. 2003-01-13 15:06:05 +00:00
dillon
ccd5574cc6 Bow to the whining masses and change a union back into void *. Retain
removal of unnecessary casts and throw in some minor cleanups to see if
anyone complains, just for the hell of it.
2003-01-13 00:33:17 +00:00
tjr
8207259917 Allowing nent < 0 in aio_suspend() and lio_listio() is just asking for
trouble. Return EINVAL instead.
2003-01-12 09:40:23 +00:00
tjr
ab252ec5bd Remove "XXX undocumented" comment from lio_listio(). 2003-01-12 09:33:16 +00:00
dillon
ddf9ef103e Change struct file f_data to un_data, a union of the correct struct
pointer types, and remove a huge number of casts from code using it.

Change struct xfile xf_data to xun_data (ABI is still compatible).

If we need to add a #define for f_data and xf_data we can, but I don't
think it will be necessary.  There are no operational changes in this
commit.
2003-01-12 01:37:13 +00:00
phk
00ede7aab1 Remove unused second argument from DEV_STRATEGY(). 2003-01-03 05:57:35 +00:00
alfred
8c99fb48c7 Lock filedesc while performing a range check on the file descriptor.
Reviewed by: alc
2002-12-27 08:39:42 +00:00
alfred
404161b0eb Rework the sysconf(3) interaction with aio:
sysconf.c:
  Use 'break' rather than 'goto yesno' in sysconf.c so that we report a '0'
  return value from the kernel sysctl.

vfs_aio.c:
  Make aio reset its configuration parameters to -1 after unloading
  instead of 0.

posix4_mib.c:
  Initialize the aio configuration parameters to -1
  to indicate that it is not loaded.
  Add a facility (p31b_iscfg()) to determine if a posix4 facility has been
  initialized to avoid having to re-order the SYSINITs.
  Use p31b_iscfg() to determine if aio has had a chance to run yet which
  is likely if it is compiled into the kernel and avoid spamming its
  values.
  Introduce a macro P31B_VALID() instead of doing the same comparison over
  and over.

posix4.h:
  Prototype p31b_iscfg().
2002-11-17 04:15:34 +00:00
alfred
8ef1ab287a Export the values for _SC_AIO_MAX and _SC_AIO_PRIO_DELTA_MAX via the p1003b
sysctl interface.
2002-11-16 06:38:07 +00:00
alfred
312b33b9d0 Call 'p31b_setcfg(CTL_P1003_1B_AIO_LISTIO_MAX, AIO_LISTIO_MAX)'
when AIO is initialized so that sysconf() gives correct results.

Reported by: Craig Rodrigues <rodrigc@attbi.com>
2002-11-16 04:22:55 +00:00
rwatson
987979669b Do a bit more work in the aio code to simulate the credential environment
of the original AIO request: save and restore the active thread credential
as well as using the file credential, since MAC (and some other bits of
the system) rely on the thread credential instead of/as well as the
file credential.  In brief: cache td->td_ucred when the AIO operation
is queued, temporarily set and restore the kernel thread credential,
and release the credential when done.  Similar to ktrace credential
management.

Reviewed by:	alc
Approved by:	re
Obtained from:	TrustedBSD Project
Sponsored by:	DARPA, Network Associates Laboratories
2002-11-07 20:46:37 +00:00
wollman
7e9d4df21f Change the way support for asynchronous I/O is indicated to applications
to conform to 1003.1-2001.  Make it possible for applications to actually
tell whether or not asynchronous I/O is supported.

Since FreeBSD's aio implementation works on all descriptor types, don't
call down into file or vnode ops when [f]pathconf() is asked about
_PC_ASYNC_IO; this avoids the need for every file and vnode op to know about
it.
2002-10-27 18:07:41 +00:00
jhb
e7e57ceb22 fdfree() clears p_fd for us, no need to do it again. 2002-10-18 17:44:39 +00:00
alc
d7c3f24729 Eliminate the unnecessary clearing of flag bits that are already clear
in lio_listio(2).
2002-10-14 01:21:37 +00:00
scottl
3a150bca9c Some kernel threads try to do significant work, and the default KSTACK_PAGES
doesn't give them enough stack to do much before blowing away the pcb.
This adds MI and MD code to allow the allocation of an alternate kstack
who's size can be speficied when calling kthread_create.  Passing the
value 0 prevents the alternate kstack from being created.  Note that the
ia64 MD code is missing for now, and PowerPC was only partially written
due to the pmap.c being incomplete there.
Though this patch does not modify anything to make use of the alternate
kstack, acpi and usb are good candidates.

Reviewed by:	jake, peter, jhb
2002-10-02 07:44:29 +00:00
archie
7a233d4c9f Replace (ab)uses of "NULL" where "0" is really meant. 2002-08-22 21:24:01 +00:00
alc
126bca5e15 o Remove the AIOCBLIST_ASYNCFREE flag and related code. It's never set.
Submitted by:	Romer Gil <rgil@cs.rice.edu>
2002-08-22 08:50:15 +00:00
alc
eb7be59921 o Make a correction to the last change: In aio_cancel(2) return AIO_ALLDONE
instead of EINVAL if p->p_aioinfo is NULL.
2002-08-11 19:04:17 +00:00
alc
e22d8b7829 o In aio_cancel(2), make sure that p->p_aioinfo isn't NULL before
dereferencing it.

Submitted by:	saureen <sshah@apple.com>
2002-08-11 04:09:14 +00:00
alc
a7174d2f86 Set the ident field of the struct kevent that is registered by _aio_aqueue()
to the address of the user's aiocb rather than the kernel's aiocb.  (In other
words, prior to this change, the ident field returned by kevent(2) on
completion of an AIO was effectively garbage.)

Submitted by:	Romer Gil <rgil@cs.rice.edu>
2002-08-06 19:01:08 +00:00
alc
98877a3b30 o The introduction of kevent() broke lio_listio(): _aio_aqueue() thought
that LIO_READ and LIO_WRITE were requests for kevent()-based
   notification of completion.  Modify _aio_aqueue() to recognize LIO_READ
   and LIO_WRITE.

Notes: (1) The patch provided by the PR perpetuates a second bug in this
code, a direct access to user-space memory.  This change fixes that bug
as well. (2) This change is to code that implements a deprecated interface.
It should probably be removed after an MFC.

PR:		kern/39556
2002-08-05 19:14:27 +00:00
tanimura
e6fa9b9e92 Back out my lats commit of locking down a socket, it conflicts with hsu's work.
Requested by:	hsu
2002-05-31 11:52:35 +00:00
alc
afb615dae0 o Remove some unnecessary casting from and add some necessary casting to
aio_suspend() and lio_listio().

Submitted by:	bde
2002-05-25 18:39:42 +00:00
peter
c952c3ce19 Fix warnings. Also, removed an unused variable that I found that was just
initialized and never used afterwards.
2002-05-24 06:06:18 +00:00
tanimura
92d8381dd5 Lock down a socket, milestone 1.
o Add a mutex (sb_mtx) to struct sockbuf. This protects the data in a
  socket buffer. The mutex in the receive buffer also protects the data
  in struct socket.

o Determine the lock strategy for each members in struct socket.

o Lock down the following members:

  - so_count
  - so_options
  - so_linger
  - so_state

o Remove *_locked() socket APIs.  Make the following socket APIs
  touching the members above now require a locked socket:

 - sodisconnect()
 - soisconnected()
 - soisconnecting()
 - soisdisconnected()
 - soisdisconnecting()
 - sofree()
 - soref()
 - sorele()
 - sorwakeup()
 - sotryfree()
 - sowakeup()
 - sowwakeup()

Reviewed by:	alfred
2002-05-20 05:41:09 +00:00
tanimura
101b936bbc As malloc(9) and free(9) are now Giant-free, remove the Giant lock
across malloc(9) and free(9) of a pgrp or a session.
2002-05-03 07:46:59 +00:00
tanimura
e2acd5cecf Push down Giant for setpgid(), setsid() and aio_daemon(). Giant protects only
malloc(9) and free(9).
2002-04-20 12:02:52 +00:00
jhb
dba04cd736 Lock proctree_lock instead of pgrpsess_lock. 2002-04-16 17:11:34 +00:00
alc
7e3107d0af o Use aiocblist::fd_file in the AIO threads rather than recomputing
the file * from the calling process's descriptor table.
 o Eliminate sharing of the calling process's descriptor table
   with the AIO threads.
2002-04-14 03:04:19 +00:00
alc
548fecffbc Restructure aio_return() to eliminate duplicated code and facilitate Giant
push down.
2002-04-08 04:57:56 +00:00
alc
bfb320784e Reduce the duplication of code for error handling in _aio_aqueue(). 2002-04-07 07:17:59 +00:00
alc
2f8880db13 Change jobref and *ijoblist from int to long in order to avoid
a catastrophe after the 2^32nd AIO operation on 64-bit architectures.
2002-04-07 01:28:34 +00:00
alc
db11618136 o aio_process needn't fhold()/fdrop() the fp now that _aio_aqueue() and
aio_free_entry() do this.
 o Remove two unnecessary/unused variables from aio_process() and one field
   from aiocblist.
2002-04-04 02:13:20 +00:00
alc
6985f3b63c Keep the reference to the file acquired in _aio_aqueue() until the operation
completes.  The reference is released in aio_free_entry().

Submitted by:	tegge
2002-03-31 20:17:56 +00:00
bde
05400f476f Added used include of <sys/sx.h>. Don't depend on namespace pollution in
<sys/file.h> or <sys/socketvar.h>.
2002-03-25 21:52:04 +00:00