src-test2/sys/dev/random, branch release/5.2.0_cvsFreeBSD source treehttps://cgit-dev.freebsd.org/src-test2/atom?h=release%2F5.2.0_cvs2004-01-10T05:53:29ZThis commit was manufactured by cvs2svn to create tag2004-01-10T05:53:29Zcvs2svncvs2svn@FreeBSD.org2004-01-10T05:53:29Zurn:sha1:58c9ff44c8041f394c663cb9640e9b77fe07bb13
'RELENG_5_2_0_RELEASE'.
This commit was manufactured to restore the state of the 5.2-RELEASE image.
Releases prior to 5.3-RELEASE are omitting the secure/ and crypto/ subdirs.
Fix a major faux pas of mine. I was causing 2 very bad things to2003-11-20T15:35:48ZMark Murraymarkm@FreeBSD.org2003-11-20T15:35:48Zurn:sha1:4e3a7a14d9ee7553f12363ada914d792b7f5e021
happen in interrupt context; 1) sleep locks, and 2) malloc/free
calls.
1) is fixed by using spin locks instead.
2) is fixed by preallocating a FIFO (implemented with a STAILQ)
and using elements from this FIFO instead. This turns out
to be rather fast.
OK'ed by: re (scottl)
Thanks to: peter, jhb, rwatson, jake
Apologies to: *
Overhaul the entropy device:2003-11-17T23:02:21ZMark Murraymarkm@FreeBSD.org2003-11-17T23:02:21Zurn:sha1:0887c8c110da2f060bc422e6942320054bcc755d
o Each source gets its own queue, which is a FIFO, not a ring buffer.
The FIFOs are implemented with the sys/queue.h macros. The separation
is so that a low entropy/high rate source can't swamp the harvester
with low-grade entropy and destroy the reseeds.
o Each FIFO is limited to 256 (set as a macro, so adjustable) events
queueable. Full FIFOs are ignored by the harvester. This is to
prevent memory wastage, and helps to keep the kernel thread CPU
usage within reasonable limits.
o There is no need to break up the event harvesting into ${burst}
sized chunks, so retire that feature.
o Break the device away from its roots with the memory device, and
allow it to get its major number automagically.
- Implement selwakeuppri() which allows raising the priority of a2003-11-09T09:17:26ZSeigo Tanimuratanimura@FreeBSD.org2003-11-09T09:17:26Zurn:sha1:512824f8f7748f7bb54ef900bc8e68a95a3d0f4d
thread being waken up. The thread waken up can run at a priority as
high as after tsleep().
- Replace selwakeup()s with selwakeuppri()s and pass appropriate
priorities.
- Add cv_broadcastpri() which raises the priority of the broadcast
threads. Used by selwakeuppri() if collision occurs.
Not objected in: -arch, -current
Make sure we get all user-written input. This simplifies the2003-11-02T10:55:16ZMark Murraymarkm@FreeBSD.org2003-11-02T10:55:16Zurn:sha1:f757589236b4ab8b41b811afee170c30f6157e70
code considerably.
Submitted by: (forgotten)
[I'll happily acknowledge the submitter if he owns up!]
Use __FBSDID().2003-08-24T17:55:58ZDavid E. O'Brienobrien@FreeBSD.org2003-08-24T17:55:58Zurn:sha1:aad970f1fee9a2a3e5a0f880be9b87c6193b3bd1
Also some minor style cleanups.
Change the sleep identifier to "-" where random normally sleeps.2003-07-02T08:04:57ZPoul-Henning Kampphk@FreeBSD.org2003-07-02T08:04:57Zurn:sha1:68c2a41e6ce830dc667df31a243debfde23682fdGigacommit to improve device-driver source compatibility between2003-03-03T12:15:54ZPoul-Henning Kampphk@FreeBSD.org2003-03-03T12:15:54Zurn:sha1:7ac40f5f59dea6e9ab4869e974bdd4026274e921
branches:
Initialize struct cdevsw using C99 sparse initializtion and remove
all initializations to default values.
This patch is automatically generated and has been tested by compiling
LINT with all the fields in struct cdevsw in reverse order on alpha,
sparc64 and i386.
Approved by: re(scottl)
Back out M_* changes, per decision of the TRB.2003-02-19T05:47:46ZWarner Loshimp@FreeBSD.org2003-02-19T05:47:46Zurn:sha1:a163d034fadcfb4a25ca34a2ba5f491c47b6ff69
Approved by: trb
Remove srandom():2003-02-05T15:56:04ZAndrey A. Chernovache@FreeBSD.org2003-02-05T15:56:04Zurn:sha1:952b6153de6b9223e318948d8c1ae090672a135c
1) It is already called in init_main.c:proc0_post()
2) It is called each time read_random_phony() called, because "initialized"
variable is never set to 1.
Approved by: markm