Sascha Wildner [Thu, 28 Dec 2017 21:36:51 +0000 (22:36 +0100)]
worm(6): Staticize and remove some "return" (crash() never returns).
Sascha Wildner [Thu, 28 Dec 2017 20:53:47 +0000 (21:53 +0100)]
sail(6): pl_main() never returns, so don't pretend it does.
Sascha Wildner [Thu, 28 Dec 2017 20:34:42 +0000 (21:34 +0100)]
pig(6): Staticize.
Sascha Wildner [Thu, 28 Dec 2017 20:24:57 +0000 (21:24 +0100)]
number(6): Staticize and remove a wrong prototype.
Sascha Wildner [Thu, 28 Dec 2017 20:09:26 +0000 (21:09 +0100)]
hangman(6): Move __dead2 to the prototype.
Sascha Wildner [Thu, 28 Dec 2017 19:40:08 +0000 (20:40 +0100)]
arithmetic(6): Staticize.
Sascha Wildner [Thu, 28 Dec 2017 09:54:35 +0000 (10:54 +0100)]
iso639: Add Montenegrin.
See http://www.loc.gov/standards/iso639-2/php/code_changes.php
Eitan Adler [Thu, 28 Dec 2017 08:19:34 +0000 (00:19 -0800)]
Update the pciconf(8) database.
2017-12-20 snapshot from https://pci-ids.ucw.cz/v2.2/pci.ids
zrj [Wed, 27 Dec 2017 16:10:40 +0000 (18:10 +0200)]
libc/nmalloc: Handle size_t overflows in malloc().
Similar to
e9586122ca8be1e743aa9cd2f9622dfe2f434ece.
zrj [Wed, 27 Dec 2017 06:31:35 +0000 (08:31 +0200)]
kerne: Move vfs.pbuf_{kva,mem,raw}_count sysctls to vm node.
The vm.pbud_kva_count, vm.pbud_mem_count and vm.pbud_raw_count
matches other sysctls in sys/vm/.
No userland usage was detected in base and dports.
Eitan Adler [Wed, 27 Dec 2017 13:07:25 +0000 (05:07 -0800)]
Fix several speelling errors
Reviewed by: swildner, zrj
zrj [Wed, 27 Dec 2017 06:28:33 +0000 (08:28 +0200)]
kernel: Remove 3 no longer used sysctls in vfs_bio.c
Sascha Wildner [Tue, 26 Dec 2017 13:04:58 +0000 (14:04 +0100)]
passwd.1/security.7: Some kerberos removal cleanup.
Sepherosa Ziehau [Tue, 26 Dec 2017 04:28:39 +0000 (12:28 +0800)]
socket: Use fast close if SO_LINGER and linger==0.
It is widely used to reset TCP connection by userland application.
Sascha Wildner [Tue, 26 Dec 2017 12:15:19 +0000 (13:15 +0100)]
Makefile.inc1: Adjust an obsolete comment and fix trailing whitespace.
Submitted-by: zrj
zrj [Tue, 26 Dec 2017 09:23:49 +0000 (11:23 +0200)]
ls(1): Add -_ option to include nanotime in ls -l.
Very useful when debugging Makefile races in rules with
vfs.timestamp_precision=1 set.
Yes, ls -l_ seems strage, but we are running out of letters and
FreeBSD already has the "-," flag in their ls(1).
zrj [Tue, 26 Dec 2017 09:22:04 +0000 (11:22 +0200)]
ls(1): Add -D option to set date-time format in ls -l.
Taken-from: FreeBSD
zrj [Tue, 26 Dec 2017 09:18:49 +0000 (11:18 +0200)]
ls(1): Sort flags by order in usage() and manpage.
Add missing 'S' in SYNOPSIS.
While there, move out trailing space separator handling to caller.
zrj [Mon, 25 Dec 2017 13:31:29 +0000 (15:31 +0200)]
ls(1): Minor cleanup.
No functional change.
zrj [Mon, 25 Dec 2017 12:47:52 +0000 (14:47 +0200)]
libc/stdtime: Use style(9) comments in strftime.c
Sascha Wildner [Mon, 25 Dec 2017 10:35:58 +0000 (11:35 +0100)]
Cleanup usr.sbin's Makefile a bit.
Sascha Wildner [Mon, 25 Dec 2017 01:48:05 +0000 (02:48 +0100)]
Remove obsolete comment from libexec's Makefile.
zrj [Sun, 24 Dec 2017 18:54:51 +0000 (20:54 +0200)]
fstyp(8): Don't hardcode UFS1 magic.
Suggested-by: swildner
Eitan Adler [Sun, 24 Dec 2017 18:34:06 +0000 (10:34 -0800)]
splitpatch: massage to function under python3
zrj [Sun, 24 Dec 2017 17:06:11 +0000 (19:06 +0200)]
.gitattributes: Use C language rules in git diff driver.
Solves a very annoying issue when goto labels are mistaken for function name.
Enable only on stuff we care: *.c and *.h. Remember, we had our fun with eof.
Approved-by: swildner
zrj [Sun, 24 Dec 2017 10:01:04 +0000 (12:01 +0200)]
fstyp(8): Remove direct dep on sys/boot/ headers.
Use the kernel headers with local additions to understand ufs2.
zrj [Sat, 23 Dec 2017 18:14:44 +0000 (20:14 +0200)]
boot: Remove unused loader.rc
We use dloader.rc and certainly do not have a loader.4th.
The loader.rc is not put into Makefile_upgrade.inc because we have not
detected it on any of setups and ficl removal was done back in 2010 in
116b7e3c174090f2c3e2f98e4d71f482b50700db
Sascha Wildner [Sun, 24 Dec 2017 12:47:27 +0000 (13:47 +0100)]
i386 removal, part 67/x: Remove last traces of I386_BUS_SPACE_* macros.
Discussed-with: sephe, zrj
Sascha Wildner [Sun, 24 Dec 2017 12:41:07 +0000 (13:41 +0100)]
kernel/sis: Fix some missed x86_64 porting.
Similar to what was done in FreeBSD.
Sepherosa Ziehau [Sun, 24 Dec 2017 05:04:15 +0000 (13:04 +0800)]
ip: Set ip_porthash_trycount based on the # of netisrs.
This helps on the machine w/ relative large # of netisrs. It cuts
> 40% IPIs (160K/s -> 93K/s), and increases the connect rate a bit
(602K/s -> 618K/s).
zrj [Sat, 23 Dec 2017 08:29:47 +0000 (10:29 +0200)]
fflush(3): Return success on a read-only stream.
Loosen up the requirements for opened streams. It is needed to support c++
runtime lib after ext/basic_file_stdio.c s/this->sync()/fflush()/ change.
It likely needed for libc++ too.
Adjust the manpage for behaviour change and only set _w to 0 when stream is
not currently reading in fpurge(4) to avoid failures in fflush(4).
Taken-from: FreeBSD
zrj [Mon, 18 Dec 2017 14:06:34 +0000 (15:06 +0100)]
<sys/types.h>: Remove <machine/stdarg.h> and adjust some headers.
Userland utilities should not use __va_* definitions and kernel already has
the <machine/stdarg.h> in <systm.h>.
Submitted-by: swildner
Sepherosa Ziehau [Sat, 23 Dec 2017 00:03:42 +0000 (08:03 +0800)]
net: Increase max stage packet count to 16.
This increase IP forwarding rate by 200Kpps ~ 300Kpps. Normal
forwarding reaches 11.3Mpps, while fastforwarding is at 14.2Mpps
now.
Setting this to 8 does not give as much improvement as setting
this to 16. While setting this to 24 gives no observable
improvement compared with setting this to 16.
Sascha Wildner [Thu, 21 Dec 2017 21:10:09 +0000 (22:10 +0100)]
i386 removal, part 66/x: Remove SND_PCM_64 as an explicit kernel option.
It only made sense as an option on i386. On x86_64 (or better, if long
is 64 bits wide) it is the default, per sys/dev/sound/pcm/pcm.h.
zrj [Thu, 21 Dec 2017 12:40:49 +0000 (14:40 +0200)]
morse(6): Avoid -Wshadow warning with gcc47.
morse.c:465:8: warning: declaration of 'isblank' shadows a global declaration [-Wshadow]
In file included from morse.c:43:0:
/usr/include/ctype.h:211:5: warning: shadowed declaration is here [-Wshadow]
zrj [Thu, 21 Dec 2017 10:33:49 +0000 (12:33 +0200)]
morse(6): Add decoding functionality for dot-dash code.
Our -d was already taken so use -r option for "reverse" mode.
Usage examples through command line ("--" for safety) and pipe:
_# morse -r -- .... .- -.-. -.- .. -. --.
HACKING
_# cat <<EOF | morse -r
.---
-...
---
-..
--..
EOF
JBODZ
Also it woks as most inefficient way to capitalize words too:
_# morse -s meow | morse -r
MEOW
Pointed-by: tuxillo
Decoding-shamelessly-stolen-from: OpenBSD
Sascha Wildner [Thu, 21 Dec 2017 09:30:44 +0000 (10:30 +0100)]
kernel/de: Use I/O mapped access on x86_64 too.
Seems we missed this in our x86_64 porting.
Approved-by: sephe
Tested-on: Hyper-V
Sepherosa Ziehau [Wed, 20 Dec 2017 05:28:35 +0000 (13:28 +0800)]
inpcb: Change how TCP local ephemeral port is selected.
The goal should be reducing the chance of connection forwarding.
However, ports in a given portinfo is too sparse to achieve this
goal. With the help of randomized local port initial value, the
tentative local port can be incremented by 1 each time, so that
the chance of keeping the connection on the current cpu increases.
This change reduces IPI rate significantly (200K/s -> 160K/s), and
the connection establish rate is increased from 590Kconn/s to
600Kconn/s.
Sascha Wildner [Wed, 20 Dec 2017 06:53:33 +0000 (07:53 +0100)]
<sys/disklabel32.h>: Add comment that it is used in sys/boot (i386 code).
Sascha Wildner [Wed, 20 Dec 2017 06:16:20 +0000 (07:16 +0100)]
libkern/stack_protector: Add comment that it is used in dloader (i386 code).
zrj [Tue, 19 Dec 2017 17:46:42 +0000 (19:46 +0200)]
kernel: Remove some references to i386.
While there, adjust some outdated paths in comments and some minor cleanup.
zrj [Tue, 19 Dec 2017 17:45:11 +0000 (19:45 +0200)]
i386 removal, part 65/x: Remove some leftovers in kernel.
zrj [Tue, 19 Dec 2017 16:35:22 +0000 (18:35 +0200)]
i386 removal, part 64/x: Remove some leftovers in asr(4).
zrj [Tue, 19 Dec 2017 16:27:54 +0000 (18:27 +0200)]
kernel/pc64: Mark cpu_type as hardcoded.
We currently mark all x86_64 cpus as CPU_CLAWHAMMER.
zrj [Tue, 19 Dec 2017 16:15:10 +0000 (18:15 +0200)]
i386 removal, part 63/x: Remove some leftovers in segments.h
Last users were removed in
8c2a9b77413a2154aa54084381f6703dd5446fa4
zrj [Tue, 19 Dec 2017 15:59:05 +0000 (17:59 +0200)]
kernel/pc64: Adjust some references to already removed i386.
While there, perform some whitespace fixes.
No functional change.
Sascha Wildner [Wed, 20 Dec 2017 04:59:44 +0000 (05:59 +0100)]
fsck_msdosfs(8): Use __printflike.
Sascha Wildner [Wed, 20 Dec 2017 04:55:50 +0000 (05:55 +0100)]
routed(8): Clean up a bit.
* Use __printflike and __unused.
* Remove sccsid[] etc.
Sascha Wildner [Wed, 20 Dec 2017 03:33:04 +0000 (04:33 +0100)]
Add __attribute__((__noreturn__)) to various function prototypes in sbin/.
This general cleanup is useful in various ways. It helps the compiler
optimize better and it also helps later GCCs detect better when to give
-Wimplicit-fallthrough warnings and when not.
Found-with: -Wsuggest-attribute=noreturn
Sascha Wildner [Tue, 19 Dec 2017 18:51:17 +0000 (19:51 +0100)]
libc/sysconf: Add _SC_LEVEL1_DCACHE_LINESIZE.
nginx can make use of it (see http://hg.nginx.org/nginx/rev/
057adb2a9d23).
Requested-by: sephe
zrj [Tue, 19 Dec 2017 15:26:44 +0000 (17:26 +0200)]
kernel/pc64: Rename i386_protection_init().
No functional change.
zrj [Tue, 19 Dec 2017 15:25:48 +0000 (17:25 +0200)]
apply(1): Add const attributes.
Sepherosa Ziehau [Tue, 19 Dec 2017 05:00:51 +0000 (13:00 +0800)]
tcp: Stringent assertion for pru_connect.
Eitan Adler [Tue, 19 Dec 2017 06:03:02 +0000 (22:03 -0800)]
gettytab: Add 3wire and std as terminal types/classes.
These are similar to
the existing terminal types/classes that have the baudrate suffix,
but differ in that no baudrate is set/defined.
Obtained-from: FreeBSD (r262955)
zrj [Sun, 17 Dec 2017 15:54:01 +0000 (17:54 +0200)]
libc/nmalloc: Handle size_t overflows in posix_memalign().
Some algorithms/programs try to heuristically deduce alignment rules.
Instead of confusing them with minimal allocations for size == (size_t)-7 and
friends at different alignment values, just return ENOMEM since POSIX does not
explictly specify how alignment overflows should behave. Programs should keep
track of pointers they try to allocate (including size == 0 case too).
zrj [Sun, 17 Dec 2017 15:47:30 +0000 (17:47 +0200)]
libc/nmalloc: Whistespace cleanup.
No functional change.
Matthew Dillon [Mon, 18 Dec 2017 05:45:34 +0000 (21:45 -0800)]
kernel - Relax requirements for sysctl operations on longs
* Relax the requirements for sysctl operations on longs. Allow the
case where userland is reading the sysctl variable as an integer
instead of a long.
* Allows us to promote various vm.stats.vm_* fields that must now be
longs in order to support > 8TB of ram as well as avoid internal
calculation overflows.
* Fixes an issue where chrome issues this sysctl as an int:
sysctlbyname("vm.stats.vm.v_page_count", &pages, &size, NULL, 0);
And fails to check the return value / error code, resulting in
a garbage value for 'pages' which chrome then uses to size the
browser's memory restrains. This in turn was causing chrome
to give up multiple tabs thinking it had run out of memory when,
in fact, there is plenty of memory available.
* Generally speaking, I've wanted to have this sort of backwards
compatibility for a while now. Userland shouldn't get errors
accesing integral sysctl values simply because it uses an integer
of a different size than the sysctl.
zrj [Wed, 13 Dec 2017 07:39:00 +0000 (09:39 +0200)]
md5(1): Add support for sha512.
zrj [Wed, 13 Dec 2017 07:04:08 +0000 (09:04 +0200)]
md5(1): Minor cleanup.
* add static and const attributes;
* use RUSAGE_SELF;
* fix some whitespace errors.
No functional change.
Sascha Wildner [Sun, 17 Dec 2017 13:42:03 +0000 (14:42 +0100)]
boot/efi: Remove our old efi include files.
The remaining local header is eficonsctl.h which I will deal with later.
Sascha Wildner [Sun, 17 Dec 2017 13:41:22 +0000 (14:41 +0100)]
boot/efi: Port most of our efi boot code to the EDK II headers.
Sascha Wildner [Sun, 17 Dec 2017 13:40:41 +0000 (14:40 +0100)]
boot/efi: Bring in a bunch of additional TianoCore EDK II headers.
Taken from the MdePkg of the UDK2017 branch of the
git://github.com/tianocore/edk2 repository.
All I modified was killing CRs using 'tr -d "\015"'.
This is a work in progress.
Sepherosa Ziehau [Sun, 17 Dec 2017 03:36:49 +0000 (11:36 +0800)]
igb.4: Sort chip names.
Sepherosa Ziehau [Sun, 17 Dec 2017 03:33:04 +0000 (11:33 +0800)]
ix.4: Sort chip names.
Sascha Wildner [Sun, 17 Dec 2017 09:39:55 +0000 (10:39 +0100)]
mount_udf(8): Staticize
Sascha Wildner [Sun, 17 Dec 2017 09:26:31 +0000 (10:26 +0100)]
dumpfs(8): Staticize
Sascha Wildner [Sun, 17 Dec 2017 09:11:02 +0000 (10:11 +0100)]
dmesg(8): Staticize
Sascha Wildner [Sat, 16 Dec 2017 21:53:56 +0000 (22:53 +0100)]
devfsctl(8): syntax_error() never returns, so change it to 'void'.
While here, fix indent a bit and add a copyright to devfsctl.h.
Sepherosa Ziehau [Sat, 2 Dec 2017 17:43:05 +0000 (01:43 +0800)]
igb: Sync with Intel's igb 2.5.3
- Enable RX packets dropping, if flow control is disabled.
- Clear bad data at chip initialization time.
Tested-by: Tim Darby <t timdarby net> (i211)
Thomas Nikolajsen <thomas nikolajsen mail dk> (i210)
Sascha Wildner [Sat, 16 Dec 2017 10:39:05 +0000 (11:39 +0100)]
Remove /boot/efiboot.img via 'make upgrade'.
This is needed in our ISOs only to allow booting in EFI mode from
CD-ROM. In the installed system it is not needed anymore, so it
can be removed.
Eitan Adler [Fri, 15 Dec 2017 03:38:21 +0000 (19:38 -0800)]
bsd-family-tree: add NetBSD 7.0.2; Add recent DragonFly
Also changes exact location of NetBSD 7.0.1
Gives some breathing room for adding new releases
Obtained-from: NetBSD (partially)
Sascha Wildner [Wed, 13 Dec 2017 14:08:59 +0000 (15:08 +0100)]
Sync our gcc5 manual pages with gcc-5.4.0
Sascha Wildner [Wed, 13 Dec 2017 12:27:41 +0000 (13:27 +0100)]
Remove <sys/ioccom.h> inclusion from a number of files.
<sys/ioccom.h> should only be included from header files that define
ioctls.
Matthew Dillon [Tue, 12 Dec 2017 22:45:04 +0000 (14:45 -0800)]
tmpfs - Fix arbitrary maximum file size limitation
* tmpfs's maxfilesize was limited to the original tmpfs mount
storage limit, prior to argument overrides. In addition,
the -f argument override would not increase the maxfilesize
limit beyond the original storage limit anyway.
* Remove this limit calculation entirely. Instead the limit
is based on the storage limit which can be optioned at mount
time.
* Fixes expectations when tmpfs is used to hold just a few (or
even just one) file.
Reported-by: kerma
Sascha Wildner [Tue, 12 Dec 2017 14:03:19 +0000 (15:03 +0100)]
boot/efi: Sync IndustryStandard/Bluetooth.h with UDK2017 branch of EDK II.
Sascha Wildner [Tue, 12 Dec 2017 08:59:07 +0000 (09:59 +0100)]
boot/efi: Bring in two more TianoCore EDK II headers.
Taken from the MdePkg of the UDK2017 branch of the
git://github.com/tianocore/edk2 repository.
All I modified was killing CRs using 'tr -d "\015"'.
This is a work in progress.
Sascha Wildner [Tue, 12 Dec 2017 08:55:37 +0000 (09:55 +0100)]
boot/efi: Remove an unused header.
If we ever need it we'd take it from TianoCore EDK II, i.e.
MdePkg/Include/IndustryStandard/Mbr.h.
Matthew Dillon [Sun, 10 Dec 2017 22:09:03 +0000 (14:09 -0800)]
kernel - Revert part of the contig allocation work
* Revert part of the contig allocation work. Always use the alist
allocation from the DMA reserve first, and revert to scanning the
VM page list only if it fails.
* Fixes performance problems with X.
* What this means, generally, is that we will probably need to rely
directly on the dma reserve for most of our DMA allocation and
freeing just to ensure reasonable performance. Scanning page
lists is a big lose.
Reported-by: mneumann
Sascha Wildner [Sun, 10 Dec 2017 15:56:53 +0000 (16:56 +0100)]
libc: Forgotten adjustment in Versions.def
Reported-by: Aaron LI <aly@aaronly.me>
Sascha Wildner [Sun, 10 Dec 2017 07:15:19 +0000 (08:15 +0100)]
Makefile_upgrade.inc: Add adding_user.8 to the end of the list.
Sascha Wildner [Sun, 10 Dec 2017 07:08:27 +0000 (08:08 +0100)]
libc/termios: Add cfmakesane().
This makes net/bsdrcmds build, in preparation for removing rcp, rlogin,
rlogind, rsh and rshd from base.
Taken-from: FreeBSD
Eitan Adler [Sun, 10 Dec 2017 06:42:19 +0000 (22:42 -0800)]
Update bsd-family-tree
Eitan Adler [Sun, 10 Dec 2017 05:56:27 +0000 (21:56 -0800)]
Remove 'adding_user.8'
Not to be confused with adduser.
Not to be confused with useful information.
Eitan Adler [Sun, 10 Dec 2017 05:09:54 +0000 (21:09 -0800)]
flowers: correct spelling of lily, Camellia
Eitan Adler [Sun, 10 Dec 2017 05:06:41 +0000 (21:06 -0800)]
scsi_modes - bring up to date
Obtained-from: FreeBSD
Eitan Adler [Sun, 10 Dec 2017 05:02:44 +0000 (21:02 -0800)]
ascii: Use standard name for ASCII control codes
Obtained-from: FreeBSD r293281
Sascha Wildner [Sat, 9 Dec 2017 19:16:32 +0000 (20:16 +0100)]
rlogind(8): Staticize and remove unused declarations.
Pierre-Alain TORET [Wed, 29 Nov 2017 09:37:03 +0000 (10:37 +0100)]
Add test to dports-download-check target
Signed-off-by: Pierre-Alain TORET <pierre-alain.toret@protonmail.com>
Dragonfly-bug: <https://bugs.dragonflybsd.org/issues/3053>
Sascha Wildner [Sat, 9 Dec 2017 08:09:51 +0000 (09:09 +0100)]
Add __attribute__((__noreturn__)) to various function prototypes in bin/.
This general cleanup is useful in various ways. It helps the compiler
optimize better and it also helps later GCCs detect better when to give
-Wimplicit-fallthrough warnings and when not.
Found-with: -Wsuggest-attribute=noreturn
Sascha Wildner [Sat, 9 Dec 2017 07:57:02 +0000 (08:57 +0100)]
rcp(1): Staticize.
Sascha Wildner [Sat, 9 Dec 2017 07:47:50 +0000 (08:47 +0100)]
pwd(1): Staticize, remove void cast.
Pierre-Alain TORET [Wed, 29 Nov 2017 09:16:42 +0000 (10:16 +0100)]
Add dports-download-check target
Signed-off-by: Pierre-Alain TORET <pierre-alain.toret@protonmail.com>
Dragonfly-bug: <https://bugs.dragonflybsd.org/issues/3053>
François Tigeot [Fri, 8 Dec 2017 21:57:34 +0000 (22:57 +0100)]
drm/radeon: Prevent a crash on load with newer drm code
* The existing drm/radeon code base contained an invalid unlock/lock
sequence in radeon_irq_kms_init() which caused the kernel to crash
during driver initialization with the drm code base from Linux 4.8
* Fixed by replacing the problematic function with its version from
Linux 4.8
Sascha Wildner [Fri, 8 Dec 2017 14:45:08 +0000 (15:45 +0100)]
kernel/evdev: Fix Makefile permission.
Peeter Must [Fri, 8 Dec 2017 12:17:22 +0000 (14:17 +0200)]
kernel - Add evdev support to kbdmux, ukbd and ums
* Allows kbdmux, ukbd and ums to send input events to evdev if kernel
is built with evdev support.
* The sysctl kern.evdev.rcpt_mask determines which drivers are allowed
to send events to evdev. Its default value is 3, meaning that kbdmux
and sysmouse are enabled. Since the latter is not yet supported, one
might want to change the value to 6 (kbdmux and ums) until sysmouse
will be added.
Obtained-from: FreeBSD
Peeter Must [Fri, 8 Dec 2017 10:43:27 +0000 (12:43 +0200)]
kernel - Bring in evdev from FreeBSD
* This is a port of evdev, the generic input event interface, from
FreeBSD. Wikipedia: "Evdev generalizes raw input events from device
drivers and makes them available through character devices in the
/dev/input/ directory."
* It is currently considered experimental since in rare cases it may cause
kernel crash when a device, e.g. usb mouse or keyboard, is detached
while a userland program reading from the corresponding input/eventX
device.
* In order to enable evdev, kernel needs to be rebuilt with 'device evdev'
and 'options EVDEV_SUPPORT'. For debugging, add 'options EVDEV_DEBUG'.
* At present, only ums, kbd and kbdmux can send events to their respective
input/eventX devices. More drivers will be added in due course. The sysctl
kern.evdev.rcpt_mask determines which drivers send events to evdev.
Peeter Must [Fri, 8 Dec 2017 09:53:22 +0000 (11:53 +0200)]
kernel - Fix crash when cdev is destroyed
* If a device is destroyed while a userland program is blocked
in a read() or device ioctl, the underlying node will be deleted.
Returning EIO will prevent kernel from crashing.
* This is a temporary hack until a better solution is found.
Matthew Dillon [Fri, 8 Dec 2017 02:20:49 +0000 (18:20 -0800)]
tmpfs - Correct some timestamp update issues
* write() was updating ACCESSED and MODIFIED when it should only
be updating MODIFIED.
* unlink() (aka rm) was updating CHANGE, ACCESSED, and MODIFIED
which would be visible if a file has multiple links. It should
only update the CHANGE time.
* rmdir() was doing the same thing as UNLINKED. Fixed this too,
but the bug would not be readily visible anyway since directories
cannot be hardlinked. However, fstat() on an open descriptor
would still reveal it.
zrj [Thu, 7 Dec 2017 09:06:17 +0000 (11:06 +0200)]
ddb.4: Document i command addition.
While there, document call and reset commands too.
Matthew Dillon [Thu, 7 Dec 2017 03:09:20 +0000 (19:09 -0800)]
kernel - Improve contiguous DMA memory allocation
* vm_page_alloc_contig() will use vm_page_alloc() for degenerate
requests instead of the free page reserve. This case often
occurs when called from kmem_alloc_attr().
* vm_contig_pg_alloc() will scan the VM page queues first for
unrestricted memory requests, falling back to vm_page_alloc_contig()
if this fails.
vm_contig_pg_alloc() will call vm_page_alloc_contig() first if the
memory request has an address range restriction, falling back to
a VM page queue scan if it fails.
* This should hopefully reduce instances where device drivers probed
prior to e.g. NATA eat up all available low-memory DMA space,
leaving none for NATA (or other drivers) that might need low-memory
DMA space.