Mark Johnston aa14e9b7c9 Reimplement support for userland core dump compression using a new interface ... in kern_gzio.c. The old gzio interface was somewhat inflexible and has not worked properly since r272535: currently, the gzio functions are called with a range lock held on the output vnode, but kern_gzio.c does not pass the IO_RANGELOCKED flag to vn_rdwr() calls, resulting in deadlock when vn_rdwr() attempts to reacquire the range lock. Moreover, the new gzio interface can be used to implement kernel core compression. This change also modifies the kernel configuration options needed to enable userland core dump compression support: gzio is now an option rather than a device, and the COMPRESS_USER_CORES option is removed. Core dump compression is enabled using the kern.compress_user_cores sysctl/tunable. Differential Revision: https://reviews.freebsd.org/D1832 Reviewed by: rpaulo Discussed with: kib		2015-03-09 03:50:53 +00:00
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a.out.5	multiple: Remove 3rd clause from BSD license where approved by the	2014-03-14 03:07:51 +00:00
acct.5	multiple: Remove 3rd clause from BSD license where approved by the	2014-03-14 03:07:51 +00:00
ar.5	Remove trailing whitespace per mdoc lint warning	2012-03-29 05:02:12 +00:00
autofs.5	Update the autofs(5) manual to reflect it first appeared in	2014-09-03 17:15:12 +00:00
bluetooth.device.conf.5	use .Mt to mark up email addresses consistently (part6)	2014-06-23 08:27:27 +00:00
bluetooth.hosts.5	use .Mt to mark up email addresses consistently (part6)	2014-06-23 08:27:27 +00:00
bluetooth.protocols.5	use .Mt to mark up email addresses consistently (part6)	2014-06-23 08:27:27 +00:00
boot.config.5	use .Mt to mark up email addresses consistently (part6)	2014-06-23 08:27:27 +00:00
core.5	Reimplement support for userland core dump compression using a new interface	2015-03-09 03:50:53 +00:00
devfs.5	use .Mt to mark up email addresses consistently (part6)	2014-06-23 08:27:27 +00:00
devfs.conf.5	use .Mt to mark up email addresses consistently (part6)	2014-06-23 08:27:27 +00:00
devfs.rules.5	use .Mt to mark up email addresses consistently (part6)	2014-06-23 08:27:27 +00:00
device.hints.5	General mdoc(7) and typo fixes.	2012-05-12 15:08:22 +00:00
dir.5	multiple: Remove 3rd clause from BSD license where approved by the	2014-03-14 03:07:51 +00:00
disktab.5	multiple: Remove 3rd clause from BSD license where approved by the	2014-03-14 03:07:51 +00:00
elf.5	use .Mt to mark up email addresses consistently (part6)	2014-06-23 08:27:27 +00:00
ethers.5
eui64.5
ext2fs.5	use .Mt to mark up email addresses consistently (part6)	2014-06-23 08:27:27 +00:00
fbtab.5
fdescfs.5	use .Mt to mark up email addresses consistently (part6)	2014-06-23 08:27:27 +00:00
forward.5
freebsd-update.conf.5	use .Mt to mark up email addresses consistently (part6)	2014-06-23 08:27:27 +00:00
fs.5	multiple: Remove 3rd clause from BSD license where approved by the	2014-03-14 03:07:51 +00:00
fstab.5	Correct geli parameter.	2014-04-14 06:59:49 +00:00
group.5	multiple: Remove 3rd clause from BSD license where approved by the	2014-03-14 03:07:51 +00:00
hesiod.conf.5
hosts.5	multiple: Remove 3rd clause from BSD license where approved by the	2014-03-14 03:07:51 +00:00
hosts.equiv.5	multiple: Remove 3rd clause from BSD license where approved by the	2014-03-14 03:07:51 +00:00
hosts.lpd.5	multiple: Remove 3rd clause from BSD license where approved by the	2014-03-14 03:07:51 +00:00
intro.5	multiple: Remove 3rd clause from BSD license where approved by the	2014-03-14 03:07:51 +00:00
libmap.conf.5	use .Mt to mark up email addresses consistently (part6)	2014-06-23 08:27:27 +00:00
link.5	mdoc: drop redundant .Pp and .LP calls	2010-10-08 12:40:16 +00:00
linprocfs.5
linsysfs.5	mdoc: move remaining sections into consistent order	2010-05-13 12:08:11 +00:00
mailer.conf.5	use .Mt to mark up email addresses consistently (part6)	2014-06-23 08:27:27 +00:00
make.conf.5	use .Mt to mark up email addresses consistently (part6)	2014-06-23 08:27:27 +00:00
Makefile	Add MK_AUTOFS knob for building and installing autofs(4), et al	2015-01-26 07:15:49 +00:00
moduli.5	Import an updated version of moduli(5) manual page from OpenBSD.	2012-07-20 01:11:53 +00:00
motd.5
mqueuefs.5	use .Mt to mark up email addresses consistently (part6)	2014-06-23 08:27:27 +00:00
msdosfs.5	use .Mt to mark up email addresses consistently (part6)	2014-06-23 08:27:27 +00:00
nandfs.5	use .Mt to mark up email addresses consistently (part6)	2014-06-23 08:27:27 +00:00
networks.5	multiple: Remove 3rd clause from BSD license where approved by the	2014-03-14 03:07:51 +00:00
nsmb.conf.5	use .Mt to mark up email addresses consistently (part6)	2014-06-23 08:27:27 +00:00
nsswitch.conf.5	use .Mt to mark up email addresses consistently (part6)	2014-06-23 08:27:27 +00:00
nullfs.5	Fix a rendering issue in the nullfs(5) manual page.	2015-02-10 18:49:13 +00:00
passwd.5	Correct the document date for last change.	2014-06-05 01:58:21 +00:00
pbm.5
periodic.conf.5	o Typo: securiy -> security.	2015-02-22 19:42:50 +00:00
pf.conf.5	Various mdoc fixes.	2014-12-21 12:13:49 +00:00
pf.os.5	Various mdoc fixes.	2014-12-21 12:13:49 +00:00
phones.5	multiple: Remove 3rd clause from BSD license where approved by the	2014-03-14 03:07:51 +00:00
portindex.5	use .Mt to mark up email addresses consistently (part6)	2014-06-23 08:27:27 +00:00
portsnap.conf.5	use .Mt to mark up email addresses consistently (part6)	2014-06-23 08:27:27 +00:00
procfs.5	Update description of process status output.	2013-04-22 20:14:57 +00:00
protocols.5	multiple: Remove 3rd clause from BSD license where approved by the	2014-03-14 03:07:51 +00:00
quota.user.5	Remove trailing whitespace per mdoc lint warning	2012-03-29 05:02:12 +00:00
rc.conf.5	Add an rc.d script to invoke iovctl(8) during boot	2015-03-01 00:58:23 +00:00
rctl.conf.5	Add manual page for rctl.conf(5).	2011-04-14 18:37:27 +00:00
regdomain.5	Fix date (1) and SEE ALSO section.	2009-10-28 14:39:27 +00:00
reiserfs.5	use .Mt to mark up email addresses consistently (part6)	2014-06-23 08:27:27 +00:00
remote.5	multiple: Remove 3rd clause from BSD license where approved by the	2014-03-14 03:07:51 +00:00
resolver.5	multiple: Remove 3rd clause from BSD license where approved by the	2014-03-14 03:07:51 +00:00
services.5	Various mdoc fixes.	2014-12-21 12:13:49 +00:00
shells.5	multiple: Remove 3rd clause from BSD license where approved by the	2014-03-14 03:07:51 +00:00
src.conf.5	Regen src.conf(5)	2015-02-04 10:29:53 +00:00
stab.5	multiple: Remove 3rd clause from BSD license where approved by the	2014-03-14 03:07:51 +00:00
style.Makefile.5	mdoc: Remove tabs in non-literal context.	2012-03-26 16:40:45 +00:00
sysctl.conf.5
tmpfs.5	use .Mt to mark up email addresses consistently (part6)	2014-06-23 08:27:27 +00:00