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markj 25e41e0131 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
..
_bitset.h
…
_bus_dma.h
…
_callout.h
Revert for r277213:
2015-01-22 11:12:42 +00:00
_cpuset.h
Bump the default size of cpuset_t masks in userland from 128 bits to 256.
2014-08-20 16:05:15 +00:00
_ffcounter.h
…
_iovec.h
…
_kstack_cache.h
…
_lock.h
…
_lockmgr.h
…
_mutex.h
…
_null.h
…
_pctrie.h
…
_pthreadtypes.h
…
_rmlock.h
…
_rwlock.h
Drop the 3rd clause from all 3 clause BSD licenses where I am the sole
2014-02-05 18:13:27 +00:00
_semaphore.h
…
_sigset.h
…
_sockaddr_storage.h
…
_stack.h
…
_stdint.h
…
_sx.h
…
_task.h
Revert r256587.
2013-10-18 11:25:08 +00:00
_termios.h
…
_timespec.h
…
_timeval.h
…
_types.h
Change the type of blksize_t from uint32_t to a POSIX compliant int32_t
2015-01-04 15:26:02 +00:00
_umtx.h
The current POSIX semaphore implementation stores the _has_waiters flag
2014-10-24 20:02:44 +00:00
_unrhdr.h
Move the definition of the struct unrhdr into a separate header file,
2013-08-30 07:37:45 +00:00
aac_ioctl.h
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acct.h
…
acl.h
…
agpio.h
…
aio.h
…
alq.h
…
apm.h
…
assym.h
…
ata.h
Add defines for various FIRST PARTY DMA SEND subcommands.
2014-10-22 01:35:30 +00:00
bio.h
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bitset.h
Use __builtin_popcountl() instead of __builtin_popcount().
2015-02-09 21:39:18 +00:00
bitstring.h
…
blist.h
…
boot.h
howto_names: unify declaration
2014-03-11 10:13:06 +00:00
buf_ring.h
Plug memory ordering holes in buf_ring_enqueue. For at least some
2014-10-30 16:26:17 +00:00
buf.h
- In vnode_pager_generic_getpages() use different free counters for
2015-03-06 14:15:30 +00:00
bufobj.h
The vinactive() call in vgonel() may start writes for the dirty pages,
2014-12-13 16:02:37 +00:00
bus_dma.h
Update NetBSD Foundation copyrights to 2-clause BSD
2014-03-18 01:40:25 +00:00
bus.h
Add a new device control utility for new-bus devices called devctl. This
2015-02-06 16:09:01 +00:00
busdma_bufalloc.h
…
callout.h
This fixes two conditions that can incur when migration
2015-02-09 19:19:44 +00:00
capability.h
Fix a comment in capability.h: it got renamed to capsicum.h, not
2014-03-16 21:05:00 +00:00
caprights.h
Change the cap_rights_t type from uint64_t to a structure that we can extend
2013-09-05 00:09:56 +00:00
capsicum.h
Add futimens and utimensat system calls.
2015-01-23 21:07:08 +00:00
cdefs.h
Mark typedefs for manually implementing _Static_assert() as unused, so
2015-02-04 20:55:21 +00:00
cdio.h
…
cdrio.h
…
cfictl.h
…
chio.h
…
clock.h
…
condvar.h
…
conf.h
Remove the d_thread_t compatibility shim provided in 5.0 to handle the
2015-01-29 19:55:33 +00:00
cons.h
Prefer vt(4) for UEFI boot
2014-07-02 13:24:21 +00:00
consio.h
vt(4): Add PIO_VFONT_DEFAULT ioctl to restore the default builtin font
2014-10-23 12:38:05 +00:00
copyright.h
Add the ability to print a vendor copyright in dmesg.
2015-02-09 23:04:30 +00:00
counter.h
- While we are spreading the counter(9) across network stack, more userland
2013-10-15 10:05:37 +00:00
cpu.h
Add support to get the cpu ID from its device driver in a generic way.
2015-02-19 12:47:48 +00:00
cpuctl.h
Restore the ABI of the cpuctl(4) ioctl request CPUCTL_CPUID, use
2014-06-20 13:13:38 +00:00
cpuset.h
Use __builtin_popcnt() to implement a BIT_COUNT() operation for bitsets and
2015-02-09 21:03:23 +00:00
ctype.h
…
dataacq.h
…
devicestat.h
MFprojects/camlock r254905:
2013-10-16 09:12:40 +00:00
digiio.h
…
dir.h
…
dirent.h
…
disk.h
Teach CTL to ask GEOM devices about BIO_DELETE support.
2015-02-13 13:26:23 +00:00
disklabel.h
Remove old ioctl use and support, once and for all.
2015-01-06 05:28:37 +00:00
diskmbr.h
Add MBR EFI partition type definition
2015-01-09 19:37:12 +00:00
diskpc98.h
…
dkstat.h
…
dnv.h
Move libnv into the kernel and hook it into the kernel build
2015-03-01 00:34:27 +00:00
domain.h
Finish r274118: remove useless fields from struct domain.
2014-11-06 14:39:04 +00:00
dtrace_bsd.h
Restore the trap type argument to the DTrace trap hook, removed in r268600.
2014-12-23 15:38:19 +00:00
dvdio.h
…
efi.h
Remove ia64.
2014-07-07 00:27:09 +00:00
elf32.h
Update ELF headers to include additional defines
2015-01-02 15:36:29 +00:00
elf64.h
Update ELF headers to include additional defines
2015-01-02 15:36:29 +00:00
elf_common.h
Update the ELFOSABI_* constants.
2015-03-06 16:43:54 +00:00
elf_generic.h
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elf.h
…
endian.h
…
errno.h
…
eui64.h
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event.h
prevent doing filter ops locking for staticly compiled filter ops...
2014-11-16 01:18:41 +00:00
eventhandler.h
hook userland threads suspend + resume into acpi suspend code
2015-01-27 17:33:18 +00:00
eventvar.h
Add a resource limit for the total number of kqueues available to the
2013-10-21 16:44:53 +00:00
exec.h
Update the comments in exec.h with help from jilles.
2014-08-08 22:30:41 +00:00
extattr.h
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fail.h
…
fbio.h
vt(4): Add support to "downgrade" from eg. vt_fb to vt_vga
2015-03-01 12:54:22 +00:00
fcntl.h
fcntl.h: Make visible various POSIX.1-2008 features.
2014-04-17 21:29:22 +00:00
fdcio.h
- Cleanups pc98 code.
2014-09-28 11:32:46 +00:00
file.h
filedesc: simplify fget_unlocked & friends
2015-02-17 23:54:06 +00:00
filedesc.h
filedesc: simplify fget_unlocked & friends
2015-02-17 23:54:06 +00:00
filio.h
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firmware.h
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fnv_hash.h
Remove ia64.
2014-07-07 00:27:09 +00:00
gmon.h
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gpio.h
Add a new ioctl to allow the setting of GPIO pin names.
2015-03-08 00:47:50 +00:00
gpt.h
After EFI support was added to the installer, it needed to allow boot
2014-07-04 15:55:32 +00:00
gzio.h
Reimplement support for userland core dump compression using a new interface
2015-03-09 03:50:53 +00:00
hash.h
Add a complete implementation of MurmurHash3. Tweak both implementations
2014-10-18 22:15:11 +00:00
hhook.h
For vendors like Juniper, extensibility for sockets is important. A
2014-08-18 23:45:40 +00:00
iconv.h
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imgact_aout.h
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imgact_binmisc.h
sys/kern/imgact_binmisc.c -- free the right pointer mask vs magic
2014-04-08 22:12:01 +00:00
imgact_elf.h
Improve support for XSAVE with debuggers.
2014-11-21 20:53:17 +00:00
imgact.h
Allow multiple image activators to run on the same execution by changing
2014-09-04 21:31:25 +00:00
inflate.h
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interrupt.h
Migrate ie->ie_assign_cpu and associated code to use an int for CPU rather
2014-09-17 17:33:22 +00:00
ioccom.h
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ioctl_compat.h
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ioctl.h
…
iov_schema.h
Add infrastructure for exporting config schema from PF drivers
2015-03-01 00:40:42 +00:00
iov.h
Pass SR-IOV configuration to kernel using an nvlist
2015-03-01 00:40:57 +00:00
ipc.h
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ipmi.h
…
jail.h
Allow the kern.osrelease and kern.osreldate sysctl values to be set in a
2015-02-27 16:28:55 +00:00
joystick.h
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kbio.h
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kdb.h
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kenv.h
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kernel.h
Spell raccdt in a more conventional way in a comment.
2014-05-06 10:53:51 +00:00
kerneldump.h
Factor out duplicated code from dumpsys() on each architecture into generic
2015-01-07 01:01:39 +00:00
khelp.h
For vendors like Juniper, extensibility for sockets is important. A
2014-08-18 23:45:40 +00:00
kobj.h
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ksem.h
Add a new fo_fill_kinfo fileops method to add type-specific information to
2014-09-22 16:20:47 +00:00
ksyms.h
…
kthread.h
…
ktr_class.h
give others fair warning that _SPARE2 isn't just cxgb, but used by large
2015-03-02 20:05:16 +00:00
ktr.h
Right now LOCK_DEBUG is enabled if KTR is on.
2013-12-02 22:34:47 +00:00
ktrace.h
Change the cap_rights_t type from uint64_t to a structure that we can extend
2013-09-05 00:09:56 +00:00
libkern.h
Add some new modes to OpenCrypto. These modes are AES-ICM (can be used
2014-12-12 19:56:36 +00:00
limits.h
…
link_aout.h
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link_elf.h
Add rtld private interface for dso to detect dynamic loading
2015-01-03 18:09:53 +00:00
linker_set.h
Add support for empty data sets. Data set begin and end pointers
2014-07-02 08:49:06 +00:00
linker.h
The current limit of 100k for the linker hints file is getting a bit
2014-11-29 17:29:30 +00:00
lock_profile.h
…
lock.h
Add _NEW flag to mtx(9), sx(9), rmlock(9) and rwlock(9).
2014-12-13 21:00:10 +00:00
lockf.h
…
lockmgr.h
Fix two issues with lockmgr(9) LK_CAN_SHARE() test, which determines
2014-11-02 13:10:31 +00:00
lockstat.h
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loginclass.h
…
mac.h
…
malloc.h
Pull in r267961 and r267973 again. Fix for issues reported will follow.
2014-06-28 03:56:17 +00:00
mbpool.h
All mbuf external free functions never fail, so let them be void.
2014-07-11 13:58:48 +00:00
mbuf.h
A lot of current code in network stack expects mbufs not having
2015-02-23 18:57:09 +00:00
mchain.h
…
md4.h
…
md5.h
…
mdioctl.h
Add "null" backend to mdconfig(8). This does exactly what the name
2013-12-04 07:38:23 +00:00
memdesc.h
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memrange.h
…
mman.h
Retire the unimplemented MAP_RENAME and MAP_NORESERVE flags to mmap(2).
2014-10-18 12:28:51 +00:00
module_khelp.h
…
module.h
Reserve and ignore the a new module metadata type MDT_PNP_INFO for
2015-01-15 00:46:30 +00:00
mount.h
Add functions syncer_suspend() and syncer_resume(), which are supposed
2014-12-08 16:48:57 +00:00
mouse.h
sys/mouse.h: Move members introduced in r255153 to end of struct synapticshw
2013-09-02 19:49:18 +00:00
mpt_ioctl.h
…
mqueue.h
…
msg.h
…
msgbuf.h
…
mtio.h
Significant upgrades to sa(4) and mt(1).
2015-02-23 21:59:30 +00:00
mutex.h
Add _NEW flag to mtx(9), sx(9), rmlock(9) and rwlock(9).
2014-12-13 21:00:10 +00:00
namei.h
Change the cap_rights_t type from uint64_t to a structure that we can extend
2013-09-05 00:09:56 +00:00
nlist_aout.h
…
nv_impl.h
Move libnv into the kernel and hook it into the kernel build
2015-03-01 00:34:27 +00:00
nv.h
Move libnv into the kernel and hook it into the kernel build
2015-03-01 00:34:27 +00:00
nvlist_impl.h
Move libnv into the kernel and hook it into the kernel build
2015-03-01 00:34:27 +00:00
nvpair_impl.h
Move libnv into the kernel and hook it into the kernel build
2015-03-01 00:34:27 +00:00
osd.h
…
param.h
Add PPS support to USB serial drivers.
2015-03-07 18:25:58 +00:00
pciio.h
MFH@260988.
2014-01-21 20:48:02 +00:00
pcpu.h
Add zpcpu_get_cpu() that converts base pointer of UMA_ZPCPU_ZONE
2014-02-10 19:47:14 +00:00
pctrie.h
Mark unused static inline functions defined by the PCTRIE_DEFINE() macro
2013-12-28 21:31:58 +00:00
pioctl.h
…
pipe.h
Ignore the error from pipespace_new when creating a pipe.
2014-05-02 00:52:13 +00:00
pmc.h
Add ARMv7 performance monitoring counters.
2015-01-28 16:08:07 +00:00
pmckern.h
Use __predict_false() on sensitive lock paths as most of the times,
2014-01-07 14:03:42 +00:00
pmclog.h
…
poll.h
Add the ppoll() system call.
2014-11-13 05:26:14 +00:00
posix4.h
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power.h
…
priority.h
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priv.h
Add procctl(2) PROC_TRACE_CTL command to enable or disable debugger
2015-01-18 15:13:11 +00:00
proc.h
Add a WITNESS_WARN check to STOPEVENT() to match the one in _STOPEVENT().
2015-01-31 02:15:16 +00:00
procctl.h
Add procctl(2) PROC_TRACE_CTL command to enable or disable debugger
2015-01-18 15:13:11 +00:00
procdesc.h
Correct typo in comment
2014-07-30 00:28:29 +00:00
procfs.h
…
protosw.h
Merge from projects/sendfile: extend protocols API to support
2014-11-30 13:24:21 +00:00
ptio.h
…
ptrace.h
…
queue.h
Pass macro arguments properly.
2015-02-24 17:36:44 +00:00
racct.h
ifdef RACCT ui_racct_foreach and struct uidinfo's ui_racct
2014-11-23 08:25:44 +00:00
random.h
This is the much-discussed major upgrade to the random(4) device, known to you all as /dev/random.
2014-10-30 21:21:53 +00:00
rangelock.h
…
rctl.h
…
reboot.h
…
refcount.h
Drop the 3rd clause from all 3 clause BSD licenses where I am the sole
2014-02-05 18:13:27 +00:00
regression.h
…
resource.h
Add a resource limit for the total number of kqueues available to the
2013-10-21 16:44:53 +00:00
resourcevar.h
The process spin lock currently has the following distinct uses:
2014-11-26 14:10:00 +00:00
rman.h
Nuke the never-used RF_TIMESHARE feature, reducing the complexity of the
2014-07-16 22:18:19 +00:00
rmlock.h
Add _NEW flag to mtx(9), sx(9), rmlock(9) and rwlock(9).
2014-12-13 21:00:10 +00:00
rtprio.h
…
runq.h
…
rwlock.h
Add _NEW flag to mtx(9), sx(9), rmlock(9) and rwlock(9).
2014-12-13 21:00:10 +00:00
sbuf.h
Unbreak the ABI by reverting r268494 until the compat shims are provided
2014-07-28 07:20:22 +00:00
sched.h
…
sdt.h
Define _DTRACE_VERSION in sdt.h rather than setting it manually. This is
2014-09-02 23:43:06 +00:00
select.h
Drop explicit unsigned from FD_SETSIZE constant
2014-04-28 13:42:41 +00:00
selinfo.h
…
sem.h
Where appropriate, use the modern terms for the one true time base
2014-12-21 05:07:11 +00:00
sema.h
…
seq.h
Fix misplaced read memory barrier in seq.
2014-11-03 13:14:34 +00:00
serial.h
…
sf_buf.h
Add arch-specific macro SFBUF_PHYS_DMAP(), which should translate the
2014-08-20 08:02:38 +00:00
sglist.h
Add sglist_append_bio(9) to append a struct bio's data to a sglist
2014-01-13 04:41:08 +00:00
shm.h
…
sigio.h
…
signal.h
…
signalvar.h
Make SIGSTOP working for sleeps done while waiting for fifo readers or
2015-01-18 15:03:26 +00:00
sleepqueue.h
Reflect the chanages in sleepqueue.h and subr_sleepqueue.c
2014-09-22 19:14:27 +00:00
slicer.h
…
smp.h
Create a cpuset mask for each NUMA domain that is available in the
2015-01-08 15:53:13 +00:00
snoop.h
…
sockbuf.h
sbspace: size of bleft, mleft must match sockbuf fields to avoid
2015-02-13 23:19:35 +00:00
socket.h
Remove SF_KQUEUE code. This code was developed at Netflix, but was not
2014-11-11 20:32:46 +00:00
socketvar.h
In preparation of merging projects/sendfile, transform bare access to
2014-11-12 09:57:15 +00:00
sockio.h
* Add SIOCGI2C driver ioctl used to retrieve i2c info.
2014-08-29 18:02:58 +00:00
sockopt.h
…
sockstate.h
…
soundcard.h
…
stack.h
…
stat.h
Add futimens and utimensat system calls.
2015-01-23 21:07:08 +00:00
statvfs.h
…
stdatomic.h
Rename __wchar_t so it no longer conflicts with __wchar_t from clang 3.4
2014-04-01 14:46:11 +00:00
stddef.h
…
stdint.h
…
sun_disklabel.h
…
sx.h
Add _NEW flag to mtx(9), sx(9), rmlock(9) and rwlock(9).
2014-12-13 21:00:10 +00:00
syscall.h
Run make sysent.
2015-01-23 21:08:24 +00:00
syscall.mk
Run make sysent.
2015-01-23 21:08:24 +00:00
syscallsubr.h
Add futimens and utimensat system calls.
2015-01-23 21:07:08 +00:00
sysctl.h
Add sysctl kern.proc.cwd
2014-11-06 08:12:34 +00:00
sysent.h
Fix up module unload for syscall_module_handler consumers.
2014-11-01 22:36:40 +00:00
syslimits.h
…
syslog.h
…
sysproto.h
Run make sysent.
2015-01-23 21:08:24 +00:00
systm.h
Implement asprintf in libkern
2015-03-01 00:22:16 +00:00
taskqueue.h
Remove taskqueue_start_threads_pinned(); there's noa generic cpuset version of this.
2015-02-25 21:59:03 +00:00
terminal.h
vt(4): Adjust the cursor position after changing the window size
2014-11-01 17:05:15 +00:00
termios.h
…
thr.h
…
tiio.h
…
time.h
Where appropriate, use the modern terms for the one true time base
2014-12-21 05:07:11 +00:00
timeb.h
…
timeet.h
Add support for event timers whose clock frequency can change while running.
2014-04-02 15:56:11 +00:00
timeffc.h
…
timepps.h
Add mutex support to the pps_ioctl() API in the kernel.
2015-03-07 18:23:32 +00:00
timers.h
…
times.h
…
timespec.h
…
timetc.h
On some Intel CPUs with a P-state but not C-state invariant TSC the TSC
2015-01-05 20:44:44 +00:00
timex.h
This is a white-space/comment cleanup commit as a precursor for
2014-09-19 07:44:49 +00:00
tree.h
Provide individual prototype and generate macros for the red-black tree.
2015-01-24 12:43:36 +00:00
tty.h
- Rename tty_makedev() into tty_makedevf() and make it capable
2013-12-18 12:50:43 +00:00
ttycom.h
…
ttydefaults.h
…
ttydevsw.h
…
ttydisc.h
…
ttyhook.h
…
ttyqueue.h
…
turnstile.h
Drop the 3rd clause from all 3 clause BSD licenses where I am the sole
2014-02-05 18:13:27 +00:00
types.h
Change the cap_rights_t type from uint64_t to a structure that we can extend
2013-09-05 00:09:56 +00:00
ucontext.h
Do not qualify the mcontext_t *mcp argument for set_mcontext(9) as
2015-01-31 21:43:46 +00:00
ucred.h
Extend struct ucred with group table.
2014-11-05 02:08:37 +00:00
uio.h
Remove zero-copy sockets code. It only worked for anonymous memory,
2013-09-16 06:25:54 +00:00
umtx.h
The current POSIX semaphore implementation stores the _has_waiters flag
2014-10-24 20:02:44 +00:00
un.h
…
unistd.h
…
unpcb.h
Replace 4.4BSD Lite's unix domain socket backpressure hack with a cleaner
2014-03-13 18:42:12 +00:00
user.h
Add sysctl kern.proc.cwd
2014-11-06 08:12:34 +00:00
utsname.h
…
uuid.h
…
vdso.h
Update the vdso timehands only via tc_windup().
2015-01-20 03:54:30 +00:00
vmem.h
…
vmmeter.h
Rename global cnt to vm_cnt to avoid shadowing.
2014-03-22 10:26:09 +00:00
vnode.h
The VNASSERT in vflush() FORCECLOSE case is trying to panic early to
2015-02-27 16:43:50 +00:00
vtoc.h
…
wait.h
…
watchdog.h
…