Merge ^/head r318380 through r318559.

Remove register keyword from sys/ and ANSIfy prototypes

A long long time ago the register keyword told the compiler to store
the corresponding variable in a CPU register, but it is not relevant
for

Remove register keyword from sys/ and ANSIfy prototypes

A long long time ago the register keyword told the compiler to store
the corresponding variable in a CPU register, but it is not relevant
for any compiler used in the FreeBSD world today.

ANSIfy related prototypes while here.

Reviewed by: cem, jhb
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D10193

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Merge ^/head r305687 through r305890.

Renumber license clauses in sys/kern to avoid skipping #3

Merge ^/head r296007 through r296368.

MFH

Sponsored by: The FreeBSD Foundation

Implement process-shared locks support for libthr.so.3, without
breaking the ABI. Special value is stored in the lock pointer to
indicate shared lock, and offline page in the shared memory is
alloca

Implement process-shared locks support for libthr.so.3, without
breaking the ABI. Special value is stored in the lock pointer to
indicate shared lock, and offline page in the shared memory is
allocated to store the actual lock.

Reviewed by: vangyzen (previous version)
Discussed with: deischen, emaste, jhb, rwatson,
Martin Simmons <martin@lispworks.com>
Tested by: pho
Sponsored by: The FreeBSD Foundation

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MFH r289384-r293170

Sponsored by: The FreeBSD Foundation

Mfh r292839

Fold lim_shared into lim_copy to mute a -Wunused compiler warning from
clang when the kernel is compiled without INVARIANTS

Differential Revision: https://reviews.freebsd.org/D4683
Reviewed by: kib,

Fold lim_shared into lim_copy to mute a -Wunused compiler warning from
clang when the kernel is compiled without INVARIANTS

Differential Revision: https://reviews.freebsd.org/D4683
Reviewed by: kib, jhb
MFC after: 1 week
Sponsored by: EMC / Isilon Storage Division

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Catch up with head (r291075).

Speed up rctl operation with large rulesets, by holding the lock
during iteration instead of relocking it for each traversed rule.

Reviewed by: mjg@
MFC after: 1 month
Sponsored by: The FreeBSD Foun

Speed up rctl operation with large rulesets, by holding the lock
during iteration instead of relocking it for each traversed rule.

Reviewed by: mjg@
MFC after: 1 month
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D4110

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Merge from head

Catch up with head, primarily for the 1.14.4.0 firmware.

Merge ^/head r285341 through r285792.

Get rid of lim_update_thread and cred_update_thread.

Their primary use was in thread_cow_update to free up old resources.
Freeing had to be done with proc lock held and _cow_ funcs already knew
how

Get rid of lim_update_thread and cred_update_thread.

Their primary use was in thread_cow_update to free up old resources.
Freeing had to be done with proc lock held and _cow_ funcs already knew
how to free old structs.

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Merge ^/head r284737 through r285152.

rlimit: deduplicate code in chg* functions

Catch up with HEAD (r280229-r284686).

Merge ^/head r284188 through r284643.

Merge from head

Implement lockless resource limits.

Use the same scheme implemented to manage credentials.

Code needing to look at process's credentials (as opposed to thred's) is
provided with *_proc variants of

Implement lockless resource limits.

Use the same scheme implemented to manage credentials.

Code needing to look at process's credentials (as opposed to thred's) is
provided with *_proc variants of relevant functions.

Places which possibly had to take the proc lock anyway still use the proc
pointer to access limits.

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Merge sync of head

Merge from head

MFH: r280643-r281852

Sponsored by: The FreeBSD Foundation