mjg 96ff69bdc9 mtx: clean up locking spin mutexes ...

1) shorten the fast path by pushing the lockstat probe to the slow path
2) test for kernel panic only after it turns out we will have to spin,
in particular test only after we know we are not recursing

MFC after:	1 week

2017-10-20 00:30:35 +00:00

..

bus_if.m

"Buses" is the preferred plural of "bus"

2017-01-15 17:54:01 +00:00

capabilities.conf

allow posix_fallocate in capability mode

2017-10-12 15:45:53 +00:00

clock_if.m

…

cpufreq_if.m

…

device_if.m

Import the 'iflib' API library for network drivers. From the author:

2016-05-18 04:35:58 +00:00

genassym.sh

Don't prefix zero with 0x in assym.s.

2017-04-13 15:43:44 +00:00

imgact_aout.c

Revert r323722. A better fix will be committed shortly, as well as

2017-09-28 08:38:24 +00:00

imgact_binmisc.c

tighten buffer bounds in imgact_binmisc_populate_interp

2017-03-21 18:02:14 +00:00

imgact_elf32.c

…

imgact_elf64.c

…

imgact_elf.c

Add AT_HWCAP and AT_EHDRFLAGS on all platforms.

2017-09-14 14:26:55 +00:00

imgact_gzip.c

…

imgact_shell.c

…

inflate.c

Remove register keyword from sys/ and ANSIfy prototypes

2017-05-17 00:34:34 +00:00

init_main.c

Move struct syscall_args syscall arguments parameters container into

2017-06-12 21:03:23 +00:00

init_sysent.c

regen init_sysent.c r324560

2017-10-12 15:48:37 +00:00

kern_acct.c

Commit the 64-bit inode project.

2017-05-23 09:29:05 +00:00

kern_alq.c

…

kern_clock.c

Remove register keyword from sys/ and ANSIfy prototypes

2017-05-17 00:34:34 +00:00

kern_clocksource.c

Remove cpu_deepest_sleep variable.

2017-02-24 16:11:55 +00:00

kern_condvar.c

Introduce SCHEDULER_STOPPED_TD for use when the thread pointer was already read

2017-02-17 06:45:04 +00:00

kern_conf.c

Undo r309891. Konstantin is right in that this condition normally

2016-12-12 19:11:04 +00:00

kern_cons.c

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

2016-09-15 13:16:20 +00:00

kern_context.c

…

kern_cpu.c

Add an EARLY_AP_STARTUP option to start APs earlier during boot.

2016-05-14 18:22:52 +00:00

kern_cpuset.c

Fix size to copyout(9) for cpuset_getid(2).

2017-08-22 20:46:29 +00:00

kern_ctf.c

Fix improper use of "its".

2016-11-08 23:59:41 +00:00

kern_descrip.c

ddb show files: fix up file types and whitespace

2017-06-14 07:46:52 +00:00

kern_dtrace.c

Sprinkle __read_frequently on few obvious places.

2017-09-06 20:33:33 +00:00

kern_dump.c

Move kernel dump offset tracking into MI code.

2017-10-18 15:38:05 +00:00

kern_environment.c

Create wrappers for uint64_t and int64_t for the tunables. While not

2016-04-15 03:09:55 +00:00

kern_et.c

Add labels to sysctls related to clocks.

2016-12-14 12:56:58 +00:00

kern_event.c

Do not cast struct kevent_args or struct freebsd11_kevent_args to

2017-06-29 14:40:33 +00:00

kern_exec.c

execve: avoid one proc lock/unlock trip unless PTRACE_EXEC is set

2017-10-19 00:46:15 +00:00

kern_exit.c

Avoid reusing p_ksi while it is on queue.

2017-03-12 13:58:51 +00:00

kern_fail.c

Avoid open-coding PRI_UNCHANGED.

2017-05-18 18:24:11 +00:00

kern_ffclock.c

kernel: use our nitems() macro when it is available through param.h.

2016-04-19 23:48:27 +00:00

kern_fork.c

If the user tries to set kern.randompid to 1 (which is meaningless), set

2017-09-10 15:01:29 +00:00

kern_gzio.c

…

kern_hhook.c

Get closer to a VIMAGE network stack teardown from top to bottom rather

2016-06-21 13:48:49 +00:00

kern_idle.c

…

kern_intr.c

Extend cpuset_get/setaffinity() APIs

2017-05-03 18:41:08 +00:00

kern_jail.c

Jails: Optionally prevent jailed root from binding to privileged ports

2017-06-06 02:15:00 +00:00

kern_khelp.c

…

kern_kthread.c

Re-schedule signals after kthread exits, since apparently there are

2016-08-10 13:47:12 +00:00

kern_ktr.c

Fix a couple of comment typos

2017-08-15 02:21:02 +00:00

kern_ktrace.c

Ktracing kevent(2) calls with unusual arguments might leads to an

2017-03-12 13:48:24 +00:00

kern_linker.c

sysctl-s in a module should be accessible only when the module is initialized

2017-10-05 12:32:14 +00:00

kern_lock.c

lockmgr: implement fast path

2017-02-12 09:49:44 +00:00

kern_lockf.c

put very expensive sanity checks of advisory locks under DIAGNOSTIC

2017-01-30 15:20:13 +00:00

kern_lockstat.c

Sprinkle __read_frequently on few obvious places.

2017-09-06 20:33:33 +00:00

kern_loginclass.c

…

kern_malloc.c

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

2016-09-15 13:16:20 +00:00

kern_mbuf.c

Improvements to sendfile(2) mbuf free routine.

2017-10-09 21:06:16 +00:00

kern_mib.c

All these files need sys/vmmeter.h, but now they got it implicitly

2017-04-17 17:07:00 +00:00

kern_module.c

…

kern_mtxpool.c

sys/kern: spelling fixes in comments.

2016-04-29 22:15:33 +00:00

kern_mutex.c

mtx: clean up locking spin mutexes

2017-10-20 00:30:35 +00:00

kern_ntptime.c

ANSIfy kern_ntptime.c

2017-01-25 20:22:32 +00:00

kern_numa.c

Remove unneeded include of vm_phys.h.

2017-04-17 16:51:04 +00:00

kern_osd.c

osd(9): Change array pointer to array pointer type from void*

2016-04-26 19:57:35 +00:00

kern_physio.c

Add four new RCTL resources - readbps, readiops, writebps and writeiops,

2016-04-07 04:23:25 +00:00

kern_pmc.c

Cast values to (int) before comparing them to the range of the

2017-02-24 01:39:12 +00:00

kern_poll.c

…

kern_priv.c

…

kern_proc.c

Let stack_create(9) take a malloc flags argument.

2017-10-06 21:52:28 +00:00

kern_procctl.c

reaper: Make REAPER_KILL_SUBTREE actually work.

2016-12-14 22:49:20 +00:00

kern_prot.c

Add security.bsd.see_jail_proc

2017-05-23 16:59:24 +00:00

kern_racct.c

try to fix RACCT_RSS accounting

2017-02-14 13:54:05 +00:00

kern_rangelock.c

…

kern_rctl.c

sys/kern: spelling fixes in comments.

2016-04-29 22:15:33 +00:00

kern_resource.c

Remove register keyword from sys/ and ANSIfy prototypes

2017-05-17 00:34:34 +00:00

kern_rmlock.c

Corrected misspelled versions of rendezvous.

2017-04-09 02:00:03 +00:00

kern_rwlock.c

locks: take the number of readers into account when waiting

2017-10-05 19:18:02 +00:00

kern_sdt.c

…

kern_sema.c

…

kern_sendfile.c

Address two problems with sendfile(..., SF_NOCACHE) and apply one

2017-10-13 16:31:50 +00:00

kern_sharedpage.c

…

kern_shutdown.c

Move kernel dump offset tracking into MI code.

2017-10-18 15:38:05 +00:00

kern_sig.c

Re-evaluate thread' signal mask after ptracestop().

2017-10-16 20:21:51 +00:00

kern_switch.c

Add comments explaining unobvious td_critnest adjustments in

2017-01-22 19:41:42 +00:00

kern_sx.c

locks: take the number of readers into account when waiting

2017-10-05 19:18:02 +00:00

kern_synch.c

- Remove 'struct vmmeter' from 'struct pcpu', leaving only global vmmeter

2017-04-17 17:34:47 +00:00

kern_syscalls.c

…

kern_sysctl.c

sysctl: only take mem lock if oldlen is > 4 * PAGE_SIZE

2017-10-19 01:38:31 +00:00

kern_tc.c

The th_bintime, th_microtime and th_nanotime members of the timehand

2017-10-11 11:03:11 +00:00

kern_thr.c

Defer ptracestop() signals that cannot be delivered immediately

2017-02-20 15:53:16 +00:00

kern_thread.c

Move struct syscall_args syscall arguments parameters container into

2017-06-12 21:03:23 +00:00

kern_time.c

Add clock_nanosleep()

2017-03-19 00:51:12 +00:00

kern_timeout.c

Remove register keyword from sys/ and ANSIfy prototypes

2017-05-17 00:34:34 +00:00

kern_umtx.c

When the RTC is adjusted, reevaluate absolute sleep times based on the RTC

2017-03-14 19:06:44 +00:00

kern_uuid.c

Hint at the intended usage for the "ll" field of struct uuid_private.

2017-06-13 15:37:04 +00:00

kern_xxx.c

Remove register keyword from sys/ and ANSIfy prototypes

2017-05-17 00:34:34 +00:00

ksched.c

…

link_elf_obj.c

Reduce stack usage in link_elf_load_file(), allocating struct nameidata.

2017-03-09 00:45:15 +00:00

link_elf.c

kern: for pointers replace 0 with NULL.

2016-04-15 16:10:11 +00:00

linker_if.m

sys/kern: spelling fixes in comments.

2016-04-29 22:15:33 +00:00

Make.tags.inc

…

Makefile

Don't create pointless backups of generated files in "make sysent".

2016-07-28 21:29:04 +00:00

makesyscalls.sh

Commit the 64-bit inode project.

2017-05-23 09:29:05 +00:00

md4c.c

crypto routines: Hint minimum buffer sizes to the compiler

2016-05-26 19:29:29 +00:00

md5c.c

crypto routines: Hint minimum buffer sizes to the compiler

2016-05-26 19:29:29 +00:00

msi_if.m

Introduce MSI and MSI-X support to intrng. This adds a new msi device

2016-05-16 09:11:40 +00:00

p1003_1b.c

…

pic_if.m

INTRNG: Rework handling with resources. Partially revert r301453.

2016-08-19 10:52:39 +00:00

posix4_mib.c

Make p1003_1b.aio_listio_max a tunable

2017-08-08 16:14:31 +00:00

sched_4bsd.c

Remove register keyword from sys/ and ANSIfy prototypes

2017-05-17 00:34:34 +00:00

sched_ule.c

Don't take Giant for SMP status and cpu topology sysctls.

2017-10-18 22:00:44 +00:00

serdev_if.m

…

stack_protector.c

…

subr_acl_nfs4.c

…

subr_acl_posix1e.c

…

subr_autoconf.c

Add config_intrhook_oneshot(): schedule an intrhook function and unregister

2017-08-13 18:10:24 +00:00

subr_blist.c

The recent change to initialization of blists (r324420) relied on '-1'

2017-10-09 18:19:06 +00:00

subr_bufring.c

…

subr_bus_dma.c

Add CAM/NVMe support for CAM_DATA_SG

2017-08-29 15:29:57 +00:00

subr_bus.c

Add eventhandler notifications for newbus device attach/detach.

2017-10-08 17:33:49 +00:00

subr_busdma_bufalloc.c

…

subr_capability.c

…

subr_clock.c

Add common code to support realtime clocks that store year without century.

2017-07-23 21:28:00 +00:00

subr_counter.c

Zero return value when counter_rate() switches over to next second and

2016-12-13 20:11:45 +00:00

subr_devmap.c

o Replace __riscv__ with __riscv

2017-08-07 14:09:57 +00:00

subr_devstat.c

Add support for managing Shingled Magnetic Recording (SMR) drives.

2016-05-19 14:08:36 +00:00

subr_disk.c

…

subr_dummy_vdso_tc.c

…

subr_eventhandler.c

Restore the ability to deregister an eventhandler from within the callback.

2017-10-08 17:21:16 +00:00

subr_fattime.c

…

subr_firmware.c

Fix improper use of "its".

2016-11-08 23:59:41 +00:00

subr_gtaskqueue.c

Fix "taskqgroup_attach: setaffinity failed: 3" with iflib drivers

2017-10-05 14:43:30 +00:00

subr_hash.c

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

2016-09-15 13:16:20 +00:00

subr_hints.c

…

subr_intr.c

Fix compile error with option DEBUG. This is fallout from some long-ago

2017-08-16 16:51:55 +00:00

subr_kdb.c

…

subr_kobj.c

- Also outside of the KOBJOPLOOKUP macro - which in turn is used by

2017-05-08 21:08:39 +00:00

subr_lock.c

locks: follow up r313386

2017-02-07 16:01:07 +00:00

subr_log.c

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

2016-09-15 13:16:20 +00:00

subr_mchain.c

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

2016-09-15 13:16:20 +00:00

subr_module.c

…

subr_msgbuf.c

sys/kern: spelling fixes in comments.

2016-04-29 22:15:33 +00:00

subr_param.c

Allow sysctl kern.vm_guest to return bhyve when running under bhyve.

2017-06-08 04:02:14 +00:00

subr_pcpu.c

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

2016-09-15 13:16:20 +00:00

subr_pctrie.c

Make the number of children for pctrie node available outside subr_pctrie.c.

2017-07-27 16:40:14 +00:00

subr_power.c

…

subr_prf.c

kvprintf %b enhancements

2017-07-12 07:30:14 +00:00

subr_prof.c

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

2016-09-15 13:16:20 +00:00

subr_rman.c

Add new bus methods for mapping resources.

2016-05-20 17:57:47 +00:00

subr_rtc.c

Add clock_schedule(), a feature that allows realtime clock drivers to

2017-07-31 01:18:21 +00:00

subr_sbuf.c

An off-by-one error exists in sbuf_vprintf()'s use of SBUF_HASROOM() when an

2017-08-18 02:06:28 +00:00

subr_scanf.c

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

2016-09-15 13:16:20 +00:00

subr_sfbuf.c

subr_sfbus.c need sys/proc.h for struct thread definition.

2017-02-07 17:31:24 +00:00

subr_sglist.c

Add sglist_append_sglist().

2017-05-16 23:31:52 +00:00

subr_sleepqueue.c

When showing the sleepqueues from the in-kernel debugger,

2017-10-09 18:33:29 +00:00

subr_smp.c

Don't take Giant for SMP status and cpu topology sysctls.

2017-10-18 22:00:44 +00:00

subr_stack.c

Let stack_create(9) take a malloc flags argument.

2017-10-06 21:52:28 +00:00

subr_syscall.c

Move struct syscall_args syscall arguments parameters container into

2017-06-12 21:03:23 +00:00

subr_taskqueue.c

Add taskqueue_enqueue_timeout_sbt(), because sometimes you want more control

2017-07-31 00:54:50 +00:00

subr_terminal.c

Oops, my fix for bright colors broke bright black some more (in cases

2017-03-27 10:48:28 +00:00

subr_trap.c

- Remove 'struct vmmeter' from 'struct pcpu', leaving only global vmmeter

2017-04-17 17:34:47 +00:00

subr_turnstile.c

Remove unused declaration and update ddb.4

2017-08-24 19:16:25 +00:00

subr_uio.c

Simplify UIO_SYSSPACE and UIO_NOCOPY paths in uiomove

2017-07-06 15:03:54 +00:00

subr_unit.c

Properly reset the fields in clean_unrhdr.

2017-10-16 16:14:50 +00:00

subr_vmem.c

Start annotating global _padalign locks with __exclusive_cache_line

2017-09-06 20:28:18 +00:00

subr_witness.c

ddb(4): Add 'show badstacks' command to show witness badstacks

2017-09-23 17:48:49 +00:00

sys_capability.c

capsicum: perform copyout without the fildesc lock held in sys_cap_ioctls_get

2016-10-21 16:12:23 +00:00

sys_generic.c

Fix NULL pointer dereference and panic with shm file pread/pwrite.

2017-03-10 10:09:44 +00:00

sys_pipe.c

Generate syscall tables and update pipe() implementation after r302094.

2016-06-22 21:18:19 +00:00

sys_procdesc.c

Hide the boottime and bootimebin globals, provide the getboottime(9)

2016-07-27 11:08:59 +00:00

sys_process.c

Log signal number passed to PT_STEP requests in KTR_PTRACE traces.

2017-09-25 20:38:55 +00:00

sys_socket.c

Don't grab SOCK_LOCK for soref() when queuing an AIO request.

2017-08-25 23:10:27 +00:00

syscalls.c

Regen.

2017-06-17 00:58:19 +00:00

syscalls.master

Add abstime kqueue(2) timers and expand struct kevent members.

2017-06-17 00:57:26 +00:00

systrace_args.c

Regen.

2017-06-17 00:58:19 +00:00

sysv_ipc.c

…

sysv_msg.c

Remove register keyword from sys/ and ANSIfy prototypes

2017-05-17 00:34:34 +00:00

sysv_sem.c

sysvsem: check if semu_list has anything on it before grabbing the lock

2017-10-19 00:31:00 +00:00

sysv_shm.c

Audit arguments to System V IPC system calls implementing sempahores,

2017-03-30 22:26:15 +00:00

tty_compat.c

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

2016-09-15 13:16:20 +00:00

tty_info.c

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

2016-09-15 13:16:20 +00:00

tty_inq.c

Check tty_gone() after allocating IO buffers. The tty lock has to be

2017-01-13 16:37:38 +00:00

tty_outq.c

Check tty_gone() after allocating IO buffers. The tty lock has to be

2017-01-13 16:37:38 +00:00

tty_pts.c

Commit the 64-bit inode project.

2017-05-23 09:29:05 +00:00

tty_tty.c

…

tty_ttydisc.c

…

tty.c

Commit the 64-bit inode project.

2017-05-23 09:29:05 +00:00

uipc_accf.c

Listening sockets improvements.

2017-06-08 21:30:34 +00:00

uipc_debug.c

ddb show socket debugging

2017-06-15 04:49:12 +00:00

uipc_domain.c

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

2016-09-15 13:16:20 +00:00

uipc_mbuf2.c

Remove writability requirement for single-mbuf, contiguous-range

2017-01-12 06:38:03 +00:00

uipc_mbuf.c

mbuf(9): unbreak m_fragment()

2017-10-16 21:46:11 +00:00

uipc_mbufhash.c

…

uipc_mqueue.c

Correct sysent flags for dynamically loaded syscalls.

2017-07-14 09:34:44 +00:00

uipc_sem.c

Audit arguments to POSIX message queues, semaphores, and shared memory.

2017-03-31 13:43:00 +00:00

uipc_shm.c

Use vm_page_active() rather than directly accessing the page's queue

2017-10-02 07:30:21 +00:00

uipc_sockbuf.c

Third take on the r319685 and r320480. Actually allow for call soisconnected()

2017-08-24 20:49:19 +00:00

uipc_socket.c

Fix locking in soisconnected().

2017-09-14 18:05:54 +00:00

uipc_syscalls.c

Listening sockets improvements.

2017-06-08 21:30:34 +00:00

uipc_usrreq.c

Hide struct socket and struct unpcb from the userland.

2017-10-02 23:29:56 +00:00

vfs_acl.c

Add system-call argument auditing for ACL-related system calls.

2017-03-30 22:00:58 +00:00

vfs_aio.c

Make p1003_1b.aio_listio_max a tunable

2017-08-08 16:14:31 +00:00

vfs_bio.c

Continuing efforts to provide hardening of FFS, this change adds a

2017-09-22 12:45:15 +00:00

vfs_cache.c

namecache: factor out ~MAKEENTRY lookups from the common path

2017-10-06 23:05:55 +00:00

vfs_cluster.c

Move bogus_page declaration to vm_page.h and initialization to vm_page.c.

2017-01-04 22:27:19 +00:00

vfs_default.c

Only handle _PC_MAX_CANON, _PC_MAX_INPUT, and _PC_VDISABLE for TTY devices.

2017-09-21 23:05:32 +00:00

vfs_export.c

vfs_export_lookup: Fix r324054

2017-10-06 09:02:36 +00:00

vfs_extattr.c

…

vfs_hash.c

Add vfs_hash_ref(9) function, which finds a vnode by the hash value

2016-05-11 06:32:22 +00:00

vfs_init.c

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

2016-09-15 13:16:20 +00:00

vfs_lookup.c

When a Linux program tries to access a /path the kernel tries

2017-10-15 18:53:21 +00:00

vfs_mount.c

remove process and jail directory machinations from dounmount

2017-10-13 09:42:05 +00:00

vfs_mountroot.c

Make root_mount_rel(9) ignore NULL arguments, like it used to before r313351.

2017-09-05 14:32:56 +00:00

vfs_subr.c

Fix a racy VI_DOOMED check in MNT_VNODE_FOREACH_ALL().

2017-10-17 19:41:45 +00:00

vfs_syscalls.c

allow posix_fallocate in capability mode

2017-10-12 15:45:53 +00:00

vfs_vnops.c

Use whole mnt_stat.f_fsid bits for st_dev.

2017-05-27 17:00:30 +00:00

vnode_if.src

For UNIX sockets make vnode point not to the socket, but to the UNIX PCB,

2017-06-02 17:31:25 +00:00