Attilio Rao 7fbfba7bf8 - Handle buffer lock waiters count directly in the buffer cache instead ...

than rely on the lockmgr support [1]:
  * bump the waiters only if the interlock is held
  * let brelvp() return the waiters count
  * rely on brelvp() instead than BUF_LOCKWAITERS() in order to check
    for the waiters number
- Remove a namespace pollution introduced recently with lockmgr.h
  including lock.h by including lock.h directly in the consumers and
  making it mandatory for using lockmgr.
- Modify flags accepted by lockinit():
  * introduce LK_NOPROFILE which disables lock profiling for the
    specified lockmgr
  * introduce LK_QUIET which disables ktr tracing for the specified
    lockmgr [2]
  * disallow LK_SLEEPFAIL and LK_NOWAIT to be passed there so that it
    can only be used on a per-instance basis
- Remove BUF_LOCKWAITERS() and lockwaiters() as they are no longer
  used

This patch breaks KPI so __FreBSD_version will be bumped and manpages
updated by further commits. Additively, 'struct buf' changes results in
a disturbed ABI also.

[2] Really, currently there is no ktr tracing in the lockmgr, but it
will be added soon.

[1] Submitted by:	kib
Tested by:	pho, Andrea Barberio <insomniac at slackware dot it>

2008-03-01 19:47:50 +00:00

..

bus_if.m

o break newbus api: add a new argument of type driver_filter_t to

2007-02-23 12:19:07 +00:00

clock_if.m

…

cpufreq_if.m

…

device_if.m

…

genassym.sh

refactor code so it can run in a chroot without having to have /dev/mounted

2008-01-18 17:02:14 +00:00

imgact_aout.c

VOP_LOCK1() (and so VOP_LOCK()) and VOP_UNLOCK() are only used in

2008-01-13 14:44:15 +00:00

imgact_elf32.c

…

imgact_elf64.c

…

imgact_elf.c

VOP_LOCK1() (and so VOP_LOCK()) and VOP_UNLOCK() are only used in

2008-01-13 14:44:15 +00:00

imgact_gzip.c

VOP_LOCK1() (and so VOP_LOCK()) and VOP_UNLOCK() are only used in

2008-01-13 14:44:15 +00:00

imgact_shell.c

…

inflate.c

…

init_main.c

Don't zero td_runtime when billing thread CPU usage to the process;

2008-01-10 22:11:20 +00:00

init_sysent.c

Regenerate for readlink(2).

2008-02-12 20:11:54 +00:00

kern_acct.c

VOP_LOCK1() (and so VOP_LOCK()) and VOP_UNLOCK() are only used in

2008-01-13 14:44:15 +00:00

kern_alq.c

VOP_LOCK1() (and so VOP_LOCK()) and VOP_UNLOCK() are only used in

2008-01-13 14:44:15 +00:00

kern_clock.c

Add a new 'why' argument to kdb_enter(), and a set of constants to use

2007-12-25 17:52:02 +00:00

kern_condvar.c

Commit 2/14 of sched_lock decomposition.

2007-06-04 23:50:56 +00:00

kern_conf.c

Apply a workaround for the unkillable jail problem where some devices created

2007-12-05 01:22:03 +00:00

kern_context.c

Further system call comment cleanup:

2007-03-05 13:10:58 +00:00

kern_cpu.c

Remove duplicate cpufreq levels, i.e. ones that are within 25 Mhz of each

2008-01-16 01:05:21 +00:00

kern_descrip.c

This patch adds a new ktrace(2) record type, KTR_STRUCT, whose payload

2008-02-23 01:01:49 +00:00

kern_environment.c

Merge first in a series of TrustedBSD MAC Framework KPI changes

2007-10-24 19:04:04 +00:00

kern_event.c

Make ftruncate a 'struct file' operation rather than a vnode operation.

2008-01-07 20:05:19 +00:00

kern_exec.c

VOP_LOCK1() (and so VOP_LOCK()) and VOP_UNLOCK() are only used in

2008-01-13 14:44:15 +00:00

kern_exit.c

Switch from conditionally dropping Giant in exit1() to asserting it is

2008-02-17 15:28:28 +00:00

kern_fork.c

When forking, the new thread deserves a name too. Don't just use the

2007-11-15 02:13:44 +00:00

kern_idle.c

rename the process to 'idle' and 'intr' as per jhb.

2007-10-27 00:52:26 +00:00

kern_intr.c

fix typo in code normally not compiled in.

2007-10-29 20:45:31 +00:00

kern_jail.c

Replace the last susers calls in netinet6/ with privilege checks.

2008-01-24 08:25:59 +00:00

kern_kse.c

Fix build.

2007-11-15 14:16:20 +00:00

kern_kthread.c

Acquire the process mutex and spin locks before calling thread_exit() in

2007-11-15 21:45:17 +00:00

kern_ktr.c

Remove slightly oddly placed suser() call from the KTR/ALQ setup sysctl:

2006-09-09 16:09:01 +00:00

kern_ktrace.c

This patch adds a new ktrace(2) record type, KTR_STRUCT, whose payload

2008-02-23 01:01:49 +00:00

kern_linker.c

VOP_LOCK1() (and so VOP_LOCK()) and VOP_UNLOCK() are only used in

2008-01-13 14:44:15 +00:00

kern_lock.c

- Handle buffer lock waiters count directly in the buffer cache instead

2008-03-01 19:47:50 +00:00

kern_lockf.c

Do not call free() while holding vnode interlock.

2007-08-07 09:04:50 +00:00

kern_malloc.c

Use vm_offset_t for kmembase and kmemlimit rather than char *, avoiding

2007-06-27 13:39:38 +00:00

kern_mbuf.c

Give MEXTADD() another argument to make both void pointers to the

2008-02-01 19:36:27 +00:00

kern_mib.c

Make sysctl_kern_arnd return a random buffer instead of a random long,

2008-02-17 16:44:48 +00:00

kern_module.c

Add an automatic kernel module version dependency to prevent loading

2008-02-13 21:34:06 +00:00

kern_mtxpool.c

Universally adopt most conventional spelling of acquire.

2007-05-27 20:50:23 +00:00

kern_mutex.c

Add KASSERT()'s to catch attempts to recurse on spin mutexes that aren't

2008-02-13 23:39:05 +00:00

kern_ntptime.c

Only require privilege to set the current time adjustment, not in order to

2007-06-14 18:37:58 +00:00

kern_physio.c

…

kern_pmc.c

Kernel and hwpmc(4) support for callchain capture.

2007-12-07 08:20:17 +00:00

kern_poll.c

Remove the now-unused NET_{LOCK,UNLOCK,ASSERT}_GIANT() macros, which

2007-08-06 14:26:03 +00:00

kern_priv.c

Continue kernel privilege cleanup for 7.0: unstaticize suser_enabled and

2007-07-02 14:03:29 +00:00

kern_proc.c

Don't zero td_runtime when billing thread CPU usage to the process;

2008-01-10 22:11:20 +00:00

kern_prot.c

Merge first in a series of TrustedBSD MAC Framework KPI changes

2007-10-24 19:04:04 +00:00

kern_resource.c

Don't zero td_runtime when billing thread CPU usage to the process;

2008-01-10 22:11:20 +00:00

kern_rmlock.c

Expand lock class with the "virtual" function lc_assert which will offer

2007-11-18 14:43:53 +00:00

kern_rwlock.c

- In rw_wunlock_hard prefer to wakeup writers if there are both readers

2008-02-07 06:16:54 +00:00

kern_sema.c

…

kern_shutdown.c

Add a wrapper function that bound checks writes to the dump device.

2008-01-28 19:04:07 +00:00

kern_sig.c

VOP_LOCK1() (and so VOP_LOCK()) and VOP_UNLOCK() are only used in

2008-01-13 14:44:15 +00:00

kern_subr.c

Commit 14/14 of sched_lock decomposition.

2007-06-05 00:00:57 +00:00

kern_switch.c

generally we are interested in what thread did something as

2007-11-14 06:21:24 +00:00

kern_sx.c

- Re-implement lock profiling in such a way that it no longer breaks

2007-12-15 23:13:31 +00:00

kern_synch.c

Don't zero td_runtime when billing thread CPU usage to the process;

2008-01-10 22:11:20 +00:00

kern_syscalls.c

Make system call modules a bit more robust:

2006-08-01 16:32:20 +00:00

kern_sysctl.c

Add sysctl_rename_oid() to support device_set_unit() usage. Otherwise,

2007-11-30 21:29:08 +00:00

kern_tc.c

Fix typo in comment.

2008-02-17 02:46:54 +00:00

kern_thr.c

This time REALLY copy the name from the proc to the thread as a default.

2007-11-15 06:35:26 +00:00

kern_thread.c

give thread0 the tid 100000 and bumpt the others to start at 100001

2007-12-22 04:56:48 +00:00

kern_time.c

Make sure reading td_runtime in critical section since thread may be

2008-01-18 13:00:28 +00:00

kern_timeout.c

Really, no explicit checks against against lock_class_* object should be

2008-02-06 00:04:09 +00:00

kern_umtx.c

Check NULL pointer.

2007-12-17 08:09:37 +00:00

kern_uuid.c

Correct typo.

2007-04-23 12:53:00 +00:00

kern_xxx.c

Further system call comment cleanup:

2007-03-05 13:10:58 +00:00

ksched.c

Commit 14/14 of sched_lock decomposition.

2007-06-05 00:00:57 +00:00

link_elf_obj.c

VOP_LOCK1() (and so VOP_LOCK()) and VOP_UNLOCK() are only used in

2008-01-13 14:44:15 +00:00

link_elf.c

VOP_LOCK1() (and so VOP_LOCK()) and VOP_UNLOCK() are only used in

2008-01-13 14:44:15 +00:00

linker_if.m

Add a function to list symbols in a file and their values at the

2007-11-18 00:23:31 +00:00

Make.tags.inc

Remove netkey directory from cscope/TAGs generation and replace

2007-07-05 08:55:14 +00:00

Makefile

style.Makefile(5)

2007-12-14 21:30:51 +00:00

makesyscalls.sh

Add support for COMPAT6 syscalls.

2007-07-04 22:38:28 +00:00

md4c.c

…

md5c.c

…

p1003_1b.c

generally we are interested in what thread did something as

2007-11-14 06:21:24 +00:00

posix4_mib.c

Fix mispatch of includes list; allows my kernel to build successfully.

2006-11-12 03:34:03 +00:00

sched_4bsd.c

- Re-implement lock profiling in such a way that it no longer breaks

2007-12-15 23:13:31 +00:00

sched_ule.c

- sched_prio() should only adjust tdq_lowpri if the thread is running or on

2008-01-23 03:10:18 +00:00

serdev_if.m

…

subr_acl_posix1e.c

Eliminate now-unused SUSER_ALLOWJAIL arguments to priv_check_cred(); in

2007-06-12 00:12:01 +00:00

subr_autoconf.c

Remove a superfluous line in run_interrupt_driven_config_hooks(),

2008-02-15 21:54:21 +00:00

subr_blist.c

…

subr_bus.c

Add devctl_process_running() so that power management system driver

2008-01-27 16:06:37 +00:00

subr_clist.c

…

subr_clock.c

If clock_ct_to_ts fails to convert time time from the real time clock,

2007-07-23 09:42:32 +00:00

subr_devstat.c

…

subr_disk.c

Add a new I/O request - BIO_FLUSH, which basically tells providers below to

2006-10-31 21:11:21 +00:00

subr_eventhandler.c

…

subr_fattime.c

Better naming of fattime conversion functions, they do convert to timespec

2006-10-24 10:27:23 +00:00

subr_firmware.c

Cleanup and document the implementation of firmware(9) based on

2007-02-15 17:21:31 +00:00

subr_hints.c

…

subr_kdb.c

Add a new 'why' argument to kdb_enter(), and a set of constants to use

2007-12-25 17:52:02 +00:00

subr_kobj.c

…

subr_lock.c

Really, no explicit checks against against lock_class_* object should be

2008-02-06 00:04:09 +00:00

subr_log.c

…

subr_mbpool.c

Add parens around *free in *free++ in mbp_count() so that mbp_count()

2007-05-27 17:38:36 +00:00

subr_mchain.c

…

subr_module.c

…

subr_msgbuf.c

…

subr_param.c

Export maxswzone, maxbcache, maxtsiz, dfldsiz, maxdsiz, dflssiz, maxssiz,

2007-10-16 10:40:53 +00:00

subr_pcpu.c

generally we are interested in what thread did something as

2007-11-14 06:21:24 +00:00

subr_power.c

…

subr_prf.c

Instead of doing comparisons using the pcpu area to see if

2007-03-08 06:44:34 +00:00

subr_prof.c

Commit 14/14 of sched_lock decomposition.

2007-06-05 00:00:57 +00:00

subr_rman.c

Complete removal of restriction about overlaps to rman_manage_region:

2007-04-28 07:37:49 +00:00

subr_rtc.c

Use utc_offset() where applicable, and hide the internals of it

2006-10-02 18:23:37 +00:00

subr_sbuf.c

…

subr_scanf.c

…

subr_sleepqueue.c

Mark sleepqueue chain spin mutexes are recursable since the sleepq code

2008-02-13 23:36:56 +00:00

subr_smp.c

A few whitespace fixes.

2008-01-02 17:09:15 +00:00

subr_stack.c

When a symbol name can't be resolved, return "??" as the name, rather

2007-12-03 14:44:35 +00:00

subr_taskqueue.c

Rename the kthread_xxx (e.g. kthread_create()) calls

2007-10-20 23:23:23 +00:00

subr_trap.c

Kernel and hwpmc(4) support for callchain capture.

2007-12-07 08:20:17 +00:00

subr_turnstile.c

- Add THREAD_LOCKPTR_ASSERT() to assert that the thread's lock points at

2008-02-07 06:55:38 +00:00

subr_unit.c

Since cdev mutex is after system map mutex in global lock order, free()

2007-07-04 06:56:58 +00:00

subr_witness.c

Add a new 'why' argument to kdb_enter(), and a set of constants to use

2007-12-25 17:52:02 +00:00

sys_generic.c

Make ftruncate a 'struct file' operation rather than a vnode operation.

2008-01-07 20:05:19 +00:00

sys_pipe.c

Make ftruncate a 'struct file' operation rather than a vnode operation.

2008-01-07 20:05:19 +00:00

sys_process.c

Use VM_FAULT_DIRTY to fault in pages for write access in

2007-11-08 19:35:36 +00:00

sys_socket.c

Make ftruncate a 'struct file' operation rather than a vnode operation.

2008-01-07 20:05:19 +00:00

syscalls.c

Regenerate for readlink(2).

2008-02-12 20:11:54 +00:00

syscalls.master

Change readlink(2)'s return type and type of the last argument

2008-02-12 20:09:04 +00:00

systrace_args.c

Regenerate for readlink(2).

2008-02-12 20:11:54 +00:00

sysv_ipc.c

Eliminate now-unused SUSER_ALLOWJAIL arguments to priv_check_cred(); in

2007-06-12 00:12:01 +00:00

sysv_msg.c

Merge first in a series of TrustedBSD MAC Framework KPI changes

2007-10-24 19:04:04 +00:00

sysv_sem.c

Merge first in a series of TrustedBSD MAC Framework KPI changes

2007-10-24 19:04:04 +00:00

sysv_shm.c

Make sure we restrict Linux only IPC calls from being executed

2008-02-12 20:55:03 +00:00

tty_compat.c

…

tty_conf.c

…

tty_cons.c

VOP_LOCK1() (and so VOP_LOCK()) and VOP_UNLOCK() are only used in

2008-01-13 14:44:15 +00:00

tty_pts.c

Fix bad function type passed to destroy_dev_sched_cb().

2007-07-05 05:54:47 +00:00

tty_pty.c

In rev. 1.156, the convertion of the minor number to the unit number

2008-01-26 06:09:23 +00:00

tty_subr.c

…

tty_tty.c

Lock Giant and proctree lock around dereferencing p_session->s_ttyvp->v_rdev.

2007-07-03 17:46:37 +00:00

tty.c

Close a race in the kern.ttys sysctl handler that resulted in panics in

2008-01-08 04:53:28 +00:00

uipc_accf.c

…

uipc_cow.c

Give MEXTADD() another argument to make both void pointers to the

2008-02-01 19:36:27 +00:00

uipc_debug.c

Add missing sb_sndptr* fields to db_print_sockbuf().

2008-01-03 15:19:31 +00:00

uipc_domain.c

Remove the now-unused NET_{LOCK,UNLOCK,ASSERT}_GIANT() macros, which

2007-08-06 14:26:03 +00:00

uipc_mbuf2.c

Merge first in a series of TrustedBSD MAC Framework KPI changes

2007-10-24 19:04:04 +00:00

uipc_mbuf.c

Give MEXTADD() another argument to make both void pointers to the

2008-02-01 19:36:27 +00:00

uipc_mqueue.c

VOP_LOCK1() (and so VOP_LOCK()) and VOP_UNLOCK() are only used in

2008-01-13 14:44:15 +00:00

uipc_sem.c

Free MAC label on a POSIX semaphore when the semaphore is freed.

2008-01-07 22:03:19 +00:00

uipc_shm.c

Change shm_dotruncate() so that it correctly handles cached pages that span

2008-02-07 05:55:16 +00:00

uipc_sockbuf.c

Further clean up sorflush:

2008-02-04 12:25:13 +00:00

uipc_socket.c

Further clean up sorflush:

2008-02-04 12:25:13 +00:00

uipc_syscalls.c

After finishing sending file data in sendfile(2), don't forget to send

2008-02-24 00:07:00 +00:00

uipc_usrreq.c

Move unlock of global UNIX domain socket lock slightly lower in

2008-01-18 19:16:03 +00:00

vfs_acl.c

VOP_LOCK1() (and so VOP_LOCK()) and VOP_UNLOCK() are only used in

2008-01-13 14:44:15 +00:00

vfs_aio.c

Use FEATURE() macro to advertise aio availability.

2008-02-01 11:59:14 +00:00

vfs_bio.c

- Handle buffer lock waiters count directly in the buffer cache instead

2008-03-01 19:47:50 +00:00

vfs_cache.c

Axe the 'thread' argument from VOP_ISLOCKED() and lockstatus() as it is

2008-02-25 18:45:57 +00:00

vfs_cluster.c

- Move rusage from being per-process in struct pstats to per-thread in

2007-06-01 01:12:45 +00:00

vfs_default.c

Axe the 'thread' argument from VOP_ISLOCKED() and lockstatus() as it is

2008-02-25 18:45:57 +00:00

vfs_export.c

Move vnode-to-file-handle translation from vfs_vptofh to vop_vptofh method.

2007-02-15 22:08:35 +00:00

vfs_extattr.c

VOP_LOCK1() (and so VOP_LOCK()) and VOP_UNLOCK() are only used in

2008-01-13 14:44:15 +00:00

vfs_hash.c

Make insmntque() externally visibile and allow it to fail (e.g. during

2007-03-13 01:50:27 +00:00

vfs_init.c

Remove VFS_VPTOFH entirely. API is already broken and it is good time to

2007-02-16 17:32:41 +00:00

vfs_lookup.c

Axe the 'thread' argument from VOP_ISLOCKED() and lockstatus() as it is

2008-02-25 18:45:57 +00:00

vfs_mount.c

Undo the damage I did in sys/kern/vfs_mount.c #1.274 and

2008-02-18 20:58:57 +00:00

vfs_subr.c

- Handle buffer lock waiters count directly in the buffer cache instead

2008-03-01 19:47:50 +00:00

vfs_syscalls.c

This patch adds a new ktrace(2) record type, KTR_STRUCT, whose payload

2008-02-23 01:01:49 +00:00

vfs_vnops.c

VOP_LOCK1() (and so VOP_LOCK()) and VOP_UNLOCK() are only used in

2008-01-13 14:44:15 +00:00

vnode_if.src

Do not assert any locks for VOP_PRINT. In particular, do not assert that

2008-02-26 12:16:35 +00:00