attilio ce3b4baf3c Fix some bugs related to adaptive spinning: ...

In the lockmgr support:
- GIANT_RESTORE() is just called when the sleep finishes, so the current
  code can ends up into a giant unlock problem.  Fix it by appropriately
  call GIANT_RESTORE() when needed.  Note that this is not exactly ideal
  because for any interation of the adaptive spinning we drop and restore
  Giant, but the overhead should be not a factor.
- In the lock held in exclusive mode case, after the adaptive spinning is
  brought to completition, we should just retry to acquire the lock
  instead to fallthrough. Fix that.
- Fix a style nit

In the sx support:
- Call GIANT_SAVE() before than looping. This saves some overhead because
  in the current code GIANT_SAVE() is called several times.

Tested by:	Giovanni Trematerra <giovanni dot trematerra at gmail dot com>

2009-09-02 17:33:51 +00:00

..

bus_if.m

Add support for multiple passes of the device tree during the boot-time

2009-06-09 14:26:23 +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

Add sv_flags field to struct sysentvec with intention to provide description

2008-11-22 12:36:15 +00:00

imgact_elf32.c

Use __FBSDID().

2003-06-11 00:56:59 +00:00

imgact_elf64.c

Use __FBSDID().

2003-06-11 00:56:59 +00:00

imgact_elf.c

Make sure FreeBSD binaries without .note.ABI-tag section work

2009-08-30 14:38:17 +00:00

imgact_gzip.c

…

imgact_shell.c

Decontextualize the couplet VOP_GETATTR / VOP_SETATTR as the passed thread

2008-08-28 15:23:18 +00:00

inflate.c

…

init_main.c

Remove the interim vimage containers, struct vimage and struct procg,

2009-07-17 14:48:21 +00:00

init_sysent.c

Regenerate after lpathconf(2) addition.

2009-07-08 15:25:27 +00:00

kern_acct.c

Do not use casts (int *)0 and (struct thread *)0 for the arguments of

2009-06-16 15:13:45 +00:00

kern_alq.c

Add another flags argument to vn_open_cred. Use it to specify that some

2009-06-21 13:41:32 +00:00

kern_clock.c

Mark the clock sysctls as MPSAFE.

2009-05-18 12:03:43 +00:00

kern_condvar.c

Remove unused variables p' and unneeded assignments of rval'.

2009-02-26 13:00:13 +00:00

kern_conf.c

Extend the device pager to support different memory attributes on different

2009-08-28 14:06:55 +00:00

kern_cons.c

Allow multiple console devices per driver without insane code duplication.

2009-08-24 10:53:30 +00:00

kern_context.c

…

kern_cpu.c

Provide a new CPU device driver ivar to report the nominal speed of the

2009-05-31 08:59:15 +00:00

kern_cpuset.c

Remove unnecessary/redundant includes.

2009-06-23 14:39:21 +00:00

kern_ctf.c

Add the CTF source file which gets shared with link_elf.c and link_elf_obj.c.

2008-05-23 03:04:27 +00:00

kern_descrip.c

Replace AUDIT_ARG() with variable argument macros with a set more more

2009-06-27 13:58:44 +00:00

kern_dtrace.c

Remove code that isn't required. It actually breaks the case where KDTRACE_HOOKS

2008-06-16 04:44:29 +00:00

kern_environment.c

Move "options MAC" from opt_mac.h to opt_global.h, as it's now in GENERIC

2009-06-05 14:55:22 +00:00

kern_event.c

- Turn the third (islocked) argument of the knote call into flags parameter.

2009-06-28 21:49:43 +00:00

kern_exec.c

Fix some LORs between vnode locks and filedescriptor table locks.

2009-07-31 13:40:06 +00:00

kern_exit.c

Add a temporary workaround which just lets init die instead of

2009-08-26 21:10:47 +00:00

kern_fail.c

fail(9) support:

2009-05-27 16:36:54 +00:00

kern_fork.c

Reintroduce the r196640, after fixing the problem with my testing.

2009-09-01 11:41:51 +00:00

kern_idle.c

…

kern_intr.c

Improve the handling of cpuset with interrupts.

2009-07-01 17:20:07 +00:00

kern_jail.c

Fix a LOR between allprison_lock and vnode locks by releasing

2009-08-27 16:15:51 +00:00

kern_kthread.c

Reintroduce the r196640, after fixing the problem with my testing.

2009-09-01 11:41:51 +00:00

kern_ktr.c

…

kern_ktrace.c

Move "options MAC" from opt_mac.h to opt_global.h, as it's now in GENERIC

2009-06-05 14:55:22 +00:00

kern_linker.c

Merge the remainder of kern_vimage.c and vimage.h into vnet.c and

2009-08-01 19:26:27 +00:00

kern_lock.c

Fix some bugs related to adaptive spinning:

2009-09-02 17:33:51 +00:00

kern_lockf.c

In lf_iteratelocks_vnode, increment state->ls_threads around iterating

2009-06-25 18:54:56 +00:00

kern_lockstat.c

Add the OpenSolaris dtrace lockstat provider. The lockstat provider

2009-05-26 20:28:22 +00:00

kern_malloc.c

If we're passed garbage in malloc_init(), panic() rather than expecting

2009-06-05 09:16:52 +00:00

kern_mbuf.c

Add support to the virtual memory system for configuring machine-

2009-07-12 23:31:20 +00:00

kern_mib.c

Rename the host-related prison fields to be the same as the host.*

2009-06-13 15:39:12 +00:00

kern_module.c

When the SYSINIT() to load a module invokes the MOD_LOAD event successfully,

2008-12-05 16:47:30 +00:00

kern_mtxpool.c

Fix a number of style issues in the MALLOC / FREE commit. I've tried to

2008-10-23 20:26:15 +00:00

kern_mutex.c

* Change the scope of the ASSERT_ATOMIC_LOAD() from a generic check to

2009-08-17 16:17:21 +00:00

kern_ntptime.c

…

kern_osd.c

Make the rmlock(9) interface a bit more like the rwlock(9) interface:

2009-05-29 10:52:37 +00:00

kern_physio.c

…

kern_pmc.c

Support sparsely numbered CPUs.

2008-09-22 10:37:02 +00:00

kern_poll.c

Rather than fix questionable ifnet list locking in the implementation of

2009-08-15 23:07:43 +00:00

kern_priv.c

Move "options MAC" from opt_mac.h to opt_global.h, as it's now in GENERIC

2009-06-05 14:55:22 +00:00

kern_proc.c

Reintroduce the r196640, after fixing the problem with my testing.

2009-09-01 11:41:51 +00:00

kern_prot.c

Remove the interim vimage containers, struct vimage and struct procg,

2009-07-17 14:48:21 +00:00

kern_resource.c

Implement global and per-uid accounting of the anonymous memory. Add

2009-06-23 20:45:22 +00:00

kern_rmlock.c

Minor style tweak.

2009-05-29 14:25:51 +00:00

kern_rwlock.c

* Change the scope of the ASSERT_ATOMIC_LOAD() from a generic check to

2009-08-17 16:17:21 +00:00

kern_sdt.c

Add kernel support for the Statically Defined Trace provider.

2008-05-18 19:32:36 +00:00

kern_sema.c

…

kern_shutdown.c

* Completely Remove the option STOP_NMI from the kernel. This option

2009-08-13 17:09:45 +00:00

kern_sig.c

Add new msleep(9) flag PBDY that shall be specified together with

2009-07-14 22:52:46 +00:00

kern_subr.c

Constify prime numbers.

2009-08-23 09:55:06 +00:00

kern_switch.c

- Use DPCPU for SCHED_STATS. This is somewhat awkward because the

2009-06-25 01:33:51 +00:00

kern_sx.c

Fix some bugs related to adaptive spinning:

2009-09-02 17:33:51 +00:00

kern_synch.c

Add new msleep(9) flag PBDY that shall be specified together with

2009-07-14 22:52:46 +00:00

kern_syscalls.c

Various style fixes. 7 space indent is just odd.

2008-09-18 20:10:11 +00:00

kern_sysctl.c

Make it possible to change the vnet sysctl variables on jails

2009-08-13 10:26:34 +00:00

kern_tc.c

Remove conditionally compiled time counter statistics; tools like

2009-04-11 22:01:40 +00:00

kern_thr.c

Reintroduce the r196640, after fixing the problem with my testing.

2009-09-01 11:41:51 +00:00

kern_thread.c

Reintroduce the r196640, after fixing the problem with my testing.

2009-09-01 11:41:51 +00:00

kern_time.c

Remove VOP_LEASE and supporting functions. This hasn't been used since

2009-04-10 10:52:19 +00:00

kern_timeout.c

Add explicit static DTrace tracing to the callout mechanism, capturing

2009-01-24 10:22:49 +00:00

kern_umtx.c

Make UMTX_OP_WAIT_UINT actually wait for an unsigned integer on 64-bits

2009-04-13 05:21:17 +00:00

kern_uuid.c

Rework global locks for interface list and index management, correcting

2009-08-23 20:40:19 +00:00

kern_xxx.c

Place hostnames and similar information fully under the prison system.

2009-05-29 21:27:12 +00:00

ksched.c

…

link_elf_obj.c

Add macros VNET_SETNAME and VNET_SYMPREFIX, and expose to userspace if

2009-07-20 07:50:50 +00:00

link_elf.c

Build on Jeff Roberson's linker-set based dynamic per-CPU allocator

2009-07-14 22:48:30 +00:00

linker_if.m

strict kobj signatures: linker_if fixes

2009-06-11 17:05:45 +00:00

Make.tags.inc

Catch up with the disappearance of sys/dev/hfa.

2008-12-01 14:34:42 +00:00

Makefile

…

makesyscalls.sh

Add a new COMPAT7 flag for FreeBSD 7.x compatibility system calls.

2009-06-24 13:36:37 +00:00

md4c.c

…

md5c.c

…

p1003_1b.c

Remove kernel support for M:N threading.

2008-03-12 10:12:01 +00:00

posix4_mib.c

…

sched_4bsd.c

- Use __XSTRING where I want the define to be expanded. This resulted in

2009-01-25 07:35:10 +00:00

sched_ule.c

- Use cpuset_t and the CPU_ macros in place of cpumask_t so that ULE

2009-06-23 22:12:37 +00:00

serdev_if.m

…

stack_protector.c

Fix a chicken-and-egg problem: this files implements SSP support,

2008-06-26 07:52:45 +00:00

subr_acl_nfs4.c

Add part of NFSv4 ACL kernel support code that is required for the upcoming

2009-06-09 19:51:22 +00:00

subr_acl_posix1e.c

Make 'struct acl' larger, as required to support NFSv4 ACLs. Provide

2009-05-22 15:56:43 +00:00

subr_autoconf.c

Prefer ANSI function definitions to K&R ones.

2009-02-03 07:52:07 +00:00

subr_blist.c

Retire the MALLOC and FREE macros. They are an abomination unto style(9).

2008-10-23 15:53:51 +00:00

subr_bufring.c

- bump __FreeBSD version to reflect added buf_ring, memory barriers,

2008-11-22 05:55:56 +00:00

subr_bus.c

Rather than havnig enabled/disabled, implement a max queue depth.

2009-08-25 06:25:59 +00:00

subr_clock.c

Now that all platforms use genclock, shuffle things around slightly

2008-04-22 19:38:30 +00:00

subr_devstat.c

Use NULL in preference to 0 in pointer contexts.

2009-02-03 07:54:42 +00:00

subr_disk.c

Clarify and reimplement the bioq API so that bioq_disksort() has

2009-02-13 11:36:32 +00:00

subr_eventhandler.c

…

subr_fattime.c

…

subr_firmware.c

Use NULL in preference to 0 for pointers.

2009-02-03 07:51:11 +00:00

subr_hints.c

…

subr_kdb.c

* Completely Remove the option STOP_NMI from the kernel. This option

2009-08-13 17:09:45 +00:00

subr_kobj.c

Use NULL in preference to 0 in pointer contexts.

2009-02-03 07:54:42 +00:00

subr_lock.c

- Implement a new mechanism for resetting lock profiling. We now

2009-03-15 06:41:47 +00:00

subr_log.c

In keeping with style(9)'s recommendations on macros, use a ';'

2008-03-16 10:58:09 +00:00

subr_mbpool.c

…

subr_mchain.c

…

subr_module.c

…

subr_msgbuf.c

…

subr_param.c

Increase HZ_VM from 10 to 100. While 10 hz saves cpu time

2009-07-08 01:09:12 +00:00

subr_pcpu.c

Add ddb show dpcpu_off command to ease dpcpu memory debugging.

2009-08-12 12:06:16 +00:00

subr_power.c

General consensus is that it would be even better to run this in a

2005-11-09 16:22:56 +00:00

subr_prf.c

Remove redundant code in printf() and vprintf().

2009-02-27 13:28:54 +00:00

subr_prof.c

Use ANSI function definition for profil.

2009-02-03 07:52:36 +00:00

subr_rman.c

sysctl_rman: report shared resources to devinfo

2009-05-19 14:08:21 +00:00

subr_rtc.c

Clean up MI inittodr(9) and kill noop code.

2009-03-23 21:16:21 +00:00

subr_sbuf.c

Switch to simplified BSD license (with phk's approval), plus whitespace

2008-08-09 10:26:21 +00:00

subr_scanf.c

…

subr_sglist.c

This patch fixes two bugs in sglist(9) and improves robustness of the API via

2009-08-21 02:59:07 +00:00

subr_sleepqueue.c

Add new msleep(9) flag PBDY that shall be specified together with

2009-07-14 22:52:46 +00:00

subr_smp.c

* Completely Remove the option STOP_NMI from the kernel. This option

2009-08-13 17:09:45 +00:00

subr_stack.c

Add stack_print_short() and stack_print_short_ddb() interfaces to

2009-06-24 12:06:15 +00:00

subr_taskqueue.c

Remove unused taskqueue_find() function.

2009-08-18 13:55:48 +00:00

subr_trap.c

Add new msleep(9) flag PBDY that shall be specified together with

2009-07-14 22:52:46 +00:00

subr_turnstile.c

Make ddb command registration dynamic so modules can extend

2008-09-15 22:45:14 +00:00

subr_unit.c

…

subr_witness.c

Add minimal ZFS lock hierarchy

2009-05-20 02:51:48 +00:00

sys_generic.c

Fix the conformance of poll(2) for sockets after r195423 by

2009-08-23 12:44:15 +00:00

sys_pipe.c

Fix poll(2) and select(2) for named pipes to return "ready for read"

2009-07-07 09:43:44 +00:00

sys_process.c

Clean up a number of aspects of token generation from audit arguments to

2009-07-02 09:15:30 +00:00

sys_socket.c

Merge the remainder of kern_vimage.c and vimage.h into vnet.c and

2009-08-01 19:26:27 +00:00

syscalls.c

Regenerate after lpathconf(2) addition.

2009-07-08 15:25:27 +00:00

syscalls.master

There is an optimization in chmod(1), that makes it not to call chmod(2)

2009-07-08 15:23:18 +00:00

systrace_args.c

Regenerate after lpathconf(2) addition.

2009-07-08 15:25:27 +00:00

sysv_ipc.c

Change the ABI of some of the structures used by the SYSV IPC API:

2009-06-24 21:10:52 +00:00

sysv_msg.c

Change the ABI of some of the structures used by the SYSV IPC API:

2009-06-24 21:10:52 +00:00

sysv_sem.c

Change the ABI of some of the structures used by the SYSV IPC API:

2009-06-24 21:10:52 +00:00

sysv_shm.c

Use the correct cast for the arguments passed to freebsd_shmctl() in

2009-06-25 17:11:27 +00:00

tty_compat.c

Fix an awful bug inside our COMPAT_43TTY code.

2008-09-04 16:30:53 +00:00

tty_info.c

Print an extra newline when not at the first column already.

2009-05-17 16:17:48 +00:00

tty_inq.c

Enable secure TTY input buffer flushing by default.

2009-05-21 16:48:06 +00:00

tty_outq.c

Use unsigned longs for the TTY's sysctl stats.

2009-02-26 10:28:32 +00:00

tty_pts.c

Allow pty(4) to be loaded as a kld.

2009-08-23 20:26:09 +00:00

tty_tty.c

Remove unneeded Giant locking of /dev/tty.

2008-06-03 12:38:00 +00:00

tty_ttydisc.c

Add ttydisc_rint_simple().

2009-08-23 08:04:40 +00:00

tty.c

Fix regressions in return events of poll() on TTYs.

2009-07-08 10:21:52 +00:00

uipc_accf.c

Retire the MALLOC and FREE macros. They are an abomination unto style(9).

2008-10-23 15:53:51 +00:00

uipc_cow.c

Extend the struct vm_page wire_count to u_int to avoid the overflow

2009-01-03 13:24:08 +00:00

uipc_debug.c

Add missing socket options.

2009-05-26 09:19:21 +00:00

uipc_domain.c

When registering a protocol to an existing protocol domain via

2009-08-24 10:03:41 +00:00

uipc_mbuf2.c

Move "options MAC" from opt_mac.h to opt_global.h, as it's now in GENERIC

2009-06-05 14:55:22 +00:00

uipc_mbuf.c

Add m_mbuftouio() helper function to copy(out) an arbitrary

2009-06-22 22:20:38 +00:00

uipc_mqueue.c

Adapt vfs kqfilter to the shared vnode lock used by zfs write vop. Use

2009-06-10 20:59:32 +00:00

uipc_sem.c

Move "options MAC" from opt_mac.h to opt_global.h, as it's now in GENERIC

2009-06-05 14:55:22 +00:00

uipc_shm.c

Implement global and per-uid accounting of the anonymous memory. Add

2009-06-23 20:45:22 +00:00

uipc_sockbuf.c

In sbappendstream_locked() demote all incoming packet mbufs (and

2009-06-22 21:46:40 +00:00

uipc_socket.c

Fix poll() on half-closed sockets, while retaining POLLHUP for fifos.

2009-08-25 21:44:14 +00:00

uipc_syscalls.c

Merge the remainder of kern_vimage.c and vimage.h into vnet.c and

2009-08-01 19:26:27 +00:00

uipc_usrreq.c

Merge the remainder of kern_vimage.c and vimage.h into vnet.c and

2009-08-01 19:26:27 +00:00

vfs_acl.c

Move "options MAC" from opt_mac.h to opt_global.h, as it's now in GENERIC

2009-06-05 14:55:22 +00:00

vfs_aio.c

Adapt vfs kqfilter to the shared vnode lock used by zfs write vop. Use

2009-06-10 20:59:32 +00:00

vfs_bio.c

When buffer write is failed, it is wrong for brelse() to invalidate

2009-07-19 20:25:59 +00:00

vfs_cache.c

Correctly handle unlock for !MAKEENTRY case, after successfull attempt of

2009-08-14 10:57:28 +00:00

vfs_cluster.c

Remove a stale comment. The very same revision (r85511) that introduced

2009-06-30 19:39:17 +00:00

vfs_default.c

Add explicit struct ucred * argument for VOP_VPTOCNP, to be used by

2009-06-21 19:21:01 +00:00

vfs_export.c

Free struct ucreds allocated in vfs_hang_addrlist() when deleting

2009-06-29 18:09:07 +00:00

vfs_extattr.c

Replace AUDIT_ARG() with variable argument macros with a set more more

2009-06-27 13:58:44 +00:00

vfs_hash.c

…

vfs_init.c

Expand the scope of the sysctllock sx lock to protect the sysctl tree itself.

2009-02-06 14:51:32 +00:00

vfs_lookup.c

Eliminate ARG_UPATH[12] arguments to AUDIT_ARG_UPATH() and instead

2009-07-29 07:44:43 +00:00

vfs_mount.c

Fix some LORs between vnode locks and filedescriptor table locks.

2009-07-31 13:40:06 +00:00

vfs_subr.c

Call prison_check from vfs_suser rather than re-implementing it.

2009-07-02 14:19:33 +00:00

vfs_syscalls.c

Honor the vfs.timestamp_precision sysctl settings for utimes(path, NULL)

2009-08-26 14:32:37 +00:00

vfs_vnops.c

Fix mount reference leak when V_XSLEEP is specified to vn_start_write().

2009-09-01 12:05:39 +00:00

vnode_if.src

Add explicit struct ucred * argument for VOP_VPTOCNP, to be used by

2009-06-21 19:21:01 +00:00