kib 42cc2c0d98 If more than one thread allocated sf buffers for sendfile(2), and ...

each of the threads needs more while current pool of the buffers is
exhausted, then neither thread can make progress.

Switch to nowait allocations after we got first buffer already.

Reported by:	az
Reviewed by:	alc (previous version)
Tested by:	pho
MFC after:	1 week

2011-01-28 17:37:09 +00:00

..

bus_if.m

bus_add_child: add specialized default implementation that calls panic

2010-09-13 08:34:20 +00:00

clock_if.m

…

cpufreq_if.m

…

device_if.m

…

genassym.sh

…

imgact_aout.c

…

imgact_elf32.c

…

imgact_elf64.c

…

imgact_elf.c

Use the same expression to report stack protection mode for AT_STACKEXEC

2011-01-08 18:41:19 +00:00

imgact_gzip.c

…

imgact_shell.c

Fix exec_imgact_shell()'s handling of two error cases: (1) Previously, if

2010-09-21 16:24:51 +00:00

inflate.c

…

init_main.c

- Properly initialize the base priority (td_base_pri) of thread0 to PVM

2011-01-06 22:26:00 +00:00

init_sysent.c

Regen

2010-08-30 14:26:02 +00:00

kern_acct.c

…

kern_alq.c

…

kern_clock.c

After some off-list discussion, revert a number of changes to the

2010-11-22 19:32:54 +00:00

kern_clocksource.c

sysctl(9) cleanup checkpoint: amd64 GENERIC builds cleanly.

2011-01-12 19:54:19 +00:00

kern_condvar.c

…

kern_conf.c

Fix race in devfs by using LIST_FIRST() instead of

2010-12-11 08:44:10 +00:00

kern_cons.c

…

kern_context.c

…

kern_cpu.c

…

kern_cpuset.c

Use integer for size of cpuset, as it won't be bigger than INT_MAX,

2010-11-01 00:42:25 +00:00

kern_ctf.c

…

kern_descrip.c

Do not trip a KASSERT if /dev/null cannot be opened for a setuid program.

2011-01-28 15:29:35 +00:00

kern_dtrace.c

…

kern_environment.c

…

kern_et.c

sysctl(9) cleanup checkpoint: amd64 GENERIC builds cleanly.

2011-01-12 19:54:19 +00:00

kern_event.c

…

kern_exec.c

Create shared (readonly) page. Each ABI may specify the use of page by

2011-01-08 16:13:44 +00:00

kern_exit.c

By using the 32-bit Linux version of Sun's Java Development Kit 1.6

2010-11-22 09:06:59 +00:00

kern_fail.c

Initialize fp_location for explicitly managed fail points, and push

2010-12-21 18:23:03 +00:00

kern_fork.c

Allow debugger to specify that children of the traced process should be

2011-01-25 10:59:21 +00:00

kern_gzio.c

…

kern_hhook.c

Fix hhook_head_is_virtualised() so that "ret" can't be used uninitialised.

2011-01-11 01:11:07 +00:00

kern_idle.c

…

kern_intr.c

- Retire some unused ithread priorities: PI_TTYHIGH, PI_TAPE, and

2011-01-11 22:15:30 +00:00

kern_jail.c

Add macro to test the sv_flags of any process. Change some places to test

2011-01-26 20:03:58 +00:00

kern_khelp.c

- Introduce the Hhook (Helper Hook) KPI. The KPI is closely modelled on pfil(9),

2010-12-21 13:45:29 +00:00

kern_kthread.c

- Properly initialize the base priority (td_base_pri) of thread0 to PVM

2011-01-06 22:26:00 +00:00

kern_ktr.c

…

kern_ktrace.c

- When disabling ktracing on a process, free any pending requests that

2010-10-21 19:17:40 +00:00

kern_linker.c

Specify a CTLTYPE_FOO so that a future sysctl(8) change does not need

2011-01-18 21:14:18 +00:00

kern_lock.c

Remove unneeded includes of <sys/linker_set.h>. Other headers that use

2011-01-11 13:59:06 +00:00

kern_lockf.c

…

kern_lockstat.c

…

kern_malloc.c

Explicitly wire the user buffer rather than doing it implicitly in

2011-01-27 00:34:12 +00:00

kern_mbuf.c

…

kern_mib.c

sysctl(9) cleanup checkpoint: amd64 GENERIC builds cleanly.

2011-01-12 19:54:19 +00:00

kern_module.c

Style fix.

2010-11-22 15:28:54 +00:00

kern_mtxpool.c

…

kern_mutex.c

- Remove <machine/mutex.h>. Most of the headers were empty, and the

2010-11-09 20:46:41 +00:00

kern_ntptime.c

Fix up a few more sysctl(9) mis-typing found in various LINT builds.

2011-01-13 18:20:27 +00:00

kern_osd.c

…

kern_physio.c

Account i/o done on cdevs.

2010-11-25 20:05:11 +00:00

kern_pmc.c

…

kern_poll.c

…

kern_priv.c

…

kern_proc.c

Allow debugger to specify that children of the traced process should be

2011-01-25 10:59:21 +00:00

kern_prot.c

…

kern_resource.c

- Follow r216313, the sched_unlend_user_prio is no longer needed, always

2010-12-29 09:26:46 +00:00

kern_rmlock.c

No need to include sys/systm.h twice.

2010-11-16 14:08:21 +00:00

kern_rwlock.c

…

kern_sdt.c

…

kern_sema.c

…

kern_shutdown.c

Mostly revert r203420, and add similar functionality into ada(4) since the

2010-10-24 16:31:57 +00:00

kern_sig.c

Allow debugger to specify that children of the traced process should be

2011-01-25 10:59:21 +00:00

kern_switch.c

…

kern_sx.c

sysctl(9) cleanup checkpoint: amd64 GENERIC builds cleanly.

2011-01-12 19:54:19 +00:00

kern_synch.c

Only change the priority of timeshare threads to PRI_MAX_TIMESHARE

2011-01-06 22:19:15 +00:00

kern_syscalls.c

Call chainevh callback when we are invoked with neither MOD_LOAD nor

2010-10-21 20:31:50 +00:00

kern_sysctl.c

Explicitly wire the user buffer rather than doing it implicitly in

2011-01-27 00:34:12 +00:00

kern_tc.c

Introduce signed and unsigned version of CTLTYPE_QUAD, renaming

2011-01-19 23:00:25 +00:00

kern_thr.c

In thr_exit() and kthread_exit(), only remove thread from

2010-10-23 13:16:39 +00:00

kern_thread.c

MFp4:

2010-12-09 05:16:20 +00:00

kern_time.c

Create a global thread hash table to speed up thread lookup, use

2010-10-09 02:50:23 +00:00

kern_timeout.c

Revert r216805.

2011-01-08 18:51:15 +00:00

kern_umtx.c

- Follow r216313, the sched_unlend_user_prio is no longer needed, always

2010-12-29 09:26:46 +00:00

kern_uuid.c

…

kern_xxx.c

…

ksched.c

…

link_elf_obj.c

Similar to sys/net/vnet.h, define the linker set name for sys/sys/pcpu.h

2010-11-14 20:14:25 +00:00

link_elf.c

Whitespace and other aspects of style(9). No functional changes.

2010-11-08 20:57:08 +00:00

linker_if.m

…

Make.tags.inc

…

Makefile

Adjust the all target message (but maybe all: sysent is better?

2010-10-02 22:12:41 +00:00

makesyscalls.sh

…

md4c.c

…

md5c.c

…

p1003_1b.c

Set various POSIX capability sysctls to the version of the API that is

2010-11-19 17:56:16 +00:00

posix4_mib.c

Set various POSIX capability sysctls to the version of the API that is

2010-11-19 17:56:16 +00:00

sched_4bsd.c

Rework realtime priority support:

2011-01-14 17:06:54 +00:00

sched_ule.c

Rework realtime priority support:

2011-01-14 17:06:54 +00:00

serdev_if.m

…

stack_protector.c

…

subr_acl_nfs4.c

Adapt filesystem-independent NFSv4 ACL code (used by UFS, but not by ZFS)

2010-12-13 18:56:04 +00:00

subr_acl_posix1e.c

execve(2) has a special check for file permissions: a file must have at

2010-08-30 16:30:18 +00:00

subr_autoconf.c

Retire PCONFIG and leave the priority of thread0 alone when waiting for

2011-01-06 22:09:37 +00:00

subr_blist.c

…

subr_bufring.c

…

subr_bus.c

Specify a CTLTYPE_FOO so that a future sysctl(8) change does not need

2011-01-18 21:14:18 +00:00

subr_clock.c

Improve style and wording of comments and sysctl descriptions [1].

2011-01-09 14:34:56 +00:00

subr_devstat.c

Finish r210923, 210926. Mark some devices as eternal.

2011-01-04 10:59:38 +00:00

subr_disk.c

Correct bioq_disksort so that bioq_insert_tail() offers barrier semantic.

2010-09-02 19:40:28 +00:00

subr_eventhandler.c

…

subr_fattime.c

…

subr_firmware.c

…

subr_hash.c

…

subr_hints.c

…

subr_kdb.c

debug.kdb.stop_cpus sysctl: hint that this is also a tunable

2010-09-30 16:47:01 +00:00

subr_kobj.c

sysctl(9) cleanup checkpoint: amd64 GENERIC builds cleanly.

2011-01-12 19:54:19 +00:00

subr_lock.c

Explicitly wire the user buffer rather than doing it implicitly in

2011-01-27 00:34:12 +00:00

subr_log.c

Finish r210923, 210926. Mark some devices as eternal.

2011-01-04 10:59:38 +00:00

subr_mbpool.c

…

subr_mchain.c

…

subr_module.c

…

subr_msgbuf.c

…

subr_param.c

Make MSGBUF_SIZE kernel option a loader tunable kern.msgbufsize.

2011-01-21 10:26:26 +00:00

subr_pcpu.c

Remove unneeded includes of <sys/linker_set.h>. Other headers that use

2011-01-11 13:59:06 +00:00

subr_power.c

…

subr_prf.c

…

subr_prof.c

…

subr_rman.c

…

subr_rtc.c

…

subr_sbuf.c

Re-add r212370 now that the LOR in powerpc64 has been resolved:

2010-09-16 16:13:12 +00:00

subr_scanf.c

…

subr_sglist.c

…

subr_sleepqueue.c

Explicitly wire the user buffer rather than doing it implicitly in

2011-01-27 00:34:12 +00:00

subr_smp.c

sysctl(9) cleanup checkpoint: amd64 GENERIC builds cleanly.

2011-01-12 19:54:19 +00:00

subr_stack.c

kdb_backtrace: use stack_print_ddb instead of stack_print

2010-09-22 06:45:07 +00:00

subr_taskqueue.c

taskqueue: drop unused tq_name field

2010-11-23 14:30:22 +00:00

subr_trap.c

Allow debugger to specify that children of the traced process should be

2011-01-25 10:59:21 +00:00

subr_turnstile.c

…

subr_uio.c

…

subr_unit.c

…

subr_witness.c

Explicitly wire the user buffer rather than doing it implicitly in

2011-01-27 00:34:12 +00:00

sys_generic.c

For some file types, select code registers two selfd structures. E.g.,

2010-08-28 17:42:08 +00:00

sys_pipe.c

Introduce and use a new VM interface for temporarily pinning pages. This

2010-12-25 21:26:56 +00:00

sys_process.c

Add macro to test the sv_flags of any process. Change some places to test

2011-01-26 20:03:58 +00:00

sys_socket.c

…

syscalls.c

Regen

2010-08-30 14:26:02 +00:00

syscalls.master

Make the syscalls reserved for AFS usable by OpenAFS port.

2010-08-30 14:24:44 +00:00

systrace_args.c

Regen

2010-08-30 14:26:02 +00:00

sysv_ipc.c

…

sysv_msg.c

Specify a CTLTYPE_FOO so that a future sysctl(8) change does not need

2011-01-18 21:14:18 +00:00

sysv_sem.c

Specify a CTLTYPE_FOO so that a future sysctl(8) change does not need

2011-01-18 21:14:18 +00:00

sysv_shm.c

Specify a CTLTYPE_FOO so that a future sysctl(8) change does not need

2011-01-18 21:14:18 +00:00

tty_compat.c

…

tty_info.c

…

tty_inq.c

…

tty_outq.c

…

tty_pts.c

…

tty_tty.c

Finish r210923, 210926. Mark some devices as eternal.

2011-01-04 10:59:38 +00:00

tty_ttydisc.c

…

tty.c

Finish r210923, 210926. Mark some devices as eternal.

2011-01-04 10:59:38 +00:00

uipc_accf.c

…

uipc_cow.c

Correct the order of the arguments to vm_fault_quick_hold_pages().

2010-12-26 01:42:52 +00:00

uipc_debug.c

…

uipc_domain.c

…

uipc_mbuf2.c

…

uipc_mbuf.c

…

uipc_mqueue.c

Create a global thread hash table to speed up thread lookup, use

2010-10-09 02:50:23 +00:00

uipc_sem.c

Set the POSIX semaphore capability when the semaphore module is enabled.

2010-11-19 17:57:50 +00:00

uipc_shm.c

Replace pointer to "struct uidinfo" with pointer to "struct ucred"

2010-12-02 17:37:16 +00:00

uipc_sockbuf.c

…

uipc_socket.c

This commit implements the SO_USER_COOKIE socket option, which lets

2010-11-12 13:02:26 +00:00

uipc_syscalls.c

If more than one thread allocated sf buffers for sendfile(2), and

2011-01-28 17:37:09 +00:00

uipc_usrreq.c

Specify a CTLTYPE_FOO so that a future sysctl(8) change does not need

2011-01-18 21:14:18 +00:00

vfs_acl.c

…

vfs_aio.c

Create a global thread hash table to speed up thread lookup, use

2010-10-09 02:50:23 +00:00

vfs_bio.c

Remove OBJ_CLEANING flag. The vfs_setdirty_locked_object() is the only

2010-12-29 22:26:49 +00:00

vfs_cache.c

Fix some more style(9) issues.

2010-11-14 16:10:15 +00:00

vfs_cluster.c

…

vfs_default.c

…

vfs_export.c

…

vfs_extattr.c

…

vfs_hash.c

…

vfs_init.c

…

vfs_lookup.c

…

vfs_mount.c

Replace spaces with tabs.

2011-01-24 17:08:26 +00:00

vfs_mountroot.c

Make RB_CDROM work. This should probably check for a disc in cd1 and acd1

2011-01-08 19:50:13 +00:00

vfs_subr.c

When vtruncbuf() iterates over the vnode buffer list, lock buffer object

2011-01-25 14:04:02 +00:00

vfs_syscalls.c

…

vfs_vnops.c

…

vnode_if.src

…