mirror/freebsd
1
0
Fork 0
mirror of https://git.FreeBSD.org/src.git synced 2024-12-23 11:18:54 +00:00
Code Issues Releases Activity
d19ef81437
freebsd/sys/kern
History
Alan Cox d19ef81437 The synchronization provided by vm object locking has eliminated the 
need for most calls to vm_page_busy().  Specifically, most calls to
vm_page_busy() occur immediately prior to a call to vm_page_remove().
In such cases, the containing vm object is locked across both calls.
Consequently, the setting of the vm page's PG_BUSY flag is not even
visible to other threads that are following the synchronization
protocol.

This change (1) eliminates the calls to vm_page_busy() that
immediately precede a call to vm_page_remove() or functions, such as
vm_page_free() and vm_page_rename(), that call it and (2) relaxes the
requirement in vm_page_remove() that the vm page's PG_BUSY flag is
set.  Now, the vm page's PG_BUSY flag is set only when the vm object
lock is released while the vm page is still in transition.  Typically,
this is when it is undergoing I/O.
2004-11-03 20:17:31 +00:00
..
bus_if.m Minor formatting fixes for lines > 80 characters 2004-08-12 17:26:22 +00:00
clock_if.m
device_if.m Minor formatting fixes for lines > 80 characters 2004-08-12 17:26:22 +00:00
genassym.sh
imgact_aout.c Change the types of vn_rdwr_inchunks()'s len and aresid arguments to 2004-06-05 02:18:28 +00:00
imgact_elf32.c
imgact_elf64.c
imgact_elf.c On arm, set the default elf brand to FreeBSD, until the binutils do it for us. 2004-09-23 23:29:24 +00:00
imgact_gzip.c Locking for the per-process resource limits structure. 2004-02-04 21:52:57 +00:00
imgact_shell.c Don't treat # as a comment in interpreter specification line. 2004-10-31 11:12:59 +00:00
inflate.c
init_main.c Rework how we store process times in the kernel such that we always store 2004-10-05 18:51:11 +00:00
init_sysent.c Rebuild from syscalls.master:1.178. 2004-10-23 20:01:32 +00:00
kern_acct.c Rework how we store process times in the kernel such that we always store 2004-10-05 18:51:11 +00:00
kern_acl.c Rename suser_cred()'s PRISON_ROOT flag to SUSER_ALLOWJAIL. This is 2004-07-26 07:24:04 +00:00
kern_alq.c
kern_clock.c Rework how we store process times in the kernel such that we always store 2004-10-05 18:51:11 +00:00
kern_condvar.c Refine the turnstile and sleep queue interfaces just a bit: 2004-10-12 18:36:20 +00:00
kern_conf.c Get rid of the magic "stash" of cdev structures, we no longer call 2004-10-25 13:12:06 +00:00
kern_context.c
kern_descrip.c Push acquisition of the accept mutex out of sofree() into the caller 2004-10-18 22:19:43 +00:00
kern_environment.c Add TUNABLE_LONG and TUNABLE_ULONG, and use the latter for the 2004-10-31 15:50:33 +00:00
kern_event.c /me gets the wrong patch out of the pr :( 2004-10-14 03:26:50 +00:00
kern_exec.c Put on my peril sensitive sunglasses and add a flags field to the internal 2004-10-11 22:04:16 +00:00
kern_exit.c Remove P_STOPPED_TRACE bit if debugger dies without a chance to 2004-10-23 11:20:26 +00:00
kern_fork.c Back out rev 1.240; it is unnecessary. In particular, 2004-10-06 23:53:49 +00:00
kern_idle.c Give the 4bsd scheduler the ability to wake up idle processors 2004-09-01 06:42:02 +00:00
kern_intr.c - Change the ddb paging "support" to use a variable (db_lines_per_page) to 2004-11-01 22:15:15 +00:00
kern_jail.c Add two missing includes and remove two uneeded. 2004-06-27 09:03:22 +00:00
kern_kse.c Add an execve command for kse_thr_interrupt to allow libpthread to 2004-10-07 13:50:10 +00:00
kern_kthread.c Give setrunqueue() and sched_add() more of a clue as to 2004-09-01 02:11:28 +00:00
kern_ktr.c - Change the ddb paging "support" to use a variable (db_lines_per_page) to 2004-11-01 22:15:15 +00:00
kern_ktrace.c Rename suser_cred()'s PRISON_ROOT flag to SUSER_ALLOWJAIL. This is 2004-07-26 07:24:04 +00:00
kern_linker.c When trying each linker class in turn with a preloaded module, exit 2004-08-27 01:20:26 +00:00
kern_lock.c Reintroduce slightly modified patch from kern/69964. Check for 2004-08-27 01:41:28 +00:00
kern_lockf.c Remove advertising clause from University of California Regent's license, 2004-04-05 21:03:37 +00:00
kern_mac.c Disable use of synchronization early in the boot by the MAC Framework; 2004-10-30 14:20:59 +00:00
kern_malloc.c Turn VM_KMEM_SIZE_MAX and VM_KMEM_SIZE_SCALE into tunables. 2004-09-29 14:21:40 +00:00
kern_mbuf.c CTASSERT that MSZIE is a power of 2 (otherwise dtom() breaks) 2004-09-20 08:52:04 +00:00
kern_mib.c Remove advertising clause from University of California Regent's license, 2004-04-05 21:03:37 +00:00
kern_module.c Don't bother calling the module event handlers from module_shutdown() 2004-08-20 21:47:48 +00:00
kern_mtxpool.c
kern_mutex.c Refine the turnstile and sleep queue interfaces just a bit: 2004-10-12 18:36:20 +00:00
kern_ntptime.c Annual NTP kernel code spring-cleaning: 2004-03-14 15:23:05 +00:00
kern_physio.c Give dev_strategy() an explict cdev argument in preparation for removing 2004-10-29 07:16:37 +00:00
kern_poll.c Add a NULL param to an mi_switch() that I missed. 2004-07-03 02:38:03 +00:00
kern_proc.c Remove duplicate line. 2004-10-10 05:07:43 +00:00
kern_prot.c Remove sched_free_thread() which was only used 2004-08-31 06:12:13 +00:00
kern_resource.c Rework how we store process times in the kernel such that we always store 2004-10-05 18:51:11 +00:00
kern_sema.c Change the return value of sema_timedwait() so it returns 0 on 2004-06-14 18:19:05 +00:00
kern_shutdown.c Change the perfectly precise message 2004-10-04 13:13:23 +00:00
kern_sig.c Allow kill -9 to kill processes stuck in procfs STOPEVENTs. 2004-10-30 02:56:22 +00:00
kern_subr.c The synchronization provided by vm object locking has eliminated the 2004-11-03 20:17:31 +00:00
kern_switch.c If a process needs to be swapped in, wakeup the swapper from within 2004-10-16 06:38:22 +00:00
kern_sx.c Fix _sx_assert() to panic() rather than printf() when an assertion fails 2004-02-27 16:13:44 +00:00
kern_synch.c If a process needs to be swapped in, wakeup the swapper from within 2004-10-16 06:38:22 +00:00
kern_syscalls.c Do a pass over all modules in the kernel and make them return EOPNOTSUPP 2004-07-15 08:26:07 +00:00
kern_sysctl.c Move the 'debug' sysctl tree under options SYSCTL_DEBUG. It generates 2004-10-27 19:26:01 +00:00
kern_tc.c Put on my peril sensitive sunglasses and add a flags field to the internal 2004-10-11 22:04:16 +00:00
kern_thr.c Close a race between a thread exiting and the freeing of it's stack. 2004-10-06 14:23:00 +00:00
kern_thread.c Whitespace fix. 2004-10-12 19:36:00 +00:00
kern_time.c Rework how we store process times in the kernel such that we always store 2004-10-05 18:51:11 +00:00
kern_timeout.c Cut a KTR record whenever a callout is invoked. Mark whether it runs 2004-08-06 21:49:00 +00:00
kern_umtx.c writers must hold both sched_lock and the process lock; therefore, readers 2004-07-12 15:28:31 +00:00
kern_uuid.c Fix generation of random multicast MAC address. 2004-01-22 13:34:11 +00:00
kern_xxx.c In osethostname(), don't need to call suser() directly as 2004-10-22 12:10:50 +00:00
ksched.c
link_elf_obj.c Add support for completing the installation of ELF relocatable 2004-08-29 01:21:51 +00:00
link_elf.c Normalize the VM wiring done with SPARSE_MAPPING: check for errors, and 2004-08-09 18:46:13 +00:00
linker_if.m
Make.tags.inc
Makefile
makesyscalls.sh Remove the namespace column from the syscalls tables. We don't actually 2003-12-23 03:50:43 +00:00
md4c.c
md5c.c
p1003_1b.c
posix4_mib.c
sched_4bsd.c When preempting a thread, put it back on the HEAD of its run queue. 2004-10-05 22:03:10 +00:00
sched_ule.c - When choosing a thread on the run queue, check to see if its nice is 2004-10-30 12:19:15 +00:00
subr_acl_posix1e.c Rename suser_cred()'s PRISON_ROOT flag to SUSER_ALLOWJAIL. This is 2004-07-26 07:24:04 +00:00
subr_autoconf.c Remove advertising clause from University of California Regent's license, 2004-04-05 21:03:37 +00:00
subr_blist.c Move the definitions of SWAPBLK_NONE and SWAPBLK_MASK from vm_page.h to 2004-06-04 04:03:26 +00:00
subr_bus.c Don't print the singularly unhelpful message: 2004-11-03 09:06:45 +00:00
subr_clist.c Preparation commit for the tty cleanups that will follow in the near 2004-07-15 20:47:41 +00:00
subr_clock.c Remove advertising clause from University of California Regent's license, 2004-04-05 21:03:37 +00:00
subr_devstat.c Do the dreaded s/dev_t/struct cdev */ 2004-06-16 09:47:26 +00:00
subr_disk.c Add bioq_takefirst(). 2004-08-19 19:51:51 +00:00
subr_eventhandler.c
subr_hints.c
subr_kdb.c Zero terminate empty sting in kdb_sysctl_available. 2004-10-21 01:11:25 +00:00
subr_kobj.c
subr_log.c Do the dreaded s/dev_t/struct cdev */ 2004-06-16 09:47:26 +00:00
subr_mbpool.c Pass MTX_DEF as the last argument to mtx_init() instead of 0. This 2003-12-07 21:53:41 +00:00
subr_mchain.c Remove advertising clause from University of California Regent's license, 2004-04-05 21:03:37 +00:00
subr_module.c
subr_msgbuf.c
subr_param.c Remove advertising clause from University of California Regent's license, 2004-04-05 21:03:37 +00:00
subr_pcpu.c
subr_power.c Move the kernel power change printf under bootverbose since the 2004-01-02 18:24:13 +00:00
subr_prf.c Update for the KDB framework: 2004-07-10 21:43:23 +00:00
subr_prof.c - Move TDF_OWEPREEMPT, TDF_OWEUPC, and TDF_USTATCLOCK over to td_pflags 2004-07-16 21:04:55 +00:00
subr_rman.c Add a newline. 2004-08-19 20:16:09 +00:00
subr_rtc.c Remove advertising clause from University of California Regent's license, 2004-04-05 21:03:37 +00:00
subr_sbuf.c Cosmetic adjustment to previous commit: name the second argument to 2004-07-09 11:37:44 +00:00
subr_scanf.c Remove advertising clause from University of California Regent's license, 2004-04-05 21:03:37 +00:00
subr_sleepqueue.c Refine the turnstile and sleep queue interfaces just a bit: 2004-10-12 18:36:20 +00:00
subr_smp.c Move 4bsd specific experimental IP code into the 4bsd file. 2004-09-03 07:42:31 +00:00
subr_taskqueue.c Add taskqueue_drain. This waits for the specified task to finish, if 2004-10-05 04:16:01 +00:00
subr_trap.c Add a new per-thread private flag: TDP_GEOM. 2004-10-23 20:49:17 +00:00
subr_turnstile.c Refine the turnstile and sleep queue interfaces just a bit: 2004-10-12 18:36:20 +00:00
subr_unit.c Add delete_unrhdr() function. 2004-10-25 12:27:03 +00:00
subr_witness.c Add entropy harvest mutex to hard-coded spin lock witness lock order, 2004-10-11 08:26:18 +00:00
sys_generic.c Poll() uses the array smallbits that is big enough to hold 32 struct 2004-08-27 21:23:50 +00:00
sys_pipe.c Major enhancements to pipe memory usage: 2004-08-16 01:27:24 +00:00
sys_process.c Add pl_flags to ptrace_lwpinfo, two flags PL_FLAG_SA and PL_FLAG_BOUND 2004-08-08 22:26:11 +00:00
sys_socket.c Push Giant acquisition down into fo_stat() from most callers. Acquire 2004-07-22 20:40:23 +00:00
syscalls.c Rebuild from syscalls.master:1.178. 2004-10-23 20:01:32 +00:00
syscalls.master Add system call place-holders for the following system calls 2004-10-23 20:00:43 +00:00
sysv_ipc.c Add an annotation to the comment for sysv_ipc.c to indicate that the 2004-10-22 12:12:40 +00:00
sysv_msg.c Add missing #include <sys/module.h> 2004-05-30 20:34:58 +00:00
sysv_sem.c Add missing #include <sys/module.h> 2004-05-30 20:34:58 +00:00
sysv_shm.c Push Giant deep into vm_forkproc(), acquiring it only if the process has 2004-09-03 05:11:32 +00:00
tty_compat.c Put the pre FreeBSD-2.x tty compat code under BURN_BRIDGES. 2004-06-21 22:57:16 +00:00
tty_conf.c Preparation commit for the tty cleanups that will follow in the near 2004-07-15 20:47:41 +00:00
tty_cons.c Hold threadcount reference when we call into the underlying console 2004-09-24 07:16:56 +00:00
tty_pty.c Add new function ttyinitmode() which sets our systemwide default 2004-10-18 21:51:27 +00:00
tty_subr.c Preparation commit for the tty cleanups that will follow in the near 2004-07-15 20:47:41 +00:00
tty_tty.c Second half of the dev_t cleanup. 2004-06-17 17:16:53 +00:00
tty.c Restore TTYDEF_LFLAG to set echo bits. 2004-11-03 19:16:55 +00:00
uipc_accf.c Add a global mutex, accept_filter_mtx, to protect the global list of 2004-06-01 04:08:48 +00:00
uipc_cow.c In some cases, sf_buf_alloc() should sleep with pri PCATCH; in others, it 2004-04-03 09:16:27 +00:00
uipc_domain.c Aquire GIANT in pf_proto_[un]register() before manipulating the protosw. 2004-10-23 18:52:06 +00:00
uipc_jumbo.c The synchronization provided by vm object locking has eliminated the 2004-11-03 20:17:31 +00:00
uipc_mbuf2.c Rename _m_tag_free() to m_tag_free_default() and make it non-static. 2004-10-11 18:40:19 +00:00
uipc_mbuf.c improve the mbuf m_print function.. Only pull length from pkthdr if there 2004-09-28 18:40:18 +00:00
uipc_proto.c Remove advertising clause from University of California Regent's license, 2004-04-05 21:03:37 +00:00
uipc_sem.c Add missing #include <sys/module.h> 2004-05-30 20:34:58 +00:00
uipc_sockbuf.c Fix a typo in a comparison appeared in rev. 1.125. 2004-10-27 05:37:58 +00:00
uipc_socket2.c Fix a typo in a comparison appeared in rev. 1.125. 2004-10-27 05:37:58 +00:00
uipc_socket.c Acquire the accept mutex in soabort() before calling sotryfree(), as 2004-11-02 17:15:13 +00:00
uipc_syscalls.c The synchronization provided by vm object locking has eliminated the 2004-11-03 20:17:31 +00:00
uipc_usrreq.c Push acquisition of the accept mutex out of sofree() into the caller 2004-10-18 22:19:43 +00:00
vfs_acl.c Rename suser_cred()'s PRISON_ROOT flag to SUSER_ALLOWJAIL. This is 2004-07-26 07:24:04 +00:00
vfs_aio.c Give dev_strategy() an explict cdev argument in preparation for removing 2004-10-29 07:16:37 +00:00
vfs_bio.c The synchronization provided by vm object locking has eliminated the 2004-11-03 20:17:31 +00:00
vfs_cache.c Remove advertising clause from University of California Regent's license, 2004-04-05 21:03:37 +00:00
vfs_cluster.c Lock bp->b_bufobj->b_object instead of bp->b_object 2004-10-28 08:38:46 +00:00
vfs_default.c Remove VOP_SPECSTRATEGY() from the system. 2004-10-29 10:59:28 +00:00
vfs_export.c Make VFS_ROOT() and vflush() take a thread argument. 2004-07-12 08:14:09 +00:00
vfs_extattr.c Rename suser_cred()'s PRISON_ROOT flag to SUSER_ALLOWJAIL. This is 2004-07-26 07:24:04 +00:00
vfs_init.c Simplify initialization of va_null a little bit. 2004-09-15 21:42:03 +00:00
vfs_lookup.c Assert Giant in namei(). Bugs have been reported in which, following 2004-08-04 18:39:07 +00:00
vfs_mount.c Drop Giant around the call to g_waitidle(). 2004-10-23 20:21:05 +00:00
vfs_subr.c Loose vfs_mountedon() 2004-10-29 11:15:08 +00:00
vfs_syscalls.c Rename suser_cred()'s PRISON_ROOT flag to SUSER_ALLOWJAIL. This is 2004-07-26 07:24:04 +00:00
vfs_vnops.c Put the I/O block size in bufobj->bo_bsize. 2004-10-26 07:39:12 +00:00
vnode_if.src Remove VOP_SPECSTRATEGY() from the system. 2004-10-29 10:59:28 +00:00