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da57cf7c7e
freebsd-nq/sys/kern
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Alan Cox c6eb850aac Background: When proc_rwmem() wired and mapped a page, it also added 
a reference to the containing object.  The purpose of the reference
being to prevent the destruction of the object and an attempt to free
the wired page.  (Wired pages can't be freed.)  Unfortunately, this
approach does not work.  Some operations, like fork(2) that call
vm_object_split(), can move the wired page to a difference object,
thereby making the reference pointless and opening the possibility
of the wired page being freed.

A solution is to use vm_page_hold() in place of vm_page_wire().  Held
pages can be freed.  They are moved to a special hold queue until the
hold is released.

Submitted by:	tegge
2003-08-09 18:01:19 +00:00
..
bus_if.m Give print_child a default method. 2003-03-25 04:32:52 +00:00
clock_if.m Add a generic implementation of inittodr() and resettodr(), as well as 2002-04-04 23:39:10 +00:00
device_if.m
genassym.sh
imgact_aout.c Use __FBSDID(). 2003-06-11 00:56:59 +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 Use __FBSDID(). 2003-06-11 00:56:59 +00:00
imgact_gzip.c Use __FBSDID(). 2003-06-11 00:56:59 +00:00
imgact_shell.c Use __FBSDID(). 2003-06-11 00:56:59 +00:00
inflate.c Use __FBSDID(). 2003-06-11 00:56:59 +00:00
init_main.c Revert stuff which accidentally ended up in the previous commit. 2003-07-22 10:36:36 +00:00
init_sysent.c o Refine kse_thr_interrupt to allow it to handle different commands. 2003-07-17 22:45:33 +00:00
kern_acct.c Add fdidx argument to vn_open() and vn_open_cred() and pass -1 throughout. 2003-07-27 17:04:56 +00:00
kern_acl.c Move more ACL logic from the UFS code (ufs_acl.c) to the central POSIX.1e 2003-08-04 02:13:05 +00:00
kern_alq.c Add fdidx argument to vn_open() and vn_open_cred() and pass -1 throughout. 2003-07-27 17:04:56 +00:00
kern_clock.c Fix this to build on alpha. Build test successful. 2003-06-27 08:35:05 +00:00
kern_condvar.c Allow SA process unblocks a thread blocked in condition variable. 2003-07-02 01:19:15 +00:00
kern_conf.c Use __FBSDID(). 2003-06-11 00:56:59 +00:00
kern_context.c Use __FBSDID(). 2003-06-11 00:56:59 +00:00
kern_descrip.c Do some minor Giant pushdown made possible by copyin, fget, fdrop, 2003-08-04 21:28:57 +00:00
kern_environment.c Use __FBSDID(). 2003-06-11 00:56:59 +00:00
kern_event.c Initialize struct fileops with C99 sparse initialization. 2003-06-18 18:16:40 +00:00
kern_exec.c Add a "int fd" argument to VOP_OPEN() which in the future will 2003-07-26 07:32:23 +00:00
kern_exit.c Rename P_THREADED to P_SA. P_SA means a process is using scheduler 2003-06-15 00:31:24 +00:00
kern_fork.c Adjust a comment to remove staleness and take slightly less implementation 2003-08-04 20:35:13 +00:00
kern_idle.c Use __FBSDID(). 2003-06-11 00:56:59 +00:00
kern_intr.c Make swi_vm be INTR_MPSAFE. On all platforms, it is only used to activate 2003-07-01 16:00:38 +00:00
kern_jail.c Use __FBSDID(). 2003-06-11 00:56:59 +00:00
kern_kse.c Copyin the thread mailbox flags from the correct location 2003-08-08 20:23:10 +00:00
kern_kthread.c Use __FBSDID(). 2003-06-11 00:56:59 +00:00
kern_ktr.c Both 'c' an 'lines' are unused, the bogus init of lines was accidentally 2003-08-02 17:35:00 +00:00
kern_ktrace.c Consistently use the BSD u_int and u_short instead of the SYSV uint and 2003-08-07 15:04:27 +00:00
kern_linker.c Add fdidx argument to vn_open() and vn_open_cred() and pass -1 throughout. 2003-07-27 17:04:56 +00:00
kern_lock.c Rearrange the SYSINIT order to call lockmgr_init() earlier so that 2003-07-16 01:00:39 +00:00
kern_lockf.c Use __FBSDID(). 2003-06-11 00:56:59 +00:00
kern_mac.c Attempt to simplify #ifdef logic for MAC_ALWAYS_LABEL_MBUF. 2003-08-01 15:45:14 +00:00
kern_malloc.c Revert stuff which accidentally ended up in the previous commit. 2003-07-22 10:36:36 +00:00
kern_mib.c Use __FBSDID(). 2003-06-11 00:56:59 +00:00
kern_module.c Use __FBSDID(). 2003-06-11 00:56:59 +00:00
kern_mtxpool.c Rearrange the SYSINIT order to call lockmgr_init() earlier so that 2003-07-16 01:00:39 +00:00
kern_mutex.c If a spin lock is held for too long and WITNESS is enabled, then call 2003-07-31 18:52:18 +00:00
kern_ntptime.c During a positive leap second, the tai_time offset should be 2003-06-25 20:56:40 +00:00
kern_physio.c Grab Giant in physio() since non-giant drivers are starting to appear. 2003-08-02 09:40:53 +00:00
kern_poll.c Use __FBSDID(). 2003-06-11 00:56:59 +00:00
kern_proc.c kse.h is not needed for these files. 2003-08-05 12:08:49 +00:00
kern_prot.c Extend the mutex pool implementation to permit the creation and use of 2003-07-13 01:22:21 +00:00
kern_resource.c Extend the mutex pool implementation to permit the creation and use of 2003-07-13 01:22:21 +00:00
kern_sema.c Use __FBSDID(). 2003-06-11 00:56:59 +00:00
kern_shutdown.c Don't overwrite the static panicstr buffer for secondary and further 2003-06-15 11:43:00 +00:00
kern_sig.c Use correct signal when calling sigexit. 2003-07-30 23:11:37 +00:00
kern_subr.c Use __FBSDID(). 2003-06-11 00:56:59 +00:00
kern_switch.c Rename P_THREADED to P_SA. P_SA means a process is using scheduler 2003-06-15 00:31:24 +00:00
kern_sx.c Extend the mutex pool implementation to permit the creation and use of 2003-07-13 01:22:21 +00:00
kern_synch.c unifdef -DLAZY_SWITCH and start to tidy up the associated glue. 2003-07-10 01:02:59 +00:00
kern_syscalls.c Use __FBSDID(). 2003-06-11 00:56:59 +00:00
kern_sysctl.c Use __FBSDID(). 2003-06-11 00:56:59 +00:00
kern_tc.c typo fix in comment. 2003-07-02 08:01:52 +00:00
kern_thr.c style(9) 2003-07-04 06:59:28 +00:00
kern_thread.c Copyin the thread mailbox flags from the correct location 2003-08-08 20:23:10 +00:00
kern_time.c Use __FBSDID(). 2003-06-11 00:56:59 +00:00
kern_timeout.c Don't put callout_lock under #ifdef DIAGNOSTIC despite the fact that it 2003-06-20 08:39:04 +00:00
kern_umtx.c Initialize 'blocked' to NULL. I think this was a real problem, but I 2003-07-23 20:29:13 +00:00
kern_uuid.c Use __FBSDID(). 2003-06-11 00:56:59 +00:00
kern_xxx.c Use __FBSDID(). 2003-06-11 00:56:59 +00:00
ksched.c Use __FBSDID(). 2003-06-11 06:34:30 +00:00
link_elf_obj.c Add fdidx argument to vn_open() and vn_open_cred() and pass -1 throughout. 2003-07-27 17:04:56 +00:00
link_elf.c Add fdidx argument to vn_open() and vn_open_cred() and pass -1 throughout. 2003-07-27 17:04:56 +00:00
linker_if.m
Make.tags.inc Finish driving a stake through the heart of netns and the associated 2003-03-05 19:24:24 +00:00
Makefile Finish driving a stake through the heart of netns and the associated 2003-03-05 19:24:24 +00:00
makesyscalls.sh - Include umtx.h in files generated by makesyscalls.sh 2003-04-01 01:12:24 +00:00
md4c.c Use __FBSDID(). 2003-06-11 00:56:59 +00:00
md5c.c Revert stuff which accidentally ended up in the previous commit. 2003-07-22 10:36:36 +00:00
p1003_1b.c Use __FBSDID(). 2003-06-11 06:34:30 +00:00
posix4_mib.c Use __FBSDID(). 2003-06-11 06:34:30 +00:00
sched_4bsd.c Rename P_THREADED to P_SA. P_SA means a process is using scheduler 2003-06-15 00:31:24 +00:00
sched_ule.c - When stealing a kse in kseq_move() ignore the current kseq's min nice 2003-07-08 06:19:40 +00:00
subr_acl_posix1e.c Move more ACL logic from the UFS code (ufs_acl.c) to the central POSIX.1e 2003-08-04 02:13:05 +00:00
subr_autoconf.c Revert stuff which accidentally ended up in the previous commit. 2003-07-22 10:36:36 +00:00
subr_blist.c Use __FBSDID(). 2003-06-11 00:56:59 +00:00
subr_bus.c Use __FBSDID(). 2003-06-11 00:56:59 +00:00
subr_clist.c Revert stuff which accidentally ended up in the previous commit. 2003-07-22 10:36:36 +00:00
subr_clock.c Use __FBSDID(). 2003-06-11 00:56:59 +00:00
subr_devstat.c Use __FBSDID(). 2003-06-11 00:56:59 +00:00
subr_disk.c Use __FBSDID(). 2003-06-11 00:56:59 +00:00
subr_eventhandler.c Use __FBSDID(). 2003-06-11 00:56:59 +00:00
subr_hints.c Add a resource_disabled() helper function that returns true (non-zero) if 2003-07-02 16:01:38 +00:00
subr_kobj.c Use __FBSDID(). 2003-06-11 00:56:59 +00:00
subr_log.c Replace the code for reading and writing the kernel message buffer 2003-06-22 02:18:31 +00:00
subr_mbpool.c Add a facility for devices, specifically network interfaces, that require 2003-07-15 08:59:38 +00:00
subr_mbuf.c Now that we can call kmem_malloc without Giant it should be safe 2003-07-27 14:19:23 +00:00
subr_mchain.c Use __FBSDID(). 2003-06-11 00:56:59 +00:00
subr_module.c Use __FBSDID(). 2003-06-11 00:56:59 +00:00
subr_msgbuf.c Replace the code for reading and writing the kernel message buffer 2003-06-22 02:18:31 +00:00
subr_param.c Add init_param3() to subr_param. This function is called 2003-07-11 00:01:03 +00:00
subr_pcpu.c Use __FBSDID(). 2003-06-11 00:56:59 +00:00
subr_power.c Use __FBSDID(). 2003-06-11 00:56:59 +00:00
subr_prf.c Revert stuff which accidentally ended up in the previous commit. 2003-07-22 10:36:36 +00:00
subr_prof.c Use __FBSDID(). 2003-06-11 00:56:59 +00:00
subr_rman.c Use __FBSDID(). 2003-06-11 00:56:59 +00:00
subr_rtc.c Use __FBSDID(). 2003-06-11 00:56:59 +00:00
subr_sbuf.c Use __FBSDID(). 2003-06-11 00:56:59 +00:00
subr_scanf.c Use __FBSDID(). 2003-06-11 00:56:59 +00:00
subr_smp.c Document some sysctl variables. 2003-06-12 19:46:51 +00:00
subr_taskqueue.c Use __FBSDID(). 2003-06-11 00:56:59 +00:00
subr_trap.c kse.h is not needed for these files. 2003-08-05 12:08:49 +00:00
subr_turnstile.c If a spin lock is held for too long and WITNESS is enabled, then call 2003-07-31 18:52:18 +00:00
subr_witness.c Insert cosmetic spaces. 2003-08-04 19:24:25 +00:00
subr_xxx.c Use __FBSDID(). 2003-06-11 00:56:59 +00:00
sys_generic.c Remove Giant from writev(2). Eliminate trivial style differences between 2003-08-01 02:21:54 +00:00
sys_pipe.c - Remove GIANT_REQUIRED from pipespace(). 2003-08-08 22:38:15 +00:00
sys_process.c Background: When proc_rwmem() wired and mapped a page, it also added 2003-08-09 18:01:19 +00:00
sys_socket.c Initialize struct fileops with C99 sparse initialization. 2003-06-18 18:16:40 +00:00
syscalls.c o Refine kse_thr_interrupt to allow it to handle different commands. 2003-07-17 22:45:33 +00:00
syscalls.master o Refine kse_thr_interrupt to allow it to handle different commands. 2003-07-17 22:45:33 +00:00
sysv_ipc.c Use __FBSDID(). 2003-06-11 00:56:59 +00:00
sysv_msg.c Update some argument-documenting comments to match reality. 2003-08-07 16:42:27 +00:00
sysv_sem.c Update some argument-documenting comments to match reality. 2003-08-07 16:42:27 +00:00
sysv_shm.c Update some argument-documenting comments to match reality. 2003-08-07 16:42:27 +00:00
tty_compat.c Use __FBSDID(). 2003-06-11 00:56:59 +00:00
tty_conf.c Use __FBSDID(). 2003-06-11 00:56:59 +00:00
tty_cons.c Add fdidx argument to vn_open() and vn_open_cred() and pass -1 throughout. 2003-07-27 17:04:56 +00:00
tty_pty.c Use __FBSDID(). 2003-06-11 00:56:59 +00:00
tty_subr.c Revert stuff which accidentally ended up in the previous commit. 2003-07-22 10:36:36 +00:00
tty_tty.c Use __FBSDID(). 2003-06-11 00:56:59 +00:00
tty.c Use a new message buffer `consmsgbuf' to forward messages to a 2003-06-22 02:54:33 +00:00
uipc_accf.c Use __FBSDID(). 2003-06-11 00:56:59 +00:00
uipc_cow.c Use __FBSDID(). 2003-06-11 00:56:59 +00:00
uipc_domain.c Use __FBSDID(). 2003-06-11 00:56:59 +00:00
uipc_jumbo.c Lock the vm object when removing a page. 2003-06-11 21:23:04 +00:00
uipc_mbuf2.c Use __FBSDID(). 2003-06-11 00:56:59 +00:00
uipc_mbuf.c Three fixes: 2003-07-19 06:03:48 +00:00
uipc_proto.c Use __FBSDID(). 2003-06-11 00:56:59 +00:00
uipc_sem.c Use __FBSDID(). 2003-06-11 00:56:59 +00:00
uipc_sockbuf.c Guard against MLEN growing larger than a uint8_t due to MSIZE grwoing to a 2003-07-26 07:23:24 +00:00
uipc_socket2.c Guard against MLEN growing larger than a uint8_t due to MSIZE grwoing to a 2003-07-26 07:23:24 +00:00
uipc_socket.c Make the second argument to sooptcopyout() constant in order to 2003-08-05 00:27:54 +00:00
uipc_syscalls.c If connect(2) has been interrupted by a signal and therefore the 2003-08-06 14:04:47 +00:00
uipc_usrreq.c Use __FBSDID(). 2003-06-11 00:56:59 +00:00
vfs_acl.c Move more ACL logic from the UFS code (ufs_acl.c) to the central POSIX.1e 2003-08-04 02:13:05 +00:00
vfs_aio.c Add a f_vnode field to struct file. 2003-06-22 08:41:43 +00:00
vfs_bio.c Grab Giant in bufdonebio() since drivers may not hold it. 2003-08-02 09:45:10 +00:00
vfs_cache.c Make the VFS cache use zones instead of malloc(9). This results in a 2003-06-13 08:46:13 +00:00
vfs_cluster.c Revert stuff which accidentally ended up in the previous commit. 2003-07-22 10:36:36 +00:00
vfs_default.c I have not had any reports of trouble for a long time, so remove the 2003-06-15 19:49:14 +00:00
vfs_export.c Guard against MLEN growing larger than a uint8_t due to MSIZE grwoing to a 2003-07-26 07:23:24 +00:00
vfs_extattr.c td_dupfd just needs to be less than 0, it does not have to hold the 2003-08-07 17:08:26 +00:00
vfs_init.c Initialize struct vfsops C99-sparsely. 2003-06-12 20:48:38 +00:00
vfs_lookup.c Use __FBSDID(). 2003-06-11 00:56:59 +00:00
vfs_mount.c Add a new mount flag MNT_BYFSID that can be used to unmount a file 2003-07-01 17:40:23 +00:00
vfs_subr.c Consistently use the BSD u_int and u_short instead of the SYSV uint and 2003-08-07 15:04:27 +00:00
vfs_syscalls.c td_dupfd just needs to be less than 0, it does not have to hold the 2003-08-07 17:08:26 +00:00
vfs_vnops.c Rename VOP_RMEXTATTR() to VOP_DELETEEXTATTR() for consistency with the 2003-07-28 18:53:29 +00:00
vnode_if.src Rename VOP_RMEXTATTR() to VOP_DELETEEXTATTR() for consistency with the 2003-07-28 18:53:29 +00:00