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beef8a367c
freebsd-skq/sys/kern
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Julian Elischer beef8a367c This solves a deadlock that can occur when read()ing into a file-mmap() 
space. When doing this, it is possible to for another process to attempt
to get an exclusive lock on the vnode and deadlock the mmap/read
combination when the uiomove() call tries to obtain a second
shared lock on the vnode. There is still a potential deadlock
situation with write()/mmap().
Submitted by: Matt Dillon <dillon@freebsd.org>
Reviewed by: Luoqi Chen <luoqi@freebsd.org>
Delimmitted by tag PRE_MATT_MMAP_LOCK and POST_MATT_MMAP_LOCK
in kern/kern_lock.c kern/kern_subr.c
1999-03-12 03:09:29 +00:00
..
bus_if.m
device_if.m
imgact_aout.c For clarity, use the "map" variable introduced by the last commit 1999-03-10 07:07:42 +00:00
imgact_elf.c If you merge this into -stable, please increment __FreeBSD_version 1999-02-20 23:52:34 +00:00
imgact_gzip.c *_execsw static structures cannot be const due to the way they interact 1999-01-29 22:59:43 +00:00
imgact_shell.c *_execsw static structures cannot be const due to the way they interact 1999-01-29 22:59:43 +00:00
inflate.c
init_main.c Removed all traces of `p_switchtime'. The relevant timestamp is per-cpu, 1999-02-28 10:53:29 +00:00
init_sysent.c
kern_acct.c
kern_clock.c Make even more of the PPSAPI implementations generic. 1999-03-11 15:09:51 +00:00
kern_conf.c Fix warnings in preparation for adding -Wall -Wcast-qual to the 1999-01-27 21:50:00 +00:00
kern_descrip.c Split DIAGNOSTIC -> DIAGNOSTIC, INVARIANTS, and INVARIANT_SUPPORT as 1999-01-08 17:31:30 +00:00
kern_environment.c Fix warnings related to -Wall -Wcast-qual 1999-01-28 17:32:05 +00:00
kern_exec.c Hide access to vmspace:vm_pmap with inline function vmspace_pmap(). This 1999-02-19 14:25:37 +00:00
kern_exit.c Fixed runtime accounting. The time since the previous context switch 1999-03-11 21:53:12 +00:00
kern_fork.c Fix thread/process tracking and differentiation for Linux threads emulation. 1999-03-02 00:28:09 +00:00
kern_intr.c
kern_ktrace.c
kern_linker.c * Register sysctl nodes before running sysinits when loading files and 1999-03-07 16:06:41 +00:00
kern_lkm.c Fix warnings in preparation for adding -Wall -Wcast-qual to the 1999-01-27 21:50:00 +00:00
kern_lock.c This solves a deadlock that can occur when read()ing into a file-mmap() 1999-03-12 03:09:29 +00:00
kern_lockf.c Fix warnings in preparation for adding -Wall -Wcast-qual to the 1999-01-27 21:50:00 +00:00
kern_malloc.c Fix warnings in preparation for adding -Wall -Wcast-qual to the 1999-01-27 21:50:00 +00:00
kern_mib.c Ok, people didn't like kern.conf_dir. Poof, backed out. 1999-01-26 07:37:11 +00:00
kern_module.c More -Wall / -Wcast-qual cleanup. Also, EXEC_SET can't use 1999-01-29 08:36:45 +00:00
kern_ntptime.c Make even more of the PPSAPI implementations generic. 1999-03-11 15:09:51 +00:00
kern_physio.c This is a rather large commit that encompasses the new swapper, 1999-01-21 08:29:12 +00:00
kern_proc.c Hide access to vmspace:vm_pmap with inline function vmspace_pmap(). This 1999-02-19 14:25:37 +00:00
kern_prot.c Fix warnings in preparation for adding -Wall -Wcast-qual to the 1999-01-28 00:57:57 +00:00
kern_random.c
kern_resource.c Fixed runtime accounting. The time since the previous context switch 1999-03-11 21:53:12 +00:00
kern_shutdown.c An error in the last commit; the changes were submitted by, not reviewed by, 1999-01-30 19:29:10 +00:00
kern_sig.c Enable Linux threads support by default. 1999-01-26 02:38:12 +00:00
kern_subr.c This solves a deadlock that can occur when read()ing into a file-mmap() 1999-03-12 03:09:29 +00:00
kern_synch.c The magic "no-cpu" cpu number is 0xff. Don't misrepresent cpu 1999-03-05 16:38:13 +00:00
kern_syscalls.c Move lkmnosys() from kern_lkm.c to here. 1999-01-17 18:58:04 +00:00
kern_sysctl.c * Change sysctl from using linker_set to construct its tree using SLISTs. 1999-02-16 10:49:55 +00:00
kern_tc.c Make even more of the PPSAPI implementations generic. 1999-03-11 15:09:51 +00:00
kern_threads.c Removed bogus casts to c_caddr_t. This is part of terminating 1999-01-29 08:29:05 +00:00
kern_time.c Added a used #include (don't depend on "vnode_if.h" including <sys/buf.h>). 1999-02-25 15:54:06 +00:00
kern_timeout.c Fix callout_init(). This didn't have any practical effect since it 1999-03-06 22:27:02 +00:00
kern_xxx.c
ksched.c
link_aout.c Fix warnings in preparation for adding -Wall -Wcast-qual to the 1999-01-28 00:57:57 +00:00
link_elf_obj.c Cast to `const char *' instead of to c_caddr_t. This is part of 1999-01-29 09:04:27 +00:00
link_elf.c Cast to `const char *' instead of to c_caddr_t. This is part of 1999-01-29 09:04:27 +00:00
Make.tags.inc Update to know about current kernel directory layout. 1999-02-28 22:14:16 +00:00
makedevops.pl
makedevops.sh
Makefile
makesyscalls.sh
md5c.c
p1003_1b.c
posix4_mib.c * Change sysctl from using linker_set to construct its tree using SLISTs. 1999-02-16 10:49:55 +00:00
subr_autoconf.c Split DIAGNOSTIC -> DIAGNOSTIC, INVARIANTS, and INVARIANT_SUPPORT as 1999-01-08 17:31:30 +00:00
subr_blist.c Add new blist module - radix tree based bitmap allocator with 1999-01-21 08:11:06 +00:00
subr_bus.c Fix warnings in preparation for adding -Wall -Wcast-qual to the 1999-01-27 21:50:00 +00:00
subr_clist.c
subr_devstat.c Add a prioritization field to the devstat_add_entry() call so that 1999-02-10 00:04:13 +00:00
subr_disklabel.c
subr_diskmbr.c Fix warnings in preparation for adding -Wall -Wcast-qual to the 1999-01-28 01:59:53 +00:00
subr_diskslice.c
subr_dkbad.c
subr_log.c
subr_module.c
subr_param.c
subr_prf.c
subr_prof.c
subr_rlist.c This module was used only by the old swapper and has been #if'd out, 1999-01-21 08:58:41 +00:00
subr_rman.c Ifdefed conditionally used simplock variables. 1999-01-02 11:34:57 +00:00
subr_scanf.c Only needed to cast array index from char to unsigned char, did not 1999-02-14 20:58:21 +00:00
subr_smp.c The magic "no-cpu" cpu number is 0xff. Don't misrepresent cpu 1999-03-05 16:38:13 +00:00
subr_trap.c Make TIMER_FREQ a normal, undocumented option. Raise confusion to 1999-03-09 20:20:09 +00:00
subr_xxx.c
sys_generic.c Removed a bogus cast to c_caddr_t. This is part of terminating 1999-01-29 08:10:35 +00:00
sys_pipe.c Fix race in pipe read code whereby a blocked lock can allow another 1999-02-04 23:50:49 +00:00
sys_process.c Fix warnings in preparation for adding -Wall -Wcast-qual to the 1999-01-27 21:50:00 +00:00
sys_socket.c Moved prototypes for soo_{read,write,close} into socketvar.h where they 1999-02-01 21:16:31 +00:00
syscalls.c
syscalls.master
sysv_ipc.c Use suser() to determine super-user-ness, don't examine cr_uid directly. 1999-01-30 12:21:49 +00:00
sysv_msg.c Use suser() to determine super-user-ness, don't examine cr_uid directly. 1999-01-30 12:21:49 +00:00
sysv_sem.c
sysv_shm.c This is a rather large commit that encompasses the new swapper, 1999-01-21 08:29:12 +00:00
tty_compat.c
tty_conf.c
tty_cons.c Remove a hard-coded table of kernel console I/O functions exported 1999-01-07 14:14:24 +00:00
tty_pty.c Use suser() to check for super user rather than examining cr_uid directly. 1999-01-30 12:17:38 +00:00
tty_snoop.c Fix warnings in preparation for adding -Wall -Wcast-qual to the 1999-01-27 21:50:00 +00:00
tty_subr.c
tty_tb.c
tty_tty.c
tty.c Introduce machine-dependent macro pgtok() to convert page count to number 1999-02-19 19:34:49 +00:00
uipc_domain.c Minor rearranging of code to allow simple protocol domains to be 1999-01-21 00:26:41 +00:00
uipc_mbuf.c * Change sysctl from using linker_set to construct its tree using SLISTs. 1999-02-16 10:49:55 +00:00
uipc_proto.c * Change sysctl from using linker_set to construct its tree using SLISTs. 1999-02-16 10:49:55 +00:00
uipc_sockbuf.c Port NetBSD's 19990120-accept bug fix. This works around the race condition 1999-01-25 16:58:56 +00:00
uipc_socket2.c Port NetBSD's 19990120-accept bug fix. This works around the race condition 1999-01-25 16:58:56 +00:00
uipc_socket.c * Change sysctl from using linker_set to construct its tree using SLISTs. 1999-02-16 10:49:55 +00:00
uipc_syscalls.c Fix warnings in preparation for adding -Wall -Wcast-qual to the 1999-01-27 21:50:00 +00:00
uipc_usrreq.c * Change sysctl from using linker_set to construct its tree using SLISTs. 1999-02-16 10:49:55 +00:00
vfs_aio.c Added a used #include (don't depend on "vnode_if.h" including <sys/buf.h>). 1999-02-25 15:54:06 +00:00
vfs_bio.c Reviewed by: Many at differnt times in differnt parts, 1999-03-12 02:24:58 +00:00
vfs_cache.c
vfs_cluster.c Reviewed by: Many at differnt times in differnt parts, 1999-03-12 02:24:58 +00:00
vfs_conf.c
vfs_default.c Added a used #include (don't depend on "vnode_if.h" including <sys/buf.h>). 1999-02-25 15:54:06 +00:00
vfs_export.c Reviewed by: Many at differnt times in differnt parts, 1999-03-12 02:24:58 +00:00
vfs_extattr.c Slight cleanup of code resurected for union mounts.. 1999-03-03 02:35:51 +00:00
vfs_init.c * Register sysctl nodes before running sysinits when loading files and 1999-03-07 16:06:41 +00:00
vfs_lookup.c Fix warnings in preparation for adding -Wall -Wcast-qual to the 1999-01-28 00:57:57 +00:00
vfs_mount.c
vfs_subr.c Reviewed by: Many at differnt times in differnt parts, 1999-03-12 02:24:58 +00:00
vfs_syscalls.c Slight cleanup of code resurected for union mounts.. 1999-03-03 02:35:51 +00:00
vfs_vnops.c Use suser() to determine super-user-ness, don't examine cr_uid directly. 1999-01-30 12:21:49 +00:00
vnode_if.pl Declare static __inline functions as __inline in their forward 1999-02-28 11:30:00 +00:00
vnode_if.sh Declare static __inline functions as __inline in their forward 1999-02-28 11:30:00 +00:00
vnode_if.src