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NetBSD/sys/kern
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sommerfe 36dc99adac vinvalbuf, called from vclean, could cause a locking-against-self 
deadlock in VOP_FSYNC() if the unreferenced vnode picked for
reclamation happened to be stacked on top of a vnode the process
already had locked.  This could happen if the same filesystem was
accessed both through a union mount and directly; it seemed to happen
most frequently when the direct access was through NFS.

Avoid this deadlock by changing vinvalbuf to pass a new FSYNC_RECLAIM
flag bit to VOP_FSYNC() to indicate that a reclaim is in progress and
only a `shallow' fsync is necessary.

Do nothing in *_fsync() in umapfs, nullfs, and unionfs when
FSYNC_RECLAIM is set; the underlying vnodes will shortly be released
in *_reclaim and may be reclaimed (and fsync'ed) later.
 		1999-03-22 17:24:19 +00:00
..
Make.tags.inc Protect the COMM variable with an '.ifmake tags' to stop the long delay 1999-02-12 19:52:30 +00:00
Makefile (mostly) fix kernel tags support. from Frederick Bruckman in pr-6445. 1998-11-15 20:36:30 +00:00
exec_aout.c
…
exec_conf.c Defopt COMPAT_M68K4K. 1999-03-09 21:02:38 +00:00
exec_ecoff.c
…
exec_elf32.c Use of casts as lvalues is a GNU C extension; rearrange slightly. 1999-02-10 17:03:26 +00:00
exec_elf64.c
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exec_elf_common.c update for linux file move. 1998-10-03 20:39:32 +00:00
exec_script.c Modify VOP_CLOSE vnode op to always take a locked vnode. Change vn_close 1999-02-26 23:38:55 +00:00
exec_subr.c Abolition of bcopy, ovbcopy, bcmp, and bzero, phase one. 1998-08-04 04:03:10 +00:00
genassym.awk Allow pattern matching for symbol string to handle GCC's output for mips, 1998-11-25 06:10:19 +00:00
genassym.sh new command "config" to set type (for c), constraint and printmodifier. 1998-04-25 19:48:27 +00:00
init_main.c This is sort of gratuitous, but... 1999-03-05 07:26:21 +00:00
init_sysent.c Regen files based on changes to syscalls.master, vnode_if.src (latter 1999-03-22 17:13:34 +00:00
kern_acct.c Abolition of bcopy, ovbcopy, bcmp, and bzero, phase one. 1998-08-04 04:03:10 +00:00
kern_clock.c schedclk() -> schedclock(), for consistency with hardclock(), statclock(), ... 1999-02-28 18:14:57 +00:00
kern_descrip.c Use the pool allocator and "nointr" pool page allocator for file structures. 1998-08-31 23:55:37 +00:00
kern_exec.c Modify VOP_CLOSE vnode op to always take a locked vnode. Change vn_close 1999-02-26 23:38:55 +00:00
kern_exit.c Replace the recent scheduler mods with calls to scheduler_{fork,wait}_hook(), 1999-02-23 02:57:18 +00:00
kern_fork.c Replace the recent scheduler mods with calls to scheduler_{fork,wait}_hook(), 1999-02-23 02:57:18 +00:00
kern_fthread.c
…
kern_kthread.c #ifdef __STDC__ -> #if __STDC__ 1998-12-22 21:21:36 +00:00
kern_ktrace.c Substantial signal handling changes: 1998-09-11 12:50:05 +00:00
kern_lkm.c Fix format mismatch which only turns up when building with DEBUG 1999-01-15 22:02:59 +00:00
kern_lock.c Recursive locks were previously only available with LK_CANRECURSE. This 1999-02-28 14:09:15 +00:00
kern_malloc.c avoid math on void *. 1999-01-22 07:55:49 +00:00
kern_ntptime.c fix sizeofs so they comply with the KNF style guide. yes, it is pedantic. 1998-07-31 22:50:48 +00:00
kern_physio.c Use of casts as lvalues is a GNU C extension; rearrange slightly. 1999-02-10 17:03:26 +00:00
kern_proc.c - Add a new proclist, deadproc, which holds dead-but-not-yet-zombie 1998-09-08 23:47:49 +00:00
kern_prot.c COMPAT_xxx option review: add missing opt_compat_linux.h 1998-12-18 14:10:06 +00:00
kern_resource.c Use the pool allocator and "nointr" pool page allocator for pcred and 1998-08-31 23:53:19 +00:00
kern_sig.c Don't forget to lower the spl in the error case of sigprocmask 1999-02-13 15:25:51 +00:00
kern_subr.c Use of casts as lvalues is a GNU C extension; rearrange slightly. 1999-02-10 17:03:26 +00:00
kern_synch.c schedclk() -> schedclock(), for consistency with hardclock(), statclock(), ... 1999-02-28 18:14:57 +00:00
kern_sysctl.c Defopt SYSVMSG, SYSVSEM and SYSVSHM. 1998-10-19 22:19:26 +00:00
kern_time.c Add some braces to make egcs happy (ambiguous else warning). 1998-08-18 06:27:01 +00:00
kern_xxx.c
…
kgdb_stub.c Fix a few comment tyops, kill an inaccurate comment, and 1998-08-30 20:30:57 +00:00
makesyscalls.sh Now that shell has been fixed so that ". filename" does not look at . if . 1999-02-17 18:17:10 +00:00
subr_autoconf.c Enable `device_register()' for the sparc. 1998-12-03 23:50:11 +00:00
subr_disk.c PR kern/7033 (Izumi Tsutsui <tsutsui@ceres.dti.ne.jp>): use 1999-02-22 16:00:01 +00:00
subr_extent.c Fix a thinko in the previous. 1999-02-18 18:52:29 +00:00
subr_log.c Add some braces to make egcs happy (ambiguous else warning). 1998-08-18 06:27:01 +00:00
subr_pool.c Make this compile with POOL_DIAGNOSTIC, and add a POOL_LOGSIZE option. 1998-12-27 21:13:43 +00:00
subr_prf.c Fix some printf format problems on Alpha. 1999-02-12 00:46:11 +00:00
subr_prof.c Abolition of bcopy, ovbcopy, bcmp, and bzero, phase one. 1998-08-04 04:03:10 +00:00
subr_rmap.c Back out previous. 1998-08-18 18:16:30 +00:00
subr_xxx.c
…
sys_generic.c Abolition of bcopy, ovbcopy, bcmp, and bzero, phase one. 1998-08-04 04:03:10 +00:00
sys_process.c
…
sys_socket.c Abolition of bcopy, ovbcopy, bcmp, and bzero, phase one. 1998-08-04 04:03:10 +00:00
syscalls.c Regen files based on changes to syscalls.master, vnode_if.src (latter 1999-03-22 17:13:34 +00:00
syscalls.conf
…
syscalls.master Change namei cache to record vnode->(parent,name) entries (for directories). 1999-03-22 17:01:55 +00:00
sysv_ipc.c Make copyrights consistent; fix weird/trailing spaces add missing (c) etc. 1998-09-12 17:20:02 +00:00
sysv_msg.c No need to get definition of "SYSV..." from "opt_sysv.h" because they 1998-10-21 22:24:28 +00:00
sysv_sem.c No need to get definition of "SYSV..." from "opt_sysv.h" because they 1998-10-21 22:24:28 +00:00
sysv_shm.c No need to get definition of "SYSV..." from "opt_sysv.h" because they 1998-10-21 22:24:28 +00:00
tty.c Substantial signal handling changes: 1998-09-11 12:50:05 +00:00
tty_conf.c defopt COMPAT_43 1998-12-10 15:07:01 +00:00
tty_pty.c Substantial signal handling changes: 1998-09-11 12:50:05 +00:00
tty_subr.c Abolition of bcopy, ovbcopy, bcmp, and bzero, phase one. 1998-08-04 04:03:10 +00:00
tty_tb.c Abolition of bcopy, ovbcopy, bcmp, and bzero, phase one. 1998-08-04 04:03:10 +00:00
tty_tty.c
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uipc_domain.c Garbage-collect some straggling netimp stuff. 1999-01-14 01:14:01 +00:00
uipc_mbuf.c Garbage-collect `mbutl'. 1999-01-09 22:10:12 +00:00
uipc_proto.c use AF_LOCAL instead of AF_UNIX 1998-07-18 05:04:35 +00:00
uipc_socket.c Do remove sockets on so_q0, since select(2) and accept(2) do not (currently?) 1999-01-21 22:09:10 +00:00
uipc_socket2.c Do not remove sockets from the accept(2) queue on close. 1999-01-20 09:15:41 +00:00
uipc_syscalls.c * Due to addition and use of socklen_t, make the socket option and address 1999-02-10 18:02:28 +00:00
uipc_usrreq.c In unp_internalize(), add a comment explaining why we must ALIGN() the 1998-12-21 23:12:19 +00:00
vfs_bio.c GC the B_CACHE bit. 1998-11-09 01:18:34 +00:00
vfs_cache.c Change namei cache to record vnode->(parent,name) entries (for directories). 1999-03-22 17:01:55 +00:00
vfs_cluster.c Rework cluster_rbuild() to use buffers with the file system block size. 1998-11-08 18:18:31 +00:00
vfs_getcwd.c Change namei cache to record vnode->(parent,name) entries (for directories). 1999-03-22 17:01:55 +00:00
vfs_init.c Abolition of bcopy, ovbcopy, bcmp, and bzero, phase one. 1998-08-04 04:03:10 +00:00
vfs_lockf.c Abolition of bcopy, ovbcopy, bcmp, and bzero, phase one. 1998-08-04 04:03:10 +00:00
vfs_lookup.c Abolition of bcopy, ovbcopy, bcmp, and bzero, phase one. 1998-08-04 04:03:10 +00:00
vfs_subr.c vinvalbuf, called from vclean, could cause a locking-against-self 1999-03-22 17:24:19 +00:00
vfs_syscalls.c Regen files based on changes to syscalls.master, vnode_if.src (latter 1999-03-22 17:13:34 +00:00
vfs_vnops.c Modify VOP_CLOSE vnode op to always take a locked vnode. Change vn_close 1999-02-26 23:38:55 +00:00
vnode_if.c Regen files based on changes to syscalls.master, vnode_if.src (latter 1999-03-22 17:13:34 +00:00
vnode_if.sh Quote the backquotes in the double-quoted shell string, otherwise they 1998-09-13 14:44:34 +00:00
vnode_if.src Include some comments with more details on the VOP_LOOKUP locking protocol 1999-03-22 16:57:37 +00:00