Date: Mon, 6 May 2002 12:31:29 -0700 (PDT) From: Alfred Perlstein <alfred@FreeBSD.org> To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/dev/drm drm_drv.h src/sys/kern kern_descrip.c kern_exit.c kern_proc.c subr_log.c subr_witness.c sys_pipe.c tty.c uipc_socket.c src/sys/net bpf.c if_tap.c if_tun.c src/sys/sys filedesc.h Message-ID: <200205061931.g46JVTG09139@freefall.freebsd.org>
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alfred 2002/05/06 12:31:29 PDT
Modified files:
sys/dev/drm drm_drv.h
sys/kern kern_descrip.c kern_exit.c kern_proc.c
subr_log.c subr_witness.c sys_pipe.c
tty.c uipc_socket.c
sys/net bpf.c if_tap.c if_tun.c
sys/sys filedesc.h
Log:
Make funsetown() take a 'struct sigio **' so that the locking can
be done internally.
Ensure that no one can fsetown() to a dying process/pgrp. We need
to check the process for P_WEXIT to see if it's exiting. Process
groups are already safe because there is no such thing as a pgrp
zombie, therefore the proctree lock completely protects the pgrp
from having sigio structures associated with it after it runs
funsetownlst.
Add sigio lock to witness list under proctree and allproc, but over
proc and pgrp.
Seigo Tanimura helped with this.
Revision Changes Path
1.4 +1 -1 src/sys/dev/drm/drm_drv.h
1.145 +45 -26 src/sys/kern/kern_descrip.c
1.164 +0 -4 src/sys/kern/kern_exit.c
1.134 +1 -4 src/sys/kern/kern_proc.c
1.48 +1 -1 src/sys/kern/subr_log.c
1.114 +1 -0 src/sys/kern/subr_witness.c
1.106 +1 -1 src/sys/kern/sys_pipe.c
1.174 +1 -1 src/sys/kern/tty.c
1.118 +1 -1 src/sys/kern/uipc_socket.c
1.92 +1 -1 src/sys/net/bpf.c
1.19 +1 -1 src/sys/net/if_tap.c
1.106 +1 -1 src/sys/net/if_tun.c
1.44 +1 -1 src/sys/sys/filedesc.h
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