Date: Wed, 2 Oct 2002 19:13:00 -0700 (PDT) From: Don Lewis <truckman@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 subr_log.c sys_pipe.c sys_socket.c tty.c uipc_syscalls.c src/sys/net bpf.c if_tap.c if_tun.c src/sys/sys filedesc.h Message-ID: <200210030213.g932D0XA064181@freefall.freebsd.org>
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truckman 2002/10/02 19:13:00 PDT
Modified files:
sys/dev/drm drm_drv.h
sys/kern kern_descrip.c subr_log.c sys_pipe.c
sys_socket.c tty.c uipc_syscalls.c
sys/net bpf.c if_tap.c if_tun.c
sys/sys filedesc.h
Log:
In an SMP environment post-Giant it is no longer safe to blindly
dereference the struct sigio pointer without any locking. Change
fgetown() to take a reference to the pointer instead of a copy of the
pointer and call SIGIO_LOCK() before copying the pointer and
dereferencing it.
Reviewed by: rwatson
Revision Changes Path
1.7 +1 -1 src/sys/dev/drm/drm_drv.h
1.162 +8 -3 src/sys/kern/kern_descrip.c
1.50 +2 -2 src/sys/kern/subr_log.c
1.121 +2 -2 src/sys/kern/sys_pipe.c
1.45 +2 -2 src/sys/kern/sys_socket.c
1.190 +1 -1 src/sys/kern/tty.c
1.131 +4 -2 src/sys/kern/uipc_syscalls.c
1.99 +2 -2 src/sys/net/bpf.c
1.21 +2 -2 src/sys/net/if_tap.c
1.108 +2 -2 src/sys/net/if_tun.c
1.46 +1 -1 src/sys/sys/filedesc.h
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