CVS commit: src/sys/dev/filemon

["Simon J. Gerraty" <sjg%netbsd.org@localhost>]

Module Name:    src
Committed By:   sjg
Date:           Mon Nov 19 22:20:10 UTC 2012

Modified Files:
        src/sys/dev/filemon: filemon.c filemon.h filemon_wrapper.c

Log Message:
filemon_pid_check:
Avoid recursion, and hold a reader lock on p_reflock while we
check for filemon, and until we have p_pptr.

filemon_ioctl:
Do not allow FILEMON_SET_PID unless caller would be allowed
to ptrace the target pid.

filemon_wrapper_deinstall:
Do not touch syscalls if they no longer point to us, return EBUSY.

filemon_unload:
return EBUSY if filemon_wrapper_deinstall() fails.


To generate a diff of this commit:
cvs rdiff -u -r1.4 -r1.5 src/sys/dev/filemon/filemon.c
cvs rdiff -u -r1.3 -r1.4 src/sys/dev/filemon/filemon.h \
    src/sys/dev/filemon/filemon_wrapper.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.