Date: Mon, 7 Feb 2005 04:58:23 +0000 From: Joseph Koshy <joseph.koshy@gmail.com> To: Ashwin Chandra <ashcs@ucla.edu> Cc: freebsd-hackers@freebsd.org Subject: Re: Opening and wriiting to file in Kern Message-ID: <84dead720502062058551f61c2@mail.gmail.com> In-Reply-To: <4206008F.2060100@freebsd.org> References: <001301c50c3e$1a8003b0$58e243a4@ash> <4206008F.2060100@freebsd.org>
next in thread | previous in thread | raw e-mail | index | archive | help
> If you mist do this, the general set of steps are: > > 1. use namei() to convert a pathname to a vnode > 2. Use vn_open(), vn_rdwr(), and vn_close() to operate on the vnode. > 3. Observe proper vnode locking and reference counting with vref(), > vn_lock(), and vput() Take a look at "sys/kern/kern_ktrace.c" or "sys/kern/kern_alq.c" for a template. -- FreeBSD Volunteer, http://people.freebsd.org/~jkoshy
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?84dead720502062058551f61c2>