Date: Thu, 18 Feb 1999 13:07:06 -0500 From: "AARON MARKS" <amarks@sarnoff.com> To: Doug Rabson <dfr@nlsystems.com> Cc: freebsd-hackers@FreeBSD.ORG, Matthew Dillon <dillon@apollo.backplane.com> Subject: Re: Memory-Based VFS Question Message-ID: <36CC56CA.BCBF6A4B@sarnoff.com> References: <Pine.BSF.4.05.9902180939460.61913-100000@herring.nlsystems.com>
next in thread | previous in thread | raw e-mail | index | archive | help
Doug Rabson wrote:
>
> > I have another question, though: I mapped my _{get,put}pages functions
> > (they're empty, just print to console and return 0) to the vop functions
> > but when I do a system file copy (via cp), the OS never calls my
> > {get,put}pages functions.
>
> Strange. Are they in the table of vnode ops for your filesystem? Try
> setting a breakpoint in the vm code where it is about to call VOP_GETPAGES
> and single step to see where it goes.
Yes, they are in the vnodeopv_entry_desc structure as vop_getpages_desc
and vop_putpages_desc. I stepped through the code and it goes to
ufs_readwrite.c:ffs_getpages(). I also set breakpoints in my
_getpages(), _putpages() functions and they never get called.
-A.
--
Aaron J. Marks Communications and Computing Systems Lab
Assoc. Member Tech Staff Advanced Networks and Computation Group
amarks@sarnoff.com Sarnoff Corporation
To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-hackers" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?36CC56CA.BCBF6A4B>