Coda File System

Coda Kernel Module v6.2

From: Patrick Walsh <>
Date: Thu, 29 Sep 2005 12:43:15 -0600
	I finally made some time to upgrade coda from 6.0.11 to 6.0.12 and the
kernel module from 6.1 to 6.2.   

	I'm building the 6.2 version of the coda module against a Redhat AS3
kernel (a patched 2.4.21 kernel).  upcall.c has some new functions:
block_signals and unblock_signals.  These make use of
&current->sigmask_lock.  For some reason that I can't make out, redhat
has patched sigmask_lock out of the kernel.  It is replaced with
sighand->siglock.  Patching upcall.c to change each occurrence got me to
the next stumbling block.

	upcall.c:672: structure has no member named `uc_posttime'

	This line refers to the upc_req structure, which doesn't have

	It seemed to me (and please check me on this) that uc_posttime was only
ever used in a debug function.  So I deleted all references to it.  And
that got me to the next problem.

upcall.c: In function `block_signals':
upcall.c:642: too many arguments to function
upcall.c: In function `unblock_signals':
upcall.c:650: too many arguments to function
upcall.c: In function `coda_upcall':
upcall.c:791: too many arguments to function `coda_waitfor_upcall'

	To fix the second error I changed this line:

runtime = coda_waitfor_upcall(req, vcommp);


runtime = coda_waitfor_upcall(req);

	but since I don't understand what it was meant to do, I'm very worried
that I might have broken something.  

	Finally, it appears that recalc_sigpending doesn't take an argument (I
guess it assumes &current).  I don't know if this is redhat specific or

	I've attached the patch file that I needed to get everything to build.
I've also attached the spec file I used to create an rpm.  I haven't
installed or tested the rpm yet pending word on the my patches.

	And updating the rest of coda is going to have to wait a little bit


Patrick Walsh
eSoft Incorporated
303.444.1600 x3350

Received on 2005-09-29 14:51:09