[PVFS2-developers] patches: debugging messages

[Phil Carns]

As promised a while back (see 
http://www.beowulf-underground.org/pipermail/pvfs2-developers/2005-June/001297.html), 
here are some patches that clean up some error messages here and there, 
and add more debugging flexibility to the kernel module:

log-msgs.patch:
- fixes bogus messages in lookup.sm and pvfs2-ls.c
- corrects several bmi_tcp messages (error code handling, and choice of 
gossip_err vs. gossip_lerr)

kernel-debugging.patch
- adds version number to load and unload messages
- documents existing hash table size module parameter
- adds new module parameter (debug={1/0}) to turn debugging on or off at 
load time without having to recompile
- adds new proc entry (proc/sys/pvfs2/debug) that allows toggling debug 
messages on or off dynamically while module is loaded
- removes a broken log message

The kernel-debugging.patch adds proc and parameter entries that mirror 
what pvfs1 does.  The only difference is that it doesn't allow 
specification of different levels of debugging, it is either all on or 
all off.  The pvfs2_print() macro in the kernel code isn't devided into 
categories.

I'm not particular about the choice of proc file to use, if anyone has a 
better suggestion- I just duplicated the pvfs1 approach.

-Phil
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