[linux-cifs-client] cifs version 1.26 test version for 2.6.8 or later kernels

[Steven French]

My worry would be if there are many scenarios in which large file copy 
causes huge spike in cache memory (cifs inode data cached in page cache), 
then competing memory requests cause write back of page cache which gets 
blocked on the memory request which is in turn blocked on the write back 
of the page cache.  Linux can be very aggressive in caching.

I was able to reproduce some interesting problems when repeating VERY 
large writes (perhaps 100MB or more for each write) in parallel to 
multiple files to samba server on the same box (which probably won't 
reliably work in loopback without changes to writepage itself or 
cifs_writepage or alternatively moving part of smbd to kernel)


Steve French
Senior Software Engineer
Linux Technology Center - IBM Austin
phone: 512-838-2294
email: sfrench at-sign us dot ibm dot com
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