Comment filtering

2.6.32.x has actually been by far my least problematic kernel series in
ages. 2.6.31 had e1000e flow control lossage for me, and a couple of
oopses, rapidly fixed; 2.6.30 had e1000e 82574L jumbo frame lossage and a
single unreproducible incident of massive ext4 filesystem corruption (well
I say 'massive' but fsck fixed it completely: it just took it half an hour
of flooding messages across the screen). 2.6.32 has had nothing wrong at
all, other than an obscure and hard-to-track-down intel-hda ALSA bug,
exhibited only by PulseAudio complaints.

... or, rather, the only wrong thing is an explosion of almost totally
idle ext4 direct I/O kernel threads: one per CPU per sb. That's 96 or
something on my machine. I only want direct I/O for *one filesystem*
dammit!