[PATCH] locking/atomics: Clean up the atomic.h maze of #defines

[Peter Zijlstra]

On Sat, May 05, 2018 at 11:09:03AM +0200, Ingo Molnar wrote:
> > >  # ifndef atomic_fetch_dec_acquire
> > >  #  define atomic_fetch_dec_acquire(...)	__atomic_op_acquire(atomic_fetch_dec, __VA_ARGS__)
> > >  # endif
> > >  # ifndef atomic_fetch_dec_release
> > >  #  define atomic_fetch_dec_release(...)	__atomic_op_release(atomic_fetch_dec, __VA_ARGS__)
> > >  # endif
> > >  # ifndef atomic_fetch_dec
> > >  #  define atomic_fetch_dec(...)		__atomic_op_fence(atomic_fetch_dec, __VA_ARGS__)
> > >  # endif
> > >  #endif
> > > 
> > > The new variant is readable at a glance, and the hierarchy of defines is very 
> > > obvious as well.
> > 
> > It wraps and looks hideous in my normal setup. And I do detest that indent
> > after # thing.
> 
> You should use wider terminals if you take a look at such code - there's already 
> numerous areas of the kernel that are not readable on 80x25 terminals.
> 
> _Please_ try the following experiment, for me:
> 
> Enter the 21st century temporarily and widen two of your terminals from 80 cols to 
> 100 cols - it's only ~20% wider.

Doesn't work that way. The only way I get more columns is if I shrink my
font further. I work with tiles per monitor (left/right obv.) and use
two columns per editor. This gets me a total of 4 columns.

On my desktop that is slightly over 100 characters per column, on my
laptop that is slightly below 100 -- mostly because I'm pixel limited on
fontsize on that thing (FullHD sucks).

If it wraps it wraps.