[PATCH RFC 0/3] mm/gup: consistently call it GUP-fast

[David Hildenbrand]

Some cleanups around function names, comments and the config option of
"GUP-fast" -- GUP without "lock" safety belts on.

With this cleanup it's easy to judge which functions are GUP-fast specific.
We now consistently call it "GUP-fast", avoiding mixing it with "fast GUP",
"lockless", or simply "gup" (which I always considered confusing in the
ode).

So the magic now happens in functions that contain "gup_fast", whereby
gup_fast() is the entry point into that magic. Comments consistently
reference either "GUP-fast" or "gup_fast()".

Based on mm-unstable from today. I won't CC arch maintainers, but only
arch mailing lists, to reduce noise.

Tested on x86_64, cross compiled on a bunch of archs, whereby some of them
don't properly even compile on mm-unstable anymore in my usual setup
(alpha, arc, parisc64, sh) ... maybe the cross compilers are outdated,
but there are no new ones around. Hm.

Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Cc: Mike Rapoport (IBM) <rppt@xxxxxxxxxx>
Cc: Jason Gunthorpe <jgg@xxxxxxxxxx>
Cc: John Hubbard <jhubbard@xxxxxxxxxx>
Cc: Peter Xu <peterx@xxxxxxxxxx>
Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx
Cc: linux-kernel@xxxxxxxxxxxxxxx
Cc: loongarch@xxxxxxxxxxxxxxx
Cc: linux-mips@xxxxxxxxxxxxxxx
Cc: linuxppc-dev@xxxxxxxxxxxxxxxx
Cc: linux-s390@xxxxxxxxxxxxxxx
Cc: linux-sh@xxxxxxxxxxxxxxx
Cc: linux-mm@xxxxxxxxx
Cc: linux-perf-users@xxxxxxxxxxxxxxx
Cc: linux-fsdevel@xxxxxxxxxxxxxxx
Cc: x86@xxxxxxxxxx

David Hildenbrand (3):
  mm/gup: consistently name GUP-fast functions
  mm/treewide: rename CONFIG_HAVE_FAST_GUP to CONFIG_HAVE_GUP_FAST
  mm: use "GUP-fast" instead "fast GUP" in remaining comments

 arch/arm/Kconfig       |   2 +-
 arch/arm64/Kconfig     |   2 +-
 arch/loongarch/Kconfig |   2 +-
 arch/mips/Kconfig      |   2 +-
 arch/powerpc/Kconfig   |   2 +-
 arch/s390/Kconfig      |   2 +-
 arch/sh/Kconfig        |   2 +-
 arch/x86/Kconfig       |   2 +-
 include/linux/rmap.h   |   8 +-
 kernel/events/core.c   |   4 +-
 mm/Kconfig             |   2 +-
 mm/filemap.c           |   2 +-
 mm/gup.c               | 170 +++++++++++++++++++++--------------------
 mm/internal.h          |   2 +-
 mm/khugepaged.c        |   2 +-
 15 files changed, 105 insertions(+), 101 deletions(-)

-- 
2.43.2