Files
linux/lib
Rasmus Villemoes cdc90a1871 lib/bitmap.c: guard exotic bitmap functions by CONFIG_NUMA
The bitmap_remap, _bitremap, _onto and _fold functions are only used,
via their node_ wrappers, in mm/mempolicy.c, which is only built for
CONFIG_NUMA.  The helper bitmap_ord_to_pos used by these functions is
global, but its only external caller is node_random() in lib/nodemask.c,
which is also guarded by CONFIG_NUMA.

For !CONFIG_NUMA:

add/remove: 0/6 grow/shrink: 0/0 up/down: 0/-621 (-621)
Function                                     old     new   delta
bitmap_pos_to_ord                             20       -     -20
bitmap_ord_to_pos                             70       -     -70
bitmap_bitremap                               81       -     -81
bitmap_fold                                  113       -    -113
bitmap_onto                                  123       -    -123
bitmap_remap                                 214       -    -214
Total: Before=4776, After=4155, chg -13.00%

Link: http://lkml.kernel.org/r/20190329205353.6010-2-linux@rasmusvillemoes.dk
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Cc: Andy Shevchenko <andy.shevchenko@gmail.com>
Cc: Yury Norov <yury.norov@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-05-14 19:52:49 -07:00
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