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| author | Rasmus Villemoes <linux@rasmusvillemoes.dk> | 2019-05-15 00:42:43 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2019-05-15 04:52:49 +0200 |
| commit | cdc90a1871d6e64080f4506e900c6ef88e6fb39f (patch) | |
| tree | f37b1888fd3fd310225101cc4d148d23e2191d0c /lib/plist.c | |
| parent | lib/bitmap.c: remove unused EXPORT_SYMBOLs (diff) | |
| download | linux-cdc90a1871d6e64080f4506e900c6ef88e6fb39f.tar.xz linux-cdc90a1871d6e64080f4506e900c6ef88e6fb39f.zip | |
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>
Diffstat (limited to 'lib/plist.c')
0 files changed, 0 insertions, 0 deletions