diff options
| author |   Wei Yang <richard.weiyang@linux.alibaba.com> | 2020-10-13 16:54:04 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2020-10-13 18:38:31 -0700 |
| commit | 808fbdbea05f1e965da5b887d808025ba22c1946 (patch) | |
| tree | 9747f34858417c3cdbeb1188020e3820f55f63e0 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | mm/memory.c: fix spello of "function" (diff) | |
| download | wireguard-linux-808fbdbea05f1e965da5b887d808025ba22c1946.tar.xz wireguard-linux-808fbdbea05f1e965da5b887d808025ba22c1946.zip | |
mm/mmap: not necessary to check mapping separately
*root* with type of struct rb_root_cached is an element of *mapping*
with type of struct address_space. This implies when we have a valid
*root* it must be a part of valid *mapping*.
So we can merge these two checks together to make the code more easy to
read and to save some cpu cycles.
Signed-off-by: Wei Yang <richard.weiyang@linux.alibaba.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Link: https://lkml.kernel.org/r/20200913133631.37781-1-richard.weiyang@linux.alibaba.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions