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| author | Nikolay Borisov <nborisov@suse.com> | 2017-07-10 15:49:35 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-07-10 16:32:32 -0700 |
| commit | e3d3910a57ab9c70cddb2522ae711ff9bff89e7c (patch) | |
| tree | f2cf3cfe2f3beea8840e918501568de106ccff2a /mm/memory_hotplug.c | |
| parent | 618b8c20d03c9ea06711bd36d906322ba35c0add (diff) | |
| download | linux-e3d3910a57ab9c70cddb2522ae711ff9bff89e7c.tar.gz linux-e3d3910a57ab9c70cddb2522ae711ff9bff89e7c.tar.bz2 linux-e3d3910a57ab9c70cddb2522ae711ff9bff89e7c.zip | |
include/linux/backing-dev.h: simplify wb_stat_sum
wb_stat_sum() disables interrupts and calls __wb_stat_sum() which
eventually calls __percpu_counter_sum(). However, the percpu routine is
already irq-safe. Simplify the code a bit by making wb_stat_sum()
directly call percpu_counter_sum_positive() and not disable interrupts.
Also remove the now-uneeded __wb_stat_sum() which was just a wrapper
over percpu_counter_sum_positive().
Link: http://lkml.kernel.org/r/1498230681-29103-1-git-send-email-nborisov@suse.com
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Cc: Tejun Heo <tj@kernel.org>
Cc: Jan Kara <jack@suse.cz>
Cc: Jens Axboe <axboe@fb.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/memory_hotplug.c')
0 files changed, 0 insertions, 0 deletions