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mm/page-writeback.c: use min3/max3 macros to avoid shadow warnings

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Nested calls to min/max functions result in shadow warnings in W=2 builds.
 Avoid the warning by using the min3 and max3 macros to get the min/max of
3 values instead of nested calls.

Signed-off-by: Mark Rustad <mark.d.rustad@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Mark Rustad 2014-10-09 15:28:15 -07:00 committed by Linus Torvalds
parent 7ade3c9972
commit 7c809968ff
1 changed files with 4 additions and 4 deletions
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mm/page-writeback.c
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@ -1075,13 +1075,13 @@ static void bdi_update_dirty_ratelimit(struct backing_dev_info *bdi,
}
if (dirty < setpoint) {
x = min(bdi->balanced_dirty_ratelimit,
min(balanced_dirty_ratelimit, task_ratelimit));
x = min3(bdi->balanced_dirty_ratelimit,
balanced_dirty_ratelimit, task_ratelimit);
if (dirty_ratelimit < x)
step = x - dirty_ratelimit;
} else {
x = max(bdi->balanced_dirty_ratelimit,
max(balanced_dirty_ratelimit, task_ratelimit));
x = max3(bdi->balanced_dirty_ratelimit,
balanced_dirty_ratelimit, task_ratelimit);
if (dirty_ratelimit > x)
step = dirty_ratelimit - x;
}