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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2015-05-18 14:08:58 -0700
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2015-05-18 14:08:58 -0700
commit02730d3c053a9af1d402e1c8dc8bbbc5a1340406 (patch)
treedb289a08de50eb4b5caf7840d5b7356ddfa1c51f /mm/page-writeback.c
parent77232f791e0605521a978cbe7f79a93df24df374 (diff)
parente26081808edadfd257c6c9d81014e3b25e9a6118 (diff)
downloadlwn-02730d3c053a9af1d402e1c8dc8bbbc5a1340406.tar.gz
lwn-02730d3c053a9af1d402e1c8dc8bbbc5a1340406.zip
Merge 4.1-rc4 into tty-next
This resolves some tty driver merge issues. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'mm/page-writeback.c')
-rw-r--r--mm/page-writeback.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/mm/page-writeback.c b/mm/page-writeback.c
index 5daf5568b9e1..eb59f7eea508 100644
--- a/mm/page-writeback.c
+++ b/mm/page-writeback.c
@@ -580,7 +580,7 @@ static long long pos_ratio_polynom(unsigned long setpoint,
long x;
x = div64_s64(((s64)setpoint - (s64)dirty) << RATELIMIT_CALC_SHIFT,
- limit - setpoint + 1);
+ (limit - setpoint) | 1);
pos_ratio = x;
pos_ratio = pos_ratio * x >> RATELIMIT_CALC_SHIFT;
pos_ratio = pos_ratio * x >> RATELIMIT_CALC_SHIFT;
@@ -807,7 +807,7 @@ static unsigned long bdi_position_ratio(struct backing_dev_info *bdi,
* scale global setpoint to bdi's:
* bdi_setpoint = setpoint * bdi_thresh / thresh
*/
- x = div_u64((u64)bdi_thresh << 16, thresh + 1);
+ x = div_u64((u64)bdi_thresh << 16, thresh | 1);
bdi_setpoint = setpoint * (u64)x >> 16;
/*
* Use span=(8*write_bw) in single bdi case as indicated by
@@ -822,7 +822,7 @@ static unsigned long bdi_position_ratio(struct backing_dev_info *bdi,
if (bdi_dirty < x_intercept - span / 4) {
pos_ratio = div64_u64(pos_ratio * (x_intercept - bdi_dirty),
- x_intercept - bdi_setpoint + 1);
+ (x_intercept - bdi_setpoint) | 1);
} else
pos_ratio /= 4;