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authorJens Axboe <axboe@kernel.dk>2018-08-05 19:32:09 -0600
committerJens Axboe <axboe@kernel.dk>2018-08-05 19:32:09 -0600
commit05b9ba4b550ff67d7362608828405f9e389e8988 (patch)
tree12b0f4e41c1491fe5087480d9c47e61aff8a1d33 /arch/x86/events/intel/ds.c
parent704f83928c8e7da6e06144569efb15dec73278e8 (diff)
parentd72e90f33aa4709ebecc5005562f52335e106a60 (diff)
downloadlinux-rt-05b9ba4b550ff67d7362608828405f9e389e8988.tar.gz
Merge tag 'v4.18-rc6' into for-4.19/block2
Pull in 4.18-rc6 to get the NVMe core AEN change to avoid a merge conflict down the line. Signed-of-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'arch/x86/events/intel/ds.c')
-rw-r--r--arch/x86/events/intel/ds.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/arch/x86/events/intel/ds.c b/arch/x86/events/intel/ds.c
index 8a10a045b57b..8cf03f101938 100644
--- a/arch/x86/events/intel/ds.c
+++ b/arch/x86/events/intel/ds.c
@@ -408,9 +408,11 @@ static int alloc_bts_buffer(int cpu)
ds->bts_buffer_base = (unsigned long) cea;
ds_update_cea(cea, buffer, BTS_BUFFER_SIZE, PAGE_KERNEL);
ds->bts_index = ds->bts_buffer_base;
- max = BTS_RECORD_SIZE * (BTS_BUFFER_SIZE / BTS_RECORD_SIZE);
- ds->bts_absolute_maximum = ds->bts_buffer_base + max;
- ds->bts_interrupt_threshold = ds->bts_absolute_maximum - (max / 16);
+ max = BTS_BUFFER_SIZE / BTS_RECORD_SIZE;
+ ds->bts_absolute_maximum = ds->bts_buffer_base +
+ max * BTS_RECORD_SIZE;
+ ds->bts_interrupt_threshold = ds->bts_absolute_maximum -
+ (max / 16) * BTS_RECORD_SIZE;
return 0;
}