The following changes since commit b8c7923917200c7c68c84c21549940d4be6b1398:
t/axmap: add longer overlap test case (2018-07-11 15:32:31 -0600)
are available in the git repository at:
git://git.kernel.dk/fio.git master
for you to fetch changes up to edfca254378e729035073af6ac0d9156565afebe:
axmap: optimize ulog64 usage in axmap_handler() (2018-07-12 08:33:14 -0600)
----------------------------------------------------------------
Jens Axboe (1):
axmap: optimize ulog64 usage in axmap_handler()
lib/axmap.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
---
Diff of recent changes:
diff --git a/lib/axmap.c b/lib/axmap.c
index 4047f23..454af0b 100644
--- a/lib/axmap.c
+++ b/lib/axmap.c
@@ -156,10 +156,10 @@ static bool axmap_handler(struct axmap *axmap, uint64_t bit_nr,
void *), void *data)
{
struct axmap_level *al;
+ uint64_t index = bit_nr;
int i;
for (i = 0; i < axmap->nr_levels; i++) {
- unsigned long index = ulog64(bit_nr, i);
unsigned long offset = index >> UNIT_SHIFT;
unsigned int bit = index & BLOCKS_PER_UNIT_MASK;
@@ -167,6 +167,9 @@ static bool axmap_handler(struct axmap *axmap, uint64_t bit_nr,
if (func(al, offset, bit, data))
return true;
+
+ if (index)
+ index >>= UNIT_SHIFT;
}
return false;
--
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