drivers/infiniband/hw/mthca/mthca_allocator.c: alloc->last left unchanged in mthca_alloc, which
has impact on performance of function find_next_zero_bit in mthca_alloc.
Signed-off-by: kangning <kangning18z@xxxxxxxxx>
---
I squashed two commits into one in this version.
drivers/infiniband/hw/mthca/mthca_allocator.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/infiniband/hw/mthca/mthca_allocator.c b/drivers/infiniband/hw/mthca/mthca_allocator.c
index aef1d274a14e..1141695093e7 100644
--- a/drivers/infiniband/hw/mthca/mthca_allocator.c
+++ b/drivers/infiniband/hw/mthca/mthca_allocator.c
@@ -51,6 +51,9 @@ u32 mthca_alloc(struct mthca_alloc *alloc)
}
if (obj < alloc->max) {
+ alloc->last = obj + 1;
+ if (alloc->last == alloc->max)
+ alloc->last = 0;
set_bit(obj, alloc->table);
obj |= alloc->top;
} else
--
2.17.1
