diff options
| author | Mitko Haralanov <mitko.haralanov@intel.com> | 2016-03-08 11:14:42 -0800 |
|---|---|---|
| committer | Doug Ledford <dledford@redhat.com> | 2016-03-21 15:55:21 -0400 |
| commit | 368f2b59d024fbb58015dfd0e09c54c424cda979 (patch) | |
| tree | dfdc65b01c84af2135df971beb6382a7da8db61f /drivers/staging/rdma/hfi1/user_exp_rcv.c | |
| parent | eef9c896a94e715fcf8eb41e98b2469319641c73 (diff) | |
IB/hfi1: Remove the use of add/remove RB function pointers
The usage of function pointers for RB node insertion
and removal in the expected receive code path was
meant to be a small performance optimization. However,
maintaining it, especially with the new MMU API, would
become more troublesome as the API is extended.
Since the performance optimization is minor, remove the
function pointers and replace with direct calls.
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Reviewed-by: Dean Luick <dean.luick@intel.com>
Signed-off-by: Mitko Haralanov <mitko.haralanov@intel.com>
Signed-off-by: Jubin John <jubin.john@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers/staging/rdma/hfi1/user_exp_rcv.c')
| -rw-r--r-- | drivers/staging/rdma/hfi1/user_exp_rcv.c | 25 |
1 files changed, 14 insertions, 11 deletions
diff --git a/drivers/staging/rdma/hfi1/user_exp_rcv.c b/drivers/staging/rdma/hfi1/user_exp_rcv.c index c9e05ddd469f..b0b193f30fac 100644 --- a/drivers/staging/rdma/hfi1/user_exp_rcv.c +++ b/drivers/staging/rdma/hfi1/user_exp_rcv.c @@ -223,14 +223,6 @@ int hfi1_user_exp_rcv_init(struct file *fp) } } - if (HFI1_CAP_IS_USET(TID_UNMAP)) { - fd->mmu_rb_insert = mmu_rb_insert; - fd->mmu_rb_remove = mmu_rb_remove; - } else { - fd->mmu_rb_insert = hfi1_mmu_rb_insert; - fd->mmu_rb_remove = hfi1_mmu_rb_remove; - } - /* * PSM does not have a good way to separate, count, and * effectively enforce a limit on RcvArray entries used by @@ -861,7 +853,10 @@ static int set_rcvarray_entry(struct file *fp, unsigned long vaddr, node->freed = false; memcpy(node->pages, pages, sizeof(struct page *) * npages); - ret = fd->mmu_rb_insert(root, &node->mmu); + if (HFI1_CAP_IS_USET(TID_UNMAP)) + ret = mmu_rb_insert(root, &node->mmu); + else + ret = hfi1_mmu_rb_insert(root, &node->mmu); if (ret) { hfi1_cdbg(TID, "Failed to insert RB node %u 0x%lx, 0x%lx %d", @@ -901,7 +896,10 @@ static int unprogram_rcvarray(struct file *fp, u32 tidinfo, node = fd->entry_to_rb[rcventry]; if (!node || node->rcventry != (uctxt->expected_base + rcventry)) return -EBADF; - fd->mmu_rb_remove(&fd->tid_rb_root, &node->mmu); + if (HFI1_CAP_IS_USET(TID_UNMAP)) + mmu_rb_remove(&fd->tid_rb_root, &node->mmu); + else + hfi1_mmu_rb_remove(&fd->tid_rb_root, &node->mmu); if (grp) *grp = node->grp; @@ -962,7 +960,12 @@ static void unlock_exp_tids(struct hfi1_ctxtdata *uctxt, uctxt->expected_base]; if (!node || node->rcventry != rcventry) continue; - fd->mmu_rb_remove(root, &node->mmu); + if (HFI1_CAP_IS_USET(TID_UNMAP)) + mmu_rb_remove(&fd->tid_rb_root, + &node->mmu); + else + hfi1_mmu_rb_remove(&fd->tid_rb_root, + &node->mmu); clear_tid_node(fd, -1, node); } } |