diff options
| author | Dean Luick <dean.luick@intel.com> | 2016-07-28 22:21:21 +0300 |
|---|---|---|
| committer | Doug Ledford <dledford@redhat.com> | 2016-08-03 05:46:21 +0300 |
| commit | 622c202c4a4697636334761d7ca295ebd35074e4 (patch) | |
| tree | 16e3c5e172bcd85b95ca30eeadd168f7e3ab5ef0 /drivers/infiniband/hw/hfi1/file_ops.c | |
| parent | e0b09ac55d51bb9bf6a4a320bf4029e40bdabd6c (diff) | |
| download | linux-622c202c4a4697636334761d7ca295ebd35074e4.tar.xz | |
IB/hfi1: Fix TID caching actions
Per file descriptor TID caching actions depend on a global that can
change midway through the lifetime of that file descriptor.
Make the use of caching consistent for the life of the file descriptor
by using the presence of the cache handler to decide when to use the cache
functions.
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Dean Luick <dean.luick@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers/infiniband/hw/hfi1/file_ops.c')
| -rw-r--r-- | drivers/infiniband/hw/hfi1/file_ops.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/hfi1/file_ops.c b/drivers/infiniband/hw/hfi1/file_ops.c index 302f0cdd8119..4f39bffad74a 100644 --- a/drivers/infiniband/hw/hfi1/file_ops.c +++ b/drivers/infiniband/hw/hfi1/file_ops.c @@ -1132,6 +1132,10 @@ static int get_ctxt_info(struct file *fp, void __user *ubase, __u32 len) HFI1_CAP_MISC_MASK) << HFI1_CAP_USER_SHIFT) | HFI1_CAP_UGET_MASK(uctxt->flags, MASK) | HFI1_CAP_KGET_MASK(uctxt->flags, K2U); + /* adjust flag if this fd is not able to cache */ + if (!fd->handler) + cinfo.runtime_flags |= HFI1_CAP_TID_UNMAP; /* no caching */ + cinfo.num_active = hfi1_count_active_units(); cinfo.unit = uctxt->dd->unit; cinfo.ctxt = uctxt->ctxt; |