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| author | James Morris <james.morris@microsoft.com> | 2018-03-23 08:26:16 +1100 |
|---|---|---|
| committer | James Morris <james.morris@microsoft.com> | 2018-03-23 08:26:16 +1100 |
| commit | 5893ed18a26d1f56b97c0290b0cbbc2d49d6de28 (patch) | |
| tree | 97aa931519fca28a0a12fad7485347198f8267cc /drivers/infiniband/sw/rdmavt/mr.c | |
| parent | 7bd698b3c04e61ee9e03d4c2a55003f75df14dca (diff) | |
| parent | c698ca5278934c0ae32297a8725ced2e27585d7f (diff) | |
Merge tag 'v4.16-rc6' into next-general
Merge to Linux 4.16-rc6 at the request of Jarkko, for his TPM updates.
Diffstat (limited to 'drivers/infiniband/sw/rdmavt/mr.c')
| -rw-r--r-- | drivers/infiniband/sw/rdmavt/mr.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/infiniband/sw/rdmavt/mr.c b/drivers/infiniband/sw/rdmavt/mr.c index 1b2e5362a3ff..cc429b567d0a 100644 --- a/drivers/infiniband/sw/rdmavt/mr.c +++ b/drivers/infiniband/sw/rdmavt/mr.c @@ -489,11 +489,13 @@ static int rvt_check_refs(struct rvt_mregion *mr, const char *t) unsigned long timeout; struct rvt_dev_info *rdi = ib_to_rvt(mr->pd->device); - if (percpu_ref_is_zero(&mr->refcount)) - return 0; - /* avoid dma mr */ - if (mr->lkey) + if (mr->lkey) { + /* avoid dma mr */ rvt_dereg_clean_qps(mr); + /* @mr was indexed on rcu protected @lkey_table */ + synchronize_rcu(); + } + timeout = wait_for_completion_timeout(&mr->comp, 5 * HZ); if (!timeout) { rvt_pr_err(rdi, |