| commit | 8c75593c6eee0f661ddf25dfde0e6ad2a84be7a9 | [log] [tgz] |
|---|---|---|
| author | Trond Myklebust <trondmy@gmail.com> | Thu Feb 13 14:51:06 2020 -0500 |
| committer | Anna Schumaker <Anna.Schumaker@Netapp.com> | Thu Feb 13 16:18:50 2020 -0500 |
| tree | b4af6d59d60f5e555082220cdde1798610e5dff9 | |
| parent | cd1b659d8ce7697ee9799b64f887528315b9097b [diff] |
NFSv4: Ensure the delegation is pinned in nfs_do_return_delegation()
The call to nfs_do_return_delegation() needs to be taken without
any RCU locks. Add a refcount to make sure the delegation remains
pinned in memory until we're done.
Fixes: ee05f456772d ("NFSv4: Fix races between open and delegreturn")
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>