| commit | fc0e38dae645f65424d1fb5d2a938aab8ce48a58 | [log] [tgz] |
|---|---|---|
| author | Steven Whitehouse <swhiteho@redhat.com> | Wed Mar 09 10:58:04 2011 +0000 |
| committer | Steven Whitehouse <swhiteho@redhat.com> | Wed Mar 09 10:58:04 2011 +0000 |
| tree | 8b0a89a0de01a0504a002a184a290a53545fce82 | |
| parent | 662e3a551b468c7338f5291d7a00389fe85885e2 [diff] |
GFS2: Fix glock deallocation race This patch fixes a race in deallocating glocks which was introduced in the RCU glock patch. We need to ensure that the glock count is kept correct even in the case that there is a race to add a new glock into the hash table. Also, to avoid having to wait for an RCU grace period, the glock counter can be decremented before call_rcu() is called. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>