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authorTrond Myklebust <Trond.Myklebust@netapp.com>2009-07-21 16:47:46 -0400
committerTrond Myklebust <Trond.Myklebust@netapp.com>2009-07-21 16:47:46 -0400
commitb64aec8d1e1d8482a7b6cca60c8105c756bf1fe4 (patch)
tree022958ab88c3e6a7c9372e50cedb588e73462b57 /fs/nfs
parentaea1f7964ae6cba5eb419a958956deb9016b3341 (diff)
downloadop-kernel-dev-b64aec8d1e1d8482a7b6cca60c8105c756bf1fe4.zip
op-kernel-dev-b64aec8d1e1d8482a7b6cca60c8105c756bf1fe4.tar.gz
NFSv4: Fix an Oops in nfs4_free_lock_state
The oops http://www.kerneloops.org/raw.php?rawid=537858&msgid= appears to be due to the nfs4_lock_state->ls_state field being uninitialised. This happens if the call to nfs4_free_lock_state() is triggered at the end of nfs4_get_lock_state(). The fix is to move the initialisation of ls_state into the allocator. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs/nfs')
-rw-r--r--fs/nfs/nfs4state.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c
index b73c5a7..65ca8c1 100644
--- a/fs/nfs/nfs4state.c
+++ b/fs/nfs/nfs4state.c
@@ -553,6 +553,7 @@ static struct nfs4_lock_state *nfs4_alloc_lock_state(struct nfs4_state *state, f
INIT_LIST_HEAD(&lsp->ls_sequence.list);
lsp->ls_seqid.sequence = &lsp->ls_sequence;
atomic_set(&lsp->ls_count, 1);
+ lsp->ls_state = state;
lsp->ls_owner = fl_owner;
spin_lock(&clp->cl_lock);
nfs_alloc_unique_id(&clp->cl_lockowner_id, &lsp->ls_id, 1, 64);
@@ -587,7 +588,6 @@ static struct nfs4_lock_state *nfs4_get_lock_state(struct nfs4_state *state, fl_
if (lsp != NULL)
break;
if (new != NULL) {
- new->ls_state = state;
list_add(&new->ls_locks, &state->lock_states);
set_bit(LK_STATE_IN_USE, &state->flags);
lsp = new;
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