We should clear NFS_DELEGATED_STATE bit for inode->open_states after return delegation.
Signed-off-by: Bian Naimeng <biannm@xxxxxxxxxxxxxx>
---
fs/nfs/nfs4proc.c | 15 ++++++++++++++-
1 files changed, 14 insertions(+), 1 deletions(-)
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 70015dd..76cdef4 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -933,16 +933,29 @@ no_delegation:
static void nfs4_return_incompatible_delegation(struct inode *inode, fmode_t fmode)
{
+ struct nfs_inode *nfsi = NFS_I(inode);
struct nfs_delegation *delegation;
+ struct nfs4_state *state;
rcu_read_lock();
- delegation = rcu_dereference(NFS_I(inode)->delegation);
+ delegation = rcu_dereference(nfsi->delegation);
if (delegation == NULL || (delegation->type & fmode) == fmode) {
rcu_read_unlock();
return;
}
rcu_read_unlock();
nfs_inode_return_delegation(inode);
+
+ spin_lock(&inode->i_lock);
+ list_for_each_entry(state, &nfsi->open_states, inode_states) {
+ if (state->owner == NULL)
+ continue;
+
+ spin_lock(&state->owner->so_lock);
+ clear_bit(NFS_DELEGATED_STATE, &state->flags);
+ spin_unlock(&state->owner->so_lock);
+ }
+ spin_unlock(&inode->i_lock);
}
static struct nfs4_state *nfs4_try_open_cached(struct nfs4_opendata *opendata)
--
1.6.5.2
--
To unsubscribe from this list: send the line "unsubscribe linux-nfs" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
