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NFSv4: Always use the delegation if we have one

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Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Trond Myklebust
2007-07-05 18:07:55 -04:00
parent 0f9f95e0ad
commit 003707c722
3 changed files with 94 additions and 36 deletions
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28
fs/nfs/nfs4state.c
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@@ -412,7 +412,8 @@ void nfs4_close_state(struct path *path, struct nfs4_state *state, mode_t mode)
{
struct inode *inode = state->inode;
struct nfs4_state_owner *owner = state->owner;
int oldstate, newstate = 0;
int call_close = 0;
int newstate;
atomic_inc(&owner->so_count);
/* Protect against nfs4_find_state() */
@@ -428,21 +429,26 @@ void nfs4_close_state(struct path *path, struct nfs4_state *state, mode_t mode)
case FMODE_READ|FMODE_WRITE:
state->n_rdwr--;
}
oldstate = newstate = state->state;
newstate = FMODE_READ|FMODE_WRITE;
if (state->n_rdwr == 0) {
if (state->n_rdonly == 0)
if (state->n_rdonly == 0) {
newstate &= ~FMODE_READ;
if (state->n_wronly == 0)
call_close |= test_bit(NFS_O_RDONLY_STATE, &state->flags);
call_close |= test_bit(NFS_O_RDWR_STATE, &state->flags);
}
if (state->n_wronly == 0) {
newstate &= ~FMODE_WRITE;
call_close |= test_bit(NFS_O_WRONLY_STATE, &state->flags);
call_close |= test_bit(NFS_O_RDWR_STATE, &state->flags);
}
if (newstate == 0)
clear_bit(NFS_DELEGATED_STATE, &state->flags);
}
if (test_bit(NFS_DELEGATED_STATE, &state->flags)) {
nfs4_state_set_mode_locked(state, newstate);
oldstate = newstate;
}
nfs4_state_set_mode_locked(state, newstate);
spin_unlock(&inode->i_lock);
spin_unlock(&owner->so_lock);
if (oldstate == newstate) {
if (!call_close) {
nfs4_put_open_state(state);
nfs4_put_state_owner(owner);
} else
@@ -838,6 +844,10 @@ static void nfs4_state_mark_reclaim(struct nfs_client *clp)
sp->so_seqid.flags = 0;
spin_lock(&sp->so_lock);
list_for_each_entry(state, &sp->so_states, open_states) {
clear_bit(NFS_DELEGATED_STATE, &state->flags);
clear_bit(NFS_O_RDONLY_STATE, &state->flags);
clear_bit(NFS_O_WRONLY_STATE, &state->flags);
clear_bit(NFS_O_RDWR_STATE, &state->flags);
list_for_each_entry(lock, &state->lock_states, ls_locks) {
lock->ls_seqid.counter = 0;
lock->ls_seqid.flags = 0;