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-rw-r--r--fs/nfs/nfs4_fs.h1
-rw-r--r--fs/nfs/nfs4proc.c34
-rw-r--r--fs/nfs/nfs4renewd.c2
-rw-r--r--fs/nfs/nfs4state.c5
-rw-r--r--fs/nfs/super.c12
5 files changed, 36 insertions, 18 deletions
diff --git a/fs/nfs/nfs4_fs.h b/fs/nfs/nfs4_fs.h
index b35069a2aa9..bd1b9d663fb 100644
--- a/fs/nfs/nfs4_fs.h
+++ b/fs/nfs/nfs4_fs.h
@@ -115,6 +115,7 @@ struct nfs4_lock_state {
#define NFS_LOCK_INITIALIZED 1
int ls_flags;
struct nfs_seqid_counter ls_seqid;
+ struct rpc_sequence ls_sequence;
struct nfs_unique_id ls_id;
nfs4_stateid ls_stateid;
atomic_t ls_count;
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index f03d9d5f5ba..9e2e1c7291d 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -741,10 +741,10 @@ static void nfs4_open_confirm_done(struct rpc_task *task, void *calldata)
if (data->rpc_status == 0) {
memcpy(data->o_res.stateid.data, data->c_res.stateid.data,
sizeof(data->o_res.stateid.data));
+ nfs_confirm_seqid(&data->owner->so_seqid, 0);
renew_lease(data->o_res.server, data->timestamp);
data->rpc_done = 1;
}
- nfs_confirm_seqid(&data->owner->so_seqid, data->rpc_status);
nfs_increment_open_seqid(data->rpc_status, data->c_arg.seqid);
}
@@ -759,7 +759,6 @@ static void nfs4_open_confirm_release(void *calldata)
/* In case of error, no cleanup! */
if (!data->rpc_done)
goto out_free;
- nfs_confirm_seqid(&data->owner->so_seqid, 0);
state = nfs4_opendata_to_nfs4_state(data);
if (!IS_ERR(state))
nfs4_close_state(&data->path, state, data->o_arg.open_flags);
@@ -886,7 +885,6 @@ static void nfs4_open_release(void *calldata)
/* In case we need an open_confirm, no cleanup! */
if (data->o_res.rflags & NFS4_OPEN_RESULT_CONFIRM)
goto out_free;
- nfs_confirm_seqid(&data->owner->so_seqid, 0);
state = nfs4_opendata_to_nfs4_state(data);
if (!IS_ERR(state))
nfs4_close_state(&data->path, state, data->o_arg.open_flags);
@@ -3333,6 +3331,12 @@ static struct nfs4_lockdata *nfs4_alloc_lockdata(struct file_lock *fl,
p->arg.fh = NFS_FH(inode);
p->arg.fl = &p->fl;
+ if (!(lsp->ls_seqid.flags & NFS_SEQID_CONFIRMED)) {
+ p->arg.open_seqid = nfs_alloc_seqid(&lsp->ls_state->owner->so_seqid);
+ if (p->arg.open_seqid == NULL)
+ goto out_free;
+
+ }
p->arg.lock_seqid = nfs_alloc_seqid(&lsp->ls_seqid);
if (p->arg.lock_seqid == NULL)
goto out_free;
@@ -3345,6 +3349,8 @@ static struct nfs4_lockdata *nfs4_alloc_lockdata(struct file_lock *fl,
memcpy(&p->fl, fl, sizeof(p->fl));
return p;
out_free:
+ if (p->arg.open_seqid != NULL)
+ nfs_free_seqid(p->arg.open_seqid);
kfree(p);
return NULL;
}
@@ -3361,23 +3367,23 @@ static void nfs4_lock_prepare(struct rpc_task *task, void *calldata)
.rpc_cred = sp->so_cred,
};
- if (nfs_wait_on_sequence(data->arg.lock_seqid, task) != 0)
- return;
dprintk("%s: begin!\n", __FUNCTION__);
/* Do we need to do an open_to_lock_owner? */
if (!(data->arg.lock_seqid->sequence->flags & NFS_SEQID_CONFIRMED)) {
- data->arg.open_seqid = nfs_alloc_seqid(&sp->so_seqid);
- if (data->arg.open_seqid == NULL) {
- data->rpc_status = -ENOMEM;
- task->tk_action = NULL;
- goto out;
- }
+ if (nfs_wait_on_sequence(data->arg.open_seqid, task) != 0)
+ return;
data->arg.open_stateid = &state->stateid;
data->arg.new_lock_owner = 1;
+ /* Retest in case we raced... */
+ if (!(data->arg.lock_seqid->sequence->flags & NFS_SEQID_CONFIRMED))
+ goto do_rpc;
}
+ if (nfs_wait_on_sequence(data->arg.lock_seqid, task) != 0)
+ return;
+ data->arg.new_lock_owner = 0;
+do_rpc:
data->timestamp = jiffies;
rpc_call_setup(task, &msg, 0);
-out:
dprintk("%s: done!, ret = %d\n", __FUNCTION__, data->rpc_status);
}
@@ -3413,8 +3419,6 @@ static void nfs4_lock_release(void *calldata)
struct nfs4_lockdata *data = calldata;
dprintk("%s: begin!\n", __FUNCTION__);
- if (data->arg.open_seqid != NULL)
- nfs_free_seqid(data->arg.open_seqid);
if (data->cancelled != 0) {
struct rpc_task *task;
task = nfs4_do_unlck(&data->fl, data->ctx, data->lsp,
@@ -3424,6 +3428,8 @@ static void nfs4_lock_release(void *calldata)
dprintk("%s: cancelling lock!\n", __FUNCTION__);
} else
nfs_free_seqid(data->arg.lock_seqid);
+ if (data->arg.open_seqid != NULL)
+ nfs_free_seqid(data->arg.open_seqid);
nfs4_put_lock_state(data->lsp);
put_nfs_open_context(data->ctx);
kfree(data);
diff --git a/fs/nfs/nfs4renewd.c b/fs/nfs/nfs4renewd.c
index 3ea352d82eb..5e2e4af1a0e 100644
--- a/fs/nfs/nfs4renewd.c
+++ b/fs/nfs/nfs4renewd.c
@@ -133,9 +133,7 @@ nfs4_renewd_prepare_shutdown(struct nfs_server *server)
void
nfs4_kill_renewd(struct nfs_client *clp)
{
- down_read(&clp->cl_sem);
cancel_delayed_work_sync(&clp->cl_renewd);
- up_read(&clp->cl_sem);
}
/*
diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c
index 23a9a36556b..5a39c6f78ac 100644
--- a/fs/nfs/nfs4state.c
+++ b/fs/nfs/nfs4state.c
@@ -509,7 +509,10 @@ static struct nfs4_lock_state *nfs4_alloc_lock_state(struct nfs4_state *state, f
lsp = kzalloc(sizeof(*lsp), GFP_KERNEL);
if (lsp == NULL)
return NULL;
- lsp->ls_seqid.sequence = &state->owner->so_sequence;
+ rpc_init_wait_queue(&lsp->ls_sequence.wait, "lock_seqid_waitqueue");
+ spin_lock_init(&lsp->ls_sequence.lock);
+ INIT_LIST_HEAD(&lsp->ls_sequence.list);
+ lsp->ls_seqid.sequence = &lsp->ls_sequence;
atomic_set(&lsp->ls_count, 1);
lsp->ls_owner = fl_owner;
spin_lock(&clp->cl_lock);
diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index ea929207f27..0b0c72a072f 100644
--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@ -1475,7 +1475,7 @@ static int nfs_xdev_get_sb(struct file_system_type *fs_type, int flags,
error = PTR_ERR(mntroot);
goto error_splat_super;
}
- if (mntroot->d_inode->i_op != server->nfs_client->rpc_ops->dir_inode_ops) {
+ if (mntroot->d_inode->i_op != NFS_SB(s)->nfs_client->rpc_ops->dir_inode_ops) {
dput(mntroot);
error = -ESTALE;
goto error_splat_super;
@@ -1826,6 +1826,11 @@ static int nfs4_xdev_get_sb(struct file_system_type *fs_type, int flags,
error = PTR_ERR(mntroot);
goto error_splat_super;
}
+ if (mntroot->d_inode->i_op != NFS_SB(s)->nfs_client->rpc_ops->dir_inode_ops) {
+ dput(mntroot);
+ error = -ESTALE;
+ goto error_splat_super;
+ }
s->s_flags |= MS_ACTIVE;
mnt->mnt_sb = s;
@@ -1900,6 +1905,11 @@ static int nfs4_referral_get_sb(struct file_system_type *fs_type, int flags,
error = PTR_ERR(mntroot);
goto error_splat_super;
}
+ if (mntroot->d_inode->i_op != NFS_SB(s)->nfs_client->rpc_ops->dir_inode_ops) {
+ dput(mntroot);
+ error = -ESTALE;
+ goto error_splat_super;
+ }
s->s_flags |= MS_ACTIVE;
mnt->mnt_sb = s;
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-30 16:02:27 +0000