All the NFSv4 stateful operations are already protected by other locks (in
particular by the rpc_sequence locks.
Signed-off-by: Trond Myklebust <Trond.Myklebust@xxxxxxxxxx>
---
fs/nfs/dir.c | 6 ------
fs/nfs/file.c | 2 --
fs/nfs/nfs4proc.c | 2 --
3 files changed, 0 insertions(+), 10 deletions(-)
diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index a42ed8f..4ba889b 100644
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -139,10 +139,8 @@ nfs_opendir(struct inode *inode, struct file *filp)
nfs_inc_stats(inode, NFSIOS_VFSOPEN);
- lock_kernel();
/* Call generic open code in order to cache credentials */
res = nfs_open(inode, filp);
- unlock_kernel();
return res;
}
@@ -1019,9 +1017,7 @@ static struct dentry *nfs_atomic_lookup(struct inode *dir, struct dentry *dentry
}
/* Open the file on the server */
- lock_kernel();
res = nfs4_atomic_open(dir, dentry, nd);
- unlock_kernel();
if (IS_ERR(res)) {
error = PTR_ERR(res);
switch (error) {
@@ -1083,9 +1079,7 @@ static int nfs_open_revalidate(struct dentry *dentry, struct nameidata *nd)
* operations that change the directory. We therefore save the
* change attribute *before* we do the RPC call.
*/
- lock_kernel();
ret = nfs4_open_revalidate(dir, dentry, openflags, nd);
- unlock_kernel();
out:
dput(parent);
if (!ret)
diff --git a/fs/nfs/file.c b/fs/nfs/file.c
index f919d9a..9f1bed9 100644
--- a/fs/nfs/file.c
+++ b/fs/nfs/file.c
@@ -128,9 +128,7 @@ nfs_file_open(struct inode *inode, struct file *filp)
return res;
nfs_inc_stats(inode, NFSIOS_VFSOPEN);
- lock_kernel();
res = nfs_open(inode, filp);
- unlock_kernel();
return res;
}
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 66f13dc..affdbb9 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -451,9 +451,7 @@ static struct nfs4_state *nfs4_try_open_cached(struct nfs4_opendata *opendata)
/* Save the delegation */
memcpy(stateid.data, delegation->stateid.data, sizeof(stateid.data));
rcu_read_unlock();
- lock_kernel();
ret = nfs_may_open(state->inode, state->owner->so_cred, open_mode);
- unlock_kernel();
if (ret != 0)
goto out;
ret = -EAGAIN;
--
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