NFS: Remove BKL from the symlink code

Page cache accesses are serialised using page locks, whereas attribute
updates are serialised using inode->i_lock.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

1 files changed, 1 insertions, 7 deletions

diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index 1bdc36bf1782..e5f950291928 100644
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -1482,13 +1482,9 @@ static int nfs_symlink(struct inode *dir, struct dentry *dentry, const char *sym
         attr.ia_mode = S_IFLNK | S_IRWXUGO;
         attr.ia_valid = ATTR_MODE;
 
-        lock_kernel();
-
         page = alloc_page(GFP_HIGHUSER);
-        if (!page) {
-                unlock_kernel();
+        if (!page)
                 return -ENOMEM;
-        }
 
         kaddr = kmap_atomic(page, KM_USER0);
         memcpy(kaddr, symname, pathlen);
@@ -1503,7 +1499,6 @@ static int nfs_symlink(struct inode *dir, struct dentry *dentry, const char *sym
                         dentry->d_name.name, symname, error);
                 d_drop(dentry);
                 __free_page(page);
-                unlock_kernel();
                 return error;
         }
 
@@ -1521,7 +1516,6 @@ static int nfs_symlink(struct inode *dir, struct dentry *dentry, const char *sym
         } else
                 __free_page(page);
 
-        unlock_kernel();
         return 0;
 }