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Subject[PATCH 33/52] CRED: Make the get_parent() export op take a credential pointer
Date
Make the get_parent() export op take a credential pointer.

Signed-off-by: David Howells <dhowells@redhat.com>
---

fs/ext3/namei.c | 3 +--
fs/ext3/namei.h | 2 +-
fs/fat/inode.c | 2 +-
include/linux/exportfs.h | 5 +++--
mm/shmem.c | 2 +-
5 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/fs/ext3/namei.c b/fs/ext3/namei.c
index cd0fcde..aa741bb 100644
--- a/fs/ext3/namei.c
+++ b/fs/ext3/namei.c
@@ -1072,9 +1072,8 @@ static struct dentry *ext3_lookup(struct inode * dir, struct dentry *dentry, str
}


-struct dentry *ext3_get_parent(struct dentry *child)
+struct dentry *ext3_get_parent(struct dentry *child, struct cred *cred)
{
- struct cred *cred = current->cred;
unsigned long ino;
struct dentry *parent;
struct inode *inode;
diff --git a/fs/ext3/namei.h b/fs/ext3/namei.h
index f2ce2b0..53d7c59 100644
--- a/fs/ext3/namei.h
+++ b/fs/ext3/namei.h
@@ -5,4 +5,4 @@
*
*/

-extern struct dentry *ext3_get_parent(struct dentry *child);
+extern struct dentry *ext3_get_parent(struct dentry *child, struct cred *cred);
diff --git a/fs/fat/inode.c b/fs/fat/inode.c
index 045647d..519e1b4 100644
--- a/fs/fat/inode.c
+++ b/fs/fat/inode.c
@@ -748,7 +748,7 @@ fat_encode_fh(struct dentry *de, __u32 *fh, int *lenp, int connectable)
return 3;
}

-static struct dentry *fat_get_parent(struct dentry *child)
+static struct dentry *fat_get_parent(struct dentry *child, struct cred *cred)
{
struct buffer_head *bh;
struct msdos_dir_entry *de;
diff --git a/include/linux/exportfs.h b/include/linux/exportfs.h
index 8872fe8..895fd2d 100644
--- a/include/linux/exportfs.h
+++ b/include/linux/exportfs.h
@@ -73,7 +73,8 @@ struct vfsmount;
* get_parent:
* @get_parent should find the parent directory for the given @child which
* is also a directory. In the event that it cannot be found, or storage
- * space cannot be allocated, a %ERR_PTR should be returned.
+ * space cannot be allocated, a %ERR_PTR should be returned. @cred indicates
+ * the credentials to be used for the lookup.
*
* get_dentry:
* Given a &super_block (@sb) and a pointer to a file-system specific inode
@@ -103,7 +104,7 @@ struct export_operations {
int connectable);
int (*get_name)(struct dentry *parent, char *name,
struct dentry *child);
- struct dentry * (*get_parent)(struct dentry *child);
+ struct dentry * (*get_parent)(struct dentry *child, struct cred *cred);
struct dentry * (*get_dentry)(struct super_block *sb, void *inump);

/* This is set by the exporting module to a standard helper */
diff --git a/mm/shmem.c b/mm/shmem.c
index fc834e7..ee0b20a 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -1994,7 +1994,7 @@ static struct xattr_handler *shmem_xattr_handlers[] = {
};
#endif

-static struct dentry *shmem_get_parent(struct dentry *child)
+static struct dentry *shmem_get_parent(struct dentry *child, struct cred *cred)
{
return ERR_PTR(-ESTALE);
}
-
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