CRED: Wrap task credential accesses in the UDF filesystem

Wrap access to task credentials so that they can be separated more easily from
the task_struct during the introduction of COW creds.

Change most current->(|e|s|fs)[ug]id to current_(|e|s|fs)[ug]id().

Change some task->e?[ug]id to task_e?[ug]id().  In some places it makes more
sense to use RCU directly rather than a convenient wrapper; these will be
addressed by later patches.

Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: James Morris <jmorris@namei.org>
Acked-by: Serge Hallyn <serue@us.ibm.com>
Acked-by: Jan Kara <jack@suse.cz>
Signed-off-by: James Morris <jmorris@namei.org>

diff --git a/fs/udf/ialloc.c b/fs/udf/ialloc.c
index a4f2b3ce45b053ca76168a01d93b38974d34a949..31fc84297ddb545809e2033a2b5d6c4bf427716a 100644 (file)
--- a/fs/udf/ialloc.c
+++ b/fs/udf/ialloc.c
@@ -126,13 +126,13 @@ struct inode *udf_new_inode(struct inode *dir, int mode, int *err)
        }
        mutex_unlock(&sbi->s_alloc_mutex);
        inode->i_mode = mode;
-       inode->i_uid = current->fsuid;
+       inode->i_uid = current_fsuid();
        if (dir->i_mode & S_ISGID) {
                inode->i_gid = dir->i_gid;
                if (S_ISDIR(mode))
                        mode |= S_ISGID;
        } else {
-               inode->i_gid = current->fsgid;
+               inode->i_gid = current_fsgid();
        }
 
        iinfo->i_location.logicalBlockNum = block;

diff --git a/fs/udf/namei.c b/fs/udf/namei.c
index 082409cd4b8aec78918c697cc4666fe937cb26be..f84bfaa8d941bf2ba6b60793ea34d081c9c2fb2d 100644 (file)
--- a/fs/udf/namei.c
+++ b/fs/udf/namei.c
@@ -604,7 +604,7 @@ static int udf_mknod(struct inode *dir, struct dentry *dentry, int mode,
                goto out;
 
        iinfo = UDF_I(inode);
-       inode->i_uid = current->fsuid;
+       inode->i_uid = current_fsuid();
        init_special_inode(inode, mode, rdev);
        fi = udf_add_entry(dir, dentry, &fibh, &cfi, &err);
        if (!fi) {