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FromDavid Howells <>
Subject[PATCH 42/59] CRED: Wrap task credential accesses in the SMBFS filesystem
DateWed, 27 Aug 2008 14:49:19 +0100
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>
Cc: Steven French <sfrench@us.ibm.com>
---
fs/smbfs/dir.c | 4 ++--
fs/smbfs/inode.c | 2 +-
fs/smbfs/proc.c | 2 +-
3 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/fs/smbfs/dir.c b/fs/smbfs/dir.c
index 48da4fa..9e9bb0d 100644
--- a/fs/smbfs/dir.c
+++ b/fs/smbfs/dir.c
@@ -667,8 +667,8 @@ smb_make_node(struct inode *dir, struct dentry *dentry, int mode, dev_t dev)

attr.ia_valid = ATTR_MODE | ATTR_UID | ATTR_GID;
attr.ia_mode = mode;
- attr.ia_uid = current->euid;
- attr.ia_gid = current->egid;
+ attr.ia_uid = current_euid();
+ attr.ia_gid = current_egid();

if (!new_valid_dev(dev))
return -EINVAL;
diff --git a/fs/smbfs/inode.c b/fs/smbfs/inode.c
index 3528f40..fc27fbf 100644
--- a/fs/smbfs/inode.c
+++ b/fs/smbfs/inode.c
@@ -586,7 +586,7 @@ static int smb_fill_super(struct super_block *sb, void *raw_data, int silent)
if (parse_options(mnt, raw_data))
goto out_bad_option;
}
- mnt->mounted_uid = current->uid;
+ mnt->mounted_uid = current_uid();
smb_setcodepage(server, &mnt->codepage);

/*
diff --git a/fs/smbfs/proc.c b/fs/smbfs/proc.c
index ee536e8..9468168 100644
--- a/fs/smbfs/proc.c
+++ b/fs/smbfs/proc.c
@@ -864,7 +864,7 @@ smb_newconn(struct smb_sb_info *server, struct smb_conn_opt *opt)
goto out;

error = -EACCES;
- if (current->uid != server->mnt->mounted_uid &&
+ if (current_uid() != server->mnt->mounted_uid &&
!capable(CAP_SYS_ADMIN))
goto out;



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