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authorDavid Howells <dhowells@redhat.com>2008-11-14 10:38:58 +1100
committerJames Morris <jmorris@namei.org>2008-11-14 10:38:58 +1100
commit5cc0a84076e172c18fb927781f44c6e47d6c5a06 (patch)
tree1a8afb2b8b06f62e645ff7bbf544cd60adcdfcb9
parent48937024c65db88abafd0fb14021db31f09cd4ec (diff)
downloadlinux-2.6.38-lt-ux500-5cc0a84076e172c18fb927781f44c6e47d6c5a06.tar.gz
CRED: Wrap task credential accesses in the NFS daemon
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: J. Bruce Fields <bfields@fieldses.org> Cc: Neil Brown <neilb@suse.de> Cc: linux-nfs@vger.kernel.org Signed-off-by: James Morris <jmorris@namei.org>
-rw-r--r--fs/nfsd/vfs.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c
index 848a03e83a4..890d9a68c85 100644
--- a/fs/nfsd/vfs.c
+++ b/fs/nfsd/vfs.c
@@ -1169,7 +1169,7 @@ nfsd_create_setattr(struct svc_rqst *rqstp, struct svc_fh *resfhp,
* send along the gid on create when it tries to implement
* setgid directories via NFS:
*/
- if (current->fsuid != 0)
+ if (current_fsuid() != 0)
iap->ia_valid &= ~(ATTR_UID|ATTR_GID);
if (iap->ia_valid)
return nfsd_setattr(rqstp, resfhp, iap, 0, (time_t)0);
@@ -2004,7 +2004,7 @@ nfsd_permission(struct svc_rqst *rqstp, struct svc_export *exp,
IS_APPEND(inode)? " append" : "",
__mnt_is_readonly(exp->ex_path.mnt)? " ro" : "");
dprintk(" owner %d/%d user %d/%d\n",
- inode->i_uid, inode->i_gid, current->fsuid, current->fsgid);
+ inode->i_uid, inode->i_gid, current_fsuid(), current_fsgid());
#endif
/* Normally we reject any write/sattr etc access on a read-only file
@@ -2047,7 +2047,7 @@ nfsd_permission(struct svc_rqst *rqstp, struct svc_export *exp,
* with NFSv3.
*/
if ((acc & NFSD_MAY_OWNER_OVERRIDE) &&
- inode->i_uid == current->fsuid)
+ inode->i_uid == current_fsuid())
return 0;
/* This assumes NFSD_MAY_{READ,WRITE,EXEC} == MAY_{READ,WRITE,EXEC} */