[CIFS] Allow to set extended attribute cifs_acl (try #2)

Allow setting cifs_acl on the server.
Pass on to the server the ACL blob generated by an application.
cifs is just a pass-through, it does not monitor or inspect the contents
of the blob, server decides whether to enforce/apply the ACL blob composed
by an application.
If setting of ACL is succeessful, mark the inode for revalidation.

Signed-off-by: Shirish Pargaonkar <shirishpargaonkar@gmail.com>
Acked-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/fs/cifs/cifsproto.h b/fs/cifs/cifsproto.h
index e94526949677..0e4e057e2891 100644
--- a/fs/cifs/cifsproto.h
+++ b/fs/cifs/cifsproto.h
@@ -143,6 +143,8 @@ extern int cifs_acl_to_fattr(struct cifs_sb_info *cifs_sb,
 extern int mode_to_cifs_acl(struct inode *inode, const char *path, __u64);
 extern struct cifs_ntsd *get_cifs_acl(struct cifs_sb_info *, struct inode *,
                                         const char *, u32 *);
+extern int set_cifs_acl(struct cifs_ntsd *, __u32, struct inode *,
+                                const char *);
 
 extern int cifs_mount(struct super_block *, struct cifs_sb_info *, char *,
                         const char *);