fs/9p: Implement POSIX ACL permission checking function

The ACL value is fetched as a part of inode initialization
from the server and the permission checking function use the
cached value of the ACL

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>

1 files changed, 9 insertions, 1 deletions

diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c
index c3d200d41dca..1249b8323961 100644
--- a/fs/9p/vfs_inode.c
+++ b/fs/9p/vfs_inode.c
@@ -36,6 +36,7 @@
 #include <linux/sched.h>
 #include <linux/slab.h>
 #include <linux/xattr.h>
+#include <linux/posix_acl.h>
 #include <net/9p/9p.h>
 #include <net/9p/client.h>
 
@@ -44,6 +45,7 @@
 #include "fid.h"
 #include "cache.h"
 #include "xattr.h"
+#include "acl.h"
 
 static const struct inode_operations v9fs_dir_inode_operations;
 static const struct inode_operations v9fs_dir_inode_operations_dotu;
@@ -500,6 +502,11 @@ v9fs_inode_dotl(struct v9fs_session_info *v9ses, struct p9_fid *fid,
         v9fs_vcookie_set_qid(ret, &st->qid);
         v9fs_cache_inode_get_cookie(ret);
 #endif
+        err = v9fs_get_acl(ret, fid);
+        if (err) {
+                iput(ret);
+                goto error;
+        }
         kfree(st);
         return ret;
 error:
@@ -1959,7 +1966,7 @@ static const struct inode_operations v9fs_dir_inode_operations_dotl = {
         .getxattr = generic_getxattr,
         .removexattr = generic_removexattr,
         .listxattr = v9fs_listxattr,
-
+        .check_acl = v9fs_check_acl,
 };
 
 static const struct inode_operations v9fs_dir_inode_operations = {
@@ -1986,6 +1993,7 @@ static const struct inode_operations v9fs_file_inode_operations_dotl = {
         .getxattr = generic_getxattr,
         .removexattr = generic_removexattr,
         .listxattr = v9fs_listxattr,
+        .check_acl = v9fs_check_acl,
 };
 
 static const struct inode_operations v9fs_symlink_inode_operations = {