ocfs2: Add extended attribute support

This patch implements storing extended attributes both in inode or a single
external block. We only store EA's in-inode when blocksize > 512 or that
inode block has free space for it. When an EA's value is larger than 80
bytes, we will store the value via b-tree outside inode or block.

Signed-off-by: Tiger Yang <tiger.yang@oracle.com>
Signed-off-by: Mark Fasheh <mfasheh@suse.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/fs/ocfs2/namei.c b/fs/ocfs2/namei.c
index 2cd6f501755..76d1d131430 100644
--- a/fs/ocfs2/namei.c
+++ b/fs/ocfs2/namei.c
@@ -60,6 +60,7 @@
 #include "symlink.h"
 #include "sysfile.h"
 #include "uptodate.h"
+#include "xattr.h"
 
 #include "buffer_head_io.h"
 
@@ -1918,4 +1919,8 @@ const struct inode_operations ocfs2_dir_iops = {
         .setattr        = ocfs2_setattr,
         .getattr        = ocfs2_getattr,
         .permission     = ocfs2_permission,
+        .setxattr       = generic_setxattr,
+        .getxattr       = generic_getxattr,
+        .listxattr      = ocfs2_listxattr,
+        .removexattr    = generic_removexattr,
 };