ocfs2: add ext2 attributes

Support immutable, and other attributes.

Some renaming and other minor fixes done by myself.

Signed-off-by: Herbert Poetzl <herbert@13thfloor.at>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>

1 files changed, 27 insertions, 1 deletions

diff --git a/fs/ocfs2/inode.c b/fs/ocfs2/inode.c
index 327a5b7b86ed..3f496c41fea8 100644
--- a/fs/ocfs2/inode.c
+++ b/fs/ocfs2/inode.c
@@ -71,6 +71,26 @@ static int ocfs2_truncate_for_delete(struct ocfs2_super *osb,
                                     struct inode *inode,
                                     struct buffer_head *fe_bh);
 
+void ocfs2_set_inode_flags(struct inode *inode)
+{
+        unsigned int flags = OCFS2_I(inode)->ip_attr;
+
+        inode->i_flags &= ~(S_IMMUTABLE |
+                S_SYNC | S_APPEND | S_NOATIME | S_DIRSYNC);
+
+        if (flags & OCFS2_IMMUTABLE_FL)
+                inode->i_flags |= S_IMMUTABLE;
+
+        if (flags & OCFS2_SYNC_FL)
+                inode->i_flags |= S_SYNC;
+        if (flags & OCFS2_APPEND_FL)
+                inode->i_flags |= S_APPEND;
+        if (flags & OCFS2_NOATIME_FL)
+                inode->i_flags |= S_NOATIME;
+        if (flags & OCFS2_DIRSYNC_FL)
+                inode->i_flags |= S_DIRSYNC;
+}
+
 struct inode *ocfs2_ilookup_for_vote(struct ocfs2_super *osb,
                                      u64 blkno,
                                      int delete_vote)
@@ -260,7 +280,6 @@ int ocfs2_populate_inode(struct inode *inode, struct ocfs2_dinode *fe,
                 inode->i_blocks =
                         ocfs2_align_bytes_to_sectors(le64_to_cpu(fe->i_size));
         inode->i_mapping->a_ops = &ocfs2_aops;
-        inode->i_flags |= S_NOATIME;
         inode->i_atime.tv_sec = le64_to_cpu(fe->i_atime);
         inode->i_atime.tv_nsec = le32_to_cpu(fe->i_atime_nsec);
         inode->i_mtime.tv_sec = le64_to_cpu(fe->i_mtime);
@@ -276,6 +295,7 @@ int ocfs2_populate_inode(struct inode *inode, struct ocfs2_dinode *fe,
 
         OCFS2_I(inode)->ip_clusters = le32_to_cpu(fe->i_clusters);
         OCFS2_I(inode)->ip_orphaned_slot = OCFS2_INVALID_SLOT;
+        OCFS2_I(inode)->ip_attr = le32_to_cpu(fe->i_attr);
 
         if (create_ino)
                 inode->i_ino = ino_from_blkno(inode->i_sb,
@@ -330,6 +350,9 @@ int ocfs2_populate_inode(struct inode *inode, struct ocfs2_dinode *fe,
         ocfs2_inode_lock_res_init(&OCFS2_I(inode)->ip_data_lockres,
                                   OCFS2_LOCK_TYPE_DATA, inode);
 
+        ocfs2_set_inode_flags(inode);
+        inode->i_flags |= S_NOATIME;
+
         status = 0;
 bail:
         mlog_exit(status);
@@ -1131,6 +1154,7 @@ int ocfs2_mark_inode_dirty(struct ocfs2_journal_handle *handle,
 
         spin_lock(&OCFS2_I(inode)->ip_lock);
         fe->i_clusters = cpu_to_le32(OCFS2_I(inode)->ip_clusters);
+        fe->i_attr = cpu_to_le32(OCFS2_I(inode)->ip_attr);
         spin_unlock(&OCFS2_I(inode)->ip_lock);
 
         fe->i_size = cpu_to_le64(i_size_read(inode));
@@ -1169,6 +1193,8 @@ void ocfs2_refresh_inode(struct inode *inode,
         spin_lock(&OCFS2_I(inode)->ip_lock);
 
         OCFS2_I(inode)->ip_clusters = le32_to_cpu(fe->i_clusters);
+        OCFS2_I(inode)->ip_attr = le32_to_cpu(fe->i_attr);
+        ocfs2_set_inode_flags(inode);
         i_size_write(inode, le64_to_cpu(fe->i_size));
         inode->i_nlink = le16_to_cpu(fe->i_links_count);
         inode->i_uid = le32_to_cpu(fe->i_uid);