* Attribute changes now also change the status change time.

* While Ingo already convinced me to use the modified time for this instead
  (see People files, for example), I did not do so for two reasons:
  1) The file modification date is important to the user; more or less hidden
     attribute changes shouldn't have an effect on this.
  2) Efficiency: the last_modified field is indexed whereas status_change is
     not. Speed would suffer noticeably else.
* We might want to think about a new "stat::st_attrtim" field, though, instead.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@33825 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/add-ons/kernel/file_systems/bfs/kernel_interface.cpp

@@ -3,6 +3,7 @@
  * This file may be used under the terms of the MIT License.
  */
 
+
 //!	file system interface to Haiku's vnode layer
 
 
@@ -1810,12 +1811,18 @@ bfs_write_attr(fs_volume* _volume, fs_vnode* _file, void* _cookie,
 	status_t status = attribute.Write(transaction, cookie, pos,
 		(const uint8*)buffer, _length);
 	if (status == B_OK) {
+		// Update status time on attribute write
+		inode->Node().status_change_time = HOST_ENDIAN_TO_BFS_INT64(
+			bfs_inode::ToInode(real_time_clock_usecs()));
+		inode->WriteBack(transaction);
+
 		status = transaction.Done();
 		if (status == B_OK) {
 			notify_attribute_changed(volume->ID(), inode->ID(), cookie->name,
 				B_ATTR_CHANGED);
 				// TODO: B_ATTR_CREATED is not yet taken into account
 				// (we don't know what Attribute::Write() does exactly)
+			notify_stat_changed(volume->ID(), inode->ID(), B_STAT_CHANGE_TIME);
 		}
 	}