On Tue, Apr 19, 2011 at 06:40:28AM -0500, Ben Myers wrote: > xfs_vm_writepage and xfs_page_convert set a page uptodate if it is determined > that all of the buffer_heads attached to that page are uptodate. > > Currently we use the flag variable 'uptodate'. The flag is initially set = 1 > and it is cleared if a !buffer_uptodate buffer is encountered. In addition we > check that bh == head in order to ensure that all of the buffer_heads have been > checked. However, it is possible to break out of the buffer_head loop early > having processed only the first buffer. This leaves uptodate == 1 and bh == > head, so the uptodate bit can be set on a page even if not all of the buffers > have been checked. This can lead to data corruption on platforms with > 1 > buffer per page. Dou have a testcase to reproduce this issue? _______________________________________________ xfs mailing list xfs@xxxxxxxxxxx http://oss.sgi.com/mailman/listinfo/xfs
