On Thu, Feb 03, 2005 at 08:37:19AM -0800, Badari Pulavarty wrote: > Hi Andrew, > > I was wondering why mpage_writepage() is only "static" ? > > Is the expectation that, filesystems use > > .writepage == block_full_write_page > .writepages == mpage_writepages > > ? I am little confused on why we have 2 different ways to > do things ? block_full_write_page() seems to be creating > buffer heads, where as mpage_writepages() can do directly > bios. Shouldn't they be using mpage_writepage() instead of > block_full_write_page() ? >
I was wondering the same thing too. My only guess is that if you keep the buffer_head attached to the page, then you don't need to call get_block again if you write the same page back, and I suppose the fs get_block function could be expensive and/or require I/O. Sonny - To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
