Messages in this thread | | | Date | Fri, 2 Jun 2006 23:06:03 +0200 | From | Olaf Hering <> | Subject | Re: [PATCH] cramfs corruption after BLKFLSBUF on loop device |
| |
On Fri, Jun 02, Andrew Morton wrote:
> Oh, OK, we cannot use read_cache_page(). Because the above is still racy > (and still needs the retry loop). We need to set PG_checked before > launching the read. Something like: > > /* > * Return a locked, uptodate, !PagePrivate, !PageChecked page which needs a > * single put_page by the caller. > */ > cramfs_read_getpage() > { > page = find_lock_page() > if (PageUptodate(page)) > return page; > SetPagePrivate() > SetPageChecked() > err = m->a_ops->readpage(page);
I guess we have to put a find_or_create_page in there, and fill it. Will try that tomorrow. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |