![]() | |||||||||||||
Messages in this thread |
Hi Ingo, Ingo Oeser wrote: > Hi Nick, > > On Thursday, 12. October 2006 14:07, Nick Piggin wrote: > >>Actually, filemap_xip needs some attention I think... if xip files >>can be truncated or invalidated (I assume they can), then we need to >>lock the page, validate that it is the correct one and not truncated, >>and return with it locked. > > > ??? > > Isn't XIP for "eXecuting In Place" from ROM or FLASH? Yes, I assume so. It seems that it isn't restricted to executing, but is basically a terminology to mean that it bypasses the pagecache. > How to truncate these? I thought the whole idea of > XIP was a pure RO mapping? Well, not filemap_xip. > > They should be valid from mount to umount. > > Regards > > Ingo Oeser, a bit puzzled about that... See mm/filemap_xip.c:xip_file_write, xip_truncate_page. Thanks, Nick -- SUSE Labs, Novell Inc. Send instant messages to your online friends http://au.messenger.yahoo.com - 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/ | ||||||||||||
| Last update: 2006-10-15 09:57 [from the cache] ©2003-2008 | |||||||||||||