On Sat, Jun 23, 2007 at 11:07:54PM -0400, Jeff Garzik wrote: > >- In line with the above item, filesystem block allocation is performed > > before a page is dirtied. In the buffer layer, mmap writes can dirty a > > page with no backing blocks which is a problem if the filesystem is > > ENOSPC (patches exist for buffer.c for this). > > This raises an eyebrow... The handling of ENOSPC prior to mmap write is > more an ABI behavior, so I don't see how this can be fixed with internal > changes, yet without changing behavior currently exported to userland > (and thus affecting code based on such assumptions). Not really, the current behaviour is a bug. And it's not actually buffer layer specific - XFS now has a fix for that bug and it's generic enough that everyone could use it. - To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
