Re: [PATCH 12/12] xfs: eagerly remove vmap mappings to avoid upsetting Xen

2007-10-16 Thread David Chinner
On Mon, Oct 15, 2007 at 01:48:52PM -0700, Jeremy Fitzhardinge wrote: > XFS leaves stray mappings around when it vmaps memory to make it > virtually contigious. This upsets Xen if one of those pages is being > recycled into a pagetable, since it finds an extra writable mapping of > the page. > > T

[PATCH 12/12] xfs: eagerly remove vmap mappings to avoid upsetting Xen

2007-10-15 Thread Jeremy Fitzhardinge
XFS leaves stray mappings around when it vmaps memory to make it virtually contigious. This upsets Xen if one of those pages is being recycled into a pagetable, since it finds an extra writable mapping of the page. This patch solves the problem in a brute force way, by making XFS always eagerly u