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authorChristoph Lameter <clameter@engr.sgi.com>2006-03-14 22:50:19 -0500
committerLinus Torvalds <torvalds@g5.osdl.org>2006-03-15 00:43:02 -0500
commit4983da07f1e2e8dc81cb9d640fbf35b899cdbdf2 (patch)
tree9c238114f029d1d22bc55f47e8d95ef7335c540d /fs/ext2
parente843e280cbe218fc8387339806d344708dee348a (diff)
[PATCH] page migration: fail if page is in a vma flagged VM_LOCKED
page migration currently simply retries a couple of times if try_to_unmap() fails without inspecting the return code. However, SWAP_FAIL indicates that the page is in a vma that has the VM_LOCKED flag set (if ignore_refs ==1). We can check for that return code and avoid retrying the migration. migrate_page_remove_references() now needs to return a reason why the failure occured. So switch migrate_page_remove_references to use -Exx style error messages. Signed-off-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'fs/ext2')
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