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swh:1:snp:77163734605b0ec556b01d897b7bb4a7e30d46b6
Revision 4983da07f1e2e8dc81cb9d640fbf35b899cdbdf2 authored by Christoph Lameter on 15 March 2006, 03:50:19 UTC, committed by Linus Torvalds on 15 March 2006, 05:43:02 UTC 
[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>
1 parent e843e28
History
Tip revision: a4412fdd49dc011bcc2c0d81ac4cab7457092650 authored by Steven Rostedt (Google) on 21 November 2022, 15:44:03 UTC
error-injection: Add prompt for function error injection
Tip revision: a4412fd
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