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| author |   Carsten Otte <cotte@de.ibm.com> | 2011-12-01 13:32:16 +0100 |
|---|---|---|
| committer |   Martin Schwidefsky <schwidefsky@de.ibm.com> | 2011-12-01 13:32:17 +0100 |
| commit | 7c81878b34dd1b75dec5c8b68951d1439854d358 (patch) | |
| tree | b8b9ad4c00279d8fc0f0402704fc580b1cbc092c /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | [S390] ptrace inferior call interactions with TIF_SYSCALL (diff) | |
| download | linux-dev-7c81878b34dd1b75dec5c8b68951d1439854d358.tar.xz linux-dev-7c81878b34dd1b75dec5c8b68951d1439854d358.zip | |
[S390] fix page change underindication in pgste_update_all
This patch makes sure we don't underindicate _PAGE_CHANGED in case
we have a race between an operation that changes the page and this
code path that hits us between page_get_storage_key and
page_set_storage_key. Note that we still have a potential
underindication on _PAGE_REFERENCED in the unlikely event that
the page was changed but not referenced _and_ someone references
the page in the race window. That's not considered to be a problem.
Signed-off-by: Carsten Otte <cotte@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions