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| author | Mikulas Patocka <mpatocka@redhat.com> | 2009-06-22 13:12:19 +0400 |
|---|---|---|
| committer | Alasdair G Kergon <agk@redhat.com> | 2009-06-22 13:12:19 +0400 |
| commit | fdb9572b73abd008b80931c3b1f157dac3888bb9 (patch) | |
| tree | ae84d6ed1c97e77d536d0bcf2e25fa35d5cbfcba /tools/perf/scripts/python/syscall-counts.py | |
| parent | 5aa2781d964e9835c441932110484bc454b5c207 (diff) | |
| download | linux-fdb9572b73abd008b80931c3b1f157dac3888bb9.tar.xz | |
dm: remove EOPNOTSUPP for barriers
If the underlying device doesn't support barriers and dm receives a
barrier, it waits until all requests on that device drain so it no
longer needs to report -EOPNOTSUPP to the caller.
This patch deals with the confusing situation when moving a volume from
one physical device to another triggers an EOPNOTSUPP on a volume that
didn't report it before.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Diffstat (limited to 'tools/perf/scripts/python/syscall-counts.py')
0 files changed, 0 insertions, 0 deletions