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| author |   Alex Elder <elder@inktank.com> | 2013-05-31 15:17:01 -0500 |
|---|---|---|
| committer |   Sage Weil <sage@inktank.com> | 2013-07-03 15:32:41 -0700 |
| commit | 751cc0e3cfabdda87c4c21519253c6751e97a8d4 (patch) | |
| tree | 8d4761447d8b8c2e8da9b7d6dd83e9bb8a63bc6e /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | libceph: print more info for short message header (diff) | |
| download | linux-dev-751cc0e3cfabdda87c4c21519253c6751e97a8d4.tar.xz linux-dev-751cc0e3cfabdda87c4c21519253c6751e97a8d4.zip | |
rbd: set removing flag while holding list lock
When unmapping a device, its id is supplied, and that is used to
look up which rbd device should be unmapped. Looking up the
device involves searching the rbd device list while holding
a spinlock that protects access to that list.
Currently all of this is done under protection of the control lock,
but that protection is going away soon. To ensure the rbd_dev is
still valid (still on the list) while setting its REMOVING flag, do
so while still holding the list lock. To do so, get rid of
__rbd_get_dev(), and open code what it did in the one place it
was used.
Signed-off-by: Alex Elder <elder@inktank.com>
Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions