diff options
| author | Dexuan Cui <decui@microsoft.com> | 2015-12-14 16:01:47 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-09-15 08:27:40 +0200 |
| commit | ff83d7914b749f8c654c0e08d21667035901ab75 (patch) | |
| tree | 6a8bf43103f2fe841ba72e18d27b9debf6ca5c64 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | bf59c816fb104b2e92d29f8c13f1118f4c5333c4 (diff) | |
Drivers: hv: vmbus: serialize process_chn_event() and vmbus_close_internal()
[ Upstream commit 63d55b2aeb5e4faa170316fee73c3c47ea9268c7 ]
process_chn_event(), running in the tasklet, can race with
vmbus_close_internal() in the case of SMP guest, e.g., when the former is
accessing channel->inbound.ring_buffer, the latter could be freeing the
ring_buffer pages.
To resolve the race, we can serialize them by disabling the tasklet when
the latter is running here.
Signed-off-by: Dexuan Cui <decui@microsoft.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions