diff options
| author | Russ Gorby <[email protected]> | 2012-08-13 13:44:40 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <[email protected]> | 2012-08-16 12:03:30 -0700 |
| commit | 5e44708f75b0f8712da715d6babb0c21089b2317 (patch) | |
| tree | e5f4f2ecd25649b5d47589ba2cf919c4e92ed222 /tools/perf/scripts/python/check-perf-trace.py | |
| parent | 10c6c383e43565c9c6ec07ff8eb2825f8091bdf0 (diff) | |
n_gsm: added interlocking for gsm_data_lock for certain code paths
There were some locking holes in the management of the MUX's
message queue for 2 code paths:
1) gsmld_write_wakeup
2) receipt of CMD_FCON flow-control message
In both cases gsm_data_kick is called w/o locking so it can collide
with other other instances of gsm_data_kick (pulling messages tx_tail)
or potentially other instances of __gsm_data_queu (adding messages to tx_head)
Changed to take the tx_lock in these 2 cases
Signed-off-by: Russ Gorby <[email protected]>
Tested-by: Yin, Fengwei <[email protected]>
Signed-off-by: Alan Cox <[email protected]>
Cc: Riding School <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/check-perf-trace.py')
0 files changed, 0 insertions, 0 deletions