diff options
| author | John Greene <[email protected]> | 2012-12-19 09:47:48 +0000 |
|---|---|---|
| committer | David S. Miller <[email protected]> | 2012-12-19 14:30:59 -0800 |
| commit | 83c34fd00d0c3989466e95808bf12af9bf87e383 (patch) | |
| tree | 477e1bde4443e5708f4c1c7885c9c552dcd7d4d6 /tools/perf/util/scripting-engines/trace-event-python.c | |
| parent | f8b840344cbf4fa7212223b436adfb7559ca0e1e (diff) | |
8139cp: Prevent dev_close/cp_interrupt race on MTU change
commit: cb64edb6b89491edfdbae52ba7db9a8b8391d339 upstream
Above commit may introduce a race between cp_interrupt and dev_close
/ change MTU / dev_open up state. Changes cp_interrupt to tolerate
this. Change spin_locking in cp_interrupt to avoid possible
but unobserved race.
Reported-by: "Francois Romieu" <[email protected]>
Tested on virtual hardware, Tx MTU size up to 4096, max tx payload
was ping -s 4068 for MTU of 4096. No real hardware, need test
assist.
Signed-off-by: "John Greene" <[email protected]>
CC: "David S. Miller" <[email protected]>
CC: "David Woodhouse" <[email protected]>
Tested-by: David Woodhouse <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Diffstat (limited to 'tools/perf/util/scripting-engines/trace-event-python.c')
0 files changed, 0 insertions, 0 deletions