diff options
| author | Alexander Usyskin <alexander.usyskin@intel.com> | 2018-02-25 19:07:05 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-03-14 19:33:13 +0100 |
| commit | af336cabe08363ba8493e7d7e5d070353eb30caa (patch) | |
| tree | 003025b642d6dcfab2a2f5ba220ce69ee69def65 /drivers/misc/mei/init.c | |
| parent | mei: make module referencing local to the bus.c (diff) | |
| download | linux-af336cabe08363ba8493e7d7e5d070353eb30caa.tar.xz linux-af336cabe08363ba8493e7d7e5d070353eb30caa.zip | |
mei: limit the number of queued writes
Limit the number of queued writes per client.
Writes above this threshold are blocked till place
in the transmit queue is available.
The limit is configurable via sysfs and defaults to 50.
The implementation should provide blocking I/O behavior.
Prior to this change one would end up in the hands of OOM.
Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/misc/mei/init.c')
| -rw-r--r-- | drivers/misc/mei/init.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/misc/mei/init.c b/drivers/misc/mei/init.c index c46f6e99a55e..4888ebc076b7 100644 --- a/drivers/misc/mei/init.c +++ b/drivers/misc/mei/init.c @@ -383,6 +383,7 @@ void mei_device_init(struct mei_device *dev, INIT_LIST_HEAD(&dev->write_waiting_list); INIT_LIST_HEAD(&dev->ctrl_wr_list); INIT_LIST_HEAD(&dev->ctrl_rd_list); + dev->tx_queue_limit = MEI_TX_QUEUE_LIMIT_DEFAULT; INIT_DELAYED_WORK(&dev->timer_work, mei_timer); INIT_WORK(&dev->reset_work, mei_reset_work); |