Alejandro Lucero 84e7477e10 mem: add thread unsafe version for DMA mask check
During memory initialization calling rte_mem_check_dma_mask
leads to a deadlock because memory_hotplug_lock is locked by a
writer, the current code in execution, and rte_memseg_walk
tries to lock as a reader.

This patch adds a thread_unsafe version which will call the final
function specifying the memory_hotplug_lock does not need to be
acquired. The patch also modified rte_mem_check_dma_mask as a
intermediate step which will call the final function as before,
implying memory_hotplug_lock will be acquired.

PMDs should always use the version acquiring the lock with the
thread_unsafe one being just for internal EAL memory code.

Fixes: 223b7f1d5ef6 ("mem: add function for checking memseg IOVA")

Signed-off-by: Alejandro Lucero <alejandro.lucero@netronome.com>
Tested-by: Ferruh Yigit <ferruh.yigit@intel.com>
2018-11-05 01:02:14 +01:00
..
2018-10-25 11:27:49 +02:00
2018-10-26 22:14:06 +02:00
2018-10-12 19:33:02 +02:00
2018-10-24 15:12:33 +02:00
2018-10-27 15:18:20 +02:00