[PATCH v6 0/2] staging: ion: get one device per heap

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



version 6:
- add platform_bus and platform_bus_type when register Ion devices
  to make them appear in /sys/devices/platform.
- re-order include files in aphabetic order.

version 5:
- create a configuration flag to keep legacy Ion misc device

version 4:
- add a configuration flag to switch between legacy Ion misc device
  and one device per heap version.
  This change has been suggested after Laura talks at XDC 2017.

version 3:
- change ion_device_add_heap prototype to return a possible error.

version 2:
- simplify ioctl check like propose by Dan
- make sure that we don't register more than ION_DEV_MAX heaps.

Until now all ion heaps are addressing using the same device "/dev/ion".
This way of working doesn't allow to give access rights (for example with
SElinux rules) per heap.
This series propose to have one device "/dev/ionX" per heap.
Query heaps informations will be possible on each device node but
allocation request will only be possible if heap_mask_id match with device minor number.

Using legacy Ion misc device is still by setting ION_LEGACY_DEVICE_API
configuration flag.

Benjamin Gaignard (2):
  staging: ion: simplify ioctl args checking function
  staging: ion: create one device entry per heap

 drivers/staging/android/TODO            |  1 -
 drivers/staging/android/ion/Kconfig     |  7 +++++
 drivers/staging/android/ion/ion-ioctl.c | 29 +++++++++++++-----
 drivers/staging/android/ion/ion.c       | 53 ++++++++++++++++++++++++++-------
 drivers/staging/android/ion/ion.h       | 15 ++++++++--
 5 files changed, 84 insertions(+), 21 deletions(-)

-- 
2.7.4

--
To unsubscribe from this list: send the line "unsubscribe linux-api" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html



[Index of Archives]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]

  Powered by Linux