Harald Freudenberger f06ce8ddbd s390/zcrypt: return EIO when msg retry limit reached ... [ Upstream commit d39fae45c97c67b1b4da04773f2bb5a2f29088c4 ] When a msg is retried because the lower ap layer returns -EAGAIN there is a retry limit (currently 10). When this limit is reached the last return code from the lower layer is returned, causing the userspace to get -1 on the ioctl with errno EAGAIN. This EAGAIN is misleading here. After 10 retry attempts the userspace should receive a clear failure indication like EINVAL or EIO or ENODEV. However, the reason why these retries all fail is unclear. On an invalid message EINVAL would be returned by the lower layer, and if devices go away or are not available an ENODEV is seen. So this patch now reworks the retry loops to return EIO to userspace when the retry limit is reached. Fixes: 91ffc519c1 ("s390/zcrypt: introduce msg tracking in zcrypt functions") Signed-off-by: Harald Freudenberger <freude@linux.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com> Signed-off-by: Sasha Levin <sashal@kernel.org>		2021-03-04 11:37:48 +01:00
..
block	s390/dasd: fix list corruption of lcu list	2020-12-30 11:54:09 +01:00
char	s390 updates for the 5.10 merge window	2020-10-16 12:36:38 -07:00
cio	s390/cio: fix use-after-free in ccw_device_destroy_console	2020-12-30 11:53:46 +01:00
crypto	s390/zcrypt: return EIO when msg retry limit reached	2021-03-04 11:37:48 +01:00
net	s390/qeth: fix L2 header access in qeth_l3_osa_features_check()	2021-01-17 14:16:58 +01:00
scsi	s390 updates for the 5.10 merge window	2020-10-16 12:36:38 -07:00
virtio
Makefile