Mike Snitzer b636eb75ff UPSTREAM: block: disable entropy contributions for nonrot devices ... (cherry picked from commit b277da0a8a594308e17881f4926879bd5fca2a2d) Clear QUEUE_FLAG_ADD_RANDOM in all block drivers that set QUEUE_FLAG_NONROT. Historically, all block devices have automatically made entropy contributions. But as previously stated in commit e2e1a148 ("block: add sysfs knob for turning off disk entropy contributions"): - On SSD disks, the completion times aren't as random as they are for rotational drives. So it's questionable whether they should contribute to the random pool in the first place. - Calling add_disk_randomness() has a lot of overhead. There are more reliable sources for randomness than non-rotational block devices. From a security perspective it is better to err on the side of caution than to allow entropy contributions from unreliable "random" sources. Change-Id: Iaace159bea0e9245e6825cccd4f6a1152a166ce1 Signed-off-by: Mike Snitzer <snitzer@redhat.com> Signed-off-by: Jens Axboe <axboe@fb.com>		2019-07-27 21:47:56 +02:00
..
block	UPSTREAM: block: disable entropy contributions for nonrot devices	2019-07-27 21:47:56 +02:00
char	s390/3215: fix tty output containing tabs	2015-01-27 07:52:33 -08:00
cio	s390/chsc: fix SEI usage on old FW levels	2014-05-13 13:59:42 +02:00
crypto	crypto: prefix module autoloading with "crypto-"	2015-01-29 17:40:57 -08:00
kvm	Merge tag 'kvm-3.10-1' of git://git.kernel.org/pub/scm/virt/kvm/kvm	2013-05-05 14:47:31 -07:00
net	qeth: avoid buffer overflow in snmp ioctl	2013-12-04 10:56:37 -08:00
scsi	scsi: zfcp: trace HBA FSF response by default on dismiss or timedout late response	2019-07-27 21:44:18 +02:00
Makefile	…