Mike Snitzer efc542e8fd UPSTREAM: block: disable entropy contributions for nonrot devices ... (cherry picked from commit b277da0a8a) 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: I8e9005feeedf301e486cf1aa13c804e322a3591b Signed-off-by: Mike Snitzer <snitzer@redhat.com> Signed-off-by: Jens Axboe <axboe@fb.com> Signed-off-by: Artem Borisov <dedsa2002@gmail.com>		2018-01-01 22:06:21 +03:00
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Kconfig	block: mtip32xx: remove HOTPLUG_PCI_PCIE dependancy	2012-04-12 08:47:05 +02:00
Makefile
mtip32xx.c	UPSTREAM: block: disable entropy contributions for nonrot devices	2018-01-01 22:06:21 +03:00
mtip32xx.h	mtip32xx: fix handling of commands in various scenarios	2012-04-09 08:35:39 +02:00