staging: lustre: replace cfs_srand() calls with add_device_randomness().

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The only places that cfs_srand is called, the random bits are
mixed with bits from get_random_bytes().  So it is equally effective
to add entropy to either pool.
So we can replace calls to cfs_srand() with calls that add the
entropy with add_device_randomness().  That function adds time-based
entropy, so we can discard the ktime_get_ts64 calls.

One location in lustre_handles.c only adds timebased
entropy.  This cannot improve the entropy provided by get_random_bytes(),
so just discard that call.

Signed-off-by: NeilBrown <neilb@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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NeilBrown 2017-12-18 12:41:42 +11:00 • committed by Greg Kroah-Hartman

parent bcfa98a507

commit 30f4236aaf

3 changed files with 13 additions and 26 deletions

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15

drivers/staging/lustre/lnet/lnet/router.c

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17

drivers/staging/lustre/lustre/llite/super25.c

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7

drivers/staging/lustre/lustre/obdclass/lustre_handles.c

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