summaryrefslogtreecommitdiff
path: root/drivers/char/random.c
diff options
context:
space:
mode:
authorStephan Mueller <smueller@chronox.de>2016-05-02 06:14:34 (GMT)
committerTheodore Ts'o <tytso@mit.edu>2016-06-13 15:54:33 (GMT)
commit4b44f2d18a330565227a7348844493c59366171e (patch)
tree5a995230ac3e2e56bc3042385a2f585c31e9389d /drivers/char/random.c
parent9b4d008787f864f17d008c9c15bbe8a0f7e2fc24 (diff)
downloadlinux-4b44f2d18a330565227a7348844493c59366171e.tar.xz
random: add interrupt callback to VMBus IRQ handler
The Hyper-V Linux Integration Services use the VMBus implementation for communication with the Hypervisor. VMBus registers its own interrupt handler that completely bypasses the common Linux interrupt handling. This implies that the interrupt entropy collector is not triggered. This patch adds the interrupt entropy collection callback into the VMBus interrupt handler function. Cc: stable@kernel.org Signed-off-by: Stephan Mueller <stephan.mueller@atsec.com> Signed-off-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Diffstat (limited to 'drivers/char/random.c')
-rw-r--r--drivers/char/random.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/char/random.c b/drivers/char/random.c
index d057438..68f18d4 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -946,6 +946,7 @@ void add_interrupt_randomness(int irq, int irq_flags)
/* award one bit for the contents of the fast pool */
credit_entropy_bits(r, credit + 1);
}
+EXPORT_SYMBOL_GPL(add_interrupt_randomness);
#ifdef CONFIG_BLOCK
void add_disk_randomness(struct gendisk *disk)