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authorMax Gurtovoy <mgurtovoy@nvidia.com>2020-11-25 15:27:36 +0300
committerChristoph Hellwig <hch@lst.de>2020-12-01 22:36:37 +0300
commit0068a7b010533872b6e71a376771dc310d90fa1c (patch)
tree5e7864c6d32cc2446f734500f642851046ab70e5 /drivers
parent6d65aeab7bf6e83e75f53cfdbdb84603e52e1182 (diff)
downloadlinux-0068a7b010533872b6e71a376771dc310d90fa1c.tar.xz
nvmet: make sure discovery change log event is protected
Generation counter is protected by nvmet_config_sem. Make sure the callers that call functions that might change it, are calling it properly. Signed-off-by: Max Gurtovoy <mgurtovoy@nvidia.com> Reviewed-by: Israel Rukshin <israelr@nvidia.com> Reviewed-by: Sagi Grimberg <sagi@grimberg.me> Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/nvme/target/discovery.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/nvme/target/discovery.c b/drivers/nvme/target/discovery.c
index f40c05c33c3a..682854e0e079 100644
--- a/drivers/nvme/target/discovery.c
+++ b/drivers/nvme/target/discovery.c
@@ -69,6 +69,7 @@ void nvmet_subsys_disc_changed(struct nvmet_subsys *subsys,
struct nvmet_port *port;
struct nvmet_subsys_link *s;
+ lockdep_assert_held(&nvmet_config_sem);
nvmet_genctr++;
list_for_each_entry(port, nvmet_ports, global_entry)