diff options
| author | Christoph Hellwig <hch@lst.de> | 2017-05-16 08:51:38 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-05-16 20:49:43 +0200 |
| commit | 19a0f7e37c0761a0a1cbf550705a6063c9675223 (patch) | |
| tree | 77de1cd40e2201a1dc04d92adb8c45224f64a7a1 /net/smc | |
| parent | smc: switch to usage of IB_PD_UNSAFE_GLOBAL_RKEY (diff) | |
| download | linux-19a0f7e37c0761a0a1cbf550705a6063c9675223.tar.xz linux-19a0f7e37c0761a0a1cbf550705a6063c9675223.zip | |
net/smc: Add warning about remote memory exposure
The driver explicitly bypasses APIs to register all memory once a
connection is made, and thus allows remote access to memory.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Acked-by: Ursula Braun <ubraun@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/smc')
| -rw-r--r-- | net/smc/Kconfig | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/net/smc/Kconfig b/net/smc/Kconfig index c717ef0896aa..33954852f3f8 100644 --- a/net/smc/Kconfig +++ b/net/smc/Kconfig @@ -8,6 +8,10 @@ config SMC The Linux implementation of the SMC-R solution is designed as a separate socket family SMC. + Warning: SMC will expose all memory for remote reads and writes + once a connection is established. Don't enable this option except + for tightly controlled lab environment. + Select this option if you want to run SMC socket applications config SMC_DIAG |