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vxlan: Read jiffies once when updating FDB 'used' time
authorIdo Schimmel <idosch@nvidia.com>
Tue, 4 Feb 2025 14:55:43 +0000 (16:55 +0200)
committerJakub Kicinski <kuba@kernel.org>
Thu, 6 Feb 2025 02:53:57 +0000 (18:53 -0800)
commit1370c45d6e7e3cbac4b6dc71f54fd6e167848900
tree357247b5350ca57475cbd3f4623db9f18cae3a7dtree
parentf6205f8215f12a96518ac9469ff76294ae7bd612commit | diff
vxlan: Read jiffies once when updating FDB 'used' time

Avoid two volatile reads in the data path. Instead, read jiffies once
and only if an FDB entry was found.

Reviewed-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Nikolay Aleksandrov <razor@blackwall.org>
Link: https://patch.msgid.link/20250204145549.1216254-3-idosch@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
drivers/net/vxlan/vxlan_core.c diff | blob | history
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