diff options
| author | Eric Dumazet <edumazet@google.com> | 2026-05-11 10:02:44 +0300 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2026-05-13 04:30:26 +0300 |
| commit | b588019e85f490696bf19f0747e93f14b1563927 (patch) | |
| tree | 69616dcd4929fdcd3e3e65bf7d2324210e4639c3 /include/uapi/linux | |
| parent | 9edbdd2c9d02667b3953997440036ea2ba932b4d (diff) | |
| download | linux-b588019e85f490696bf19f0747e93f14b1563927.tar.xz | |
rtnetlink: add RTEXT_FILTER_NAME_ONLY support
iproute2 can spend considerable amount of time in ll_init_map()
or ll_link_get() to dump verbose netdev attributes, contributing
to RTNL pressure.
Add RTEXT_FILTER_NAME_ONLY new flag so that rtnl_fill_ifinfo()
limits its output to:
- struct nlmsghdr
- IFLA_IFNAME
- IFLA_PROP_LIST (alternate names)
We can later avoid using RTNL when RTEXT_FILTER_NAME_ONLY
is requested, as none of these attributes need RTNL.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com>
Link: https://patch.msgid.link/20260511070244.971028-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'include/uapi/linux')
| -rw-r--r-- | include/uapi/linux/rtnetlink.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/uapi/linux/rtnetlink.h b/include/uapi/linux/rtnetlink.h index dab9493c791b..27265fd31e5f 100644 --- a/include/uapi/linux/rtnetlink.h +++ b/include/uapi/linux/rtnetlink.h @@ -840,6 +840,7 @@ enum { #define RTEXT_FILTER_CFM_CONFIG (1 << 5) #define RTEXT_FILTER_CFM_STATUS (1 << 6) #define RTEXT_FILTER_MST (1 << 7) +#define RTEXT_FILTER_NAME_ONLY (1 << 8) /* End of information exported to user level */ |