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| author | Menglong Dong <imagedong@tencent.com> | 2022-01-09 14:36:26 +0800 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2022-01-09 16:30:34 -0800 |
| commit | c504e5c2f9648a1e5c2be01e8c3f59d394192bd3 (patch) | |
| tree | 7b0bfa659d35796ab251cccfc8ad6e9ed264df89 /lib/sg_split.c | |
| parent | 342402c426902c59491b43d3056a1039e5ca02db (diff) | |
| download | linux-c504e5c2f9648a1e5c2be01e8c3f59d394192bd3.tar.bz2 | |
net: skb: introduce kfree_skb_reason()
Introduce the interface kfree_skb_reason(), which is able to pass
the reason why the skb is dropped to 'kfree_skb' tracepoint.
Add the 'reason' field to 'trace_kfree_skb', therefor user can get
more detail information about abnormal skb with 'drop_monitor' or
eBPF.
All drop reasons are defined in the enum 'skb_drop_reason', and
they will be print as string in 'kfree_skb' tracepoint in format
of 'reason: XXX'.
( Maybe the reasons should be defined in a uapi header file, so that
user space can use them? )
Signed-off-by: Menglong Dong <imagedong@tencent.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'lib/sg_split.c')
0 files changed, 0 insertions, 0 deletions