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| author |   Patrick McHardy <kaber@trash.net> | 2013-04-17 06:47:00 +0000 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2013-04-19 14:57:57 -0400 |
| commit | cf0a018ac669955c10e4fca24fa55dde58434e9a (patch) | |
| tree | b2c087fe536127cf30639a773a8da78452994041 /net/Kconfig | |
| parent | netlink: don't orphan skb in netlink_trim() (diff) | |
| download | linux-dev-cf0a018ac669955c10e4fca24fa55dde58434e9a.tar.xz linux-dev-cf0a018ac669955c10e4fca24fa55dde58434e9a.zip | |
netlink: add netlink_skb_set_owner_r()
For mmap'ed I/O a netlink specific skb destructor needs to be invoked
after the final kfree_skb() to clean up state. This doesn't work currently
since the skb's ownership is transfered to the receiving socket using
skb_set_owner_r(), which orphans the skb, thereby invoking the destructor
prematurely.
Since netlink doesn't account skbs to the originating socket, there's no
need to orphan the skb. Add a netlink specific skb_set_owner_r() variant
that does not orphan the skb and use a netlink specific destructor to
call sock_rfree().
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/Kconfig')
0 files changed, 0 insertions, 0 deletions