xiaomi-sm8450/android_kernel_xiaomi_sm8450
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x25: remove the BKL

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This replaces all instances of lock_kernel in x25
with lock_sock, taking care to release the socket
lock around sleeping functions (sock_alloc_send_skb
and skb_recv_datagram). It is not clear whether
this is a correct solution, but it seem to be what
other protocols do in the same situation.

Includes a fix suggested by Eric Dumazet.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: David S. Miller <davem@davemloft.net>
Tested-by: Andrew Hendry <andrew.hendry@gmail.com>
Cc: linux-x25@vger.kernel.org
Cc: netdev@vger.kernel.org
Cc: Eric Dumazet <eric.dumazet@gmail.com>
This commit is contained in:
Arnd Bergmann
2011-01-22 23:44:59 +01:00
parent 788257d610
commit 77b2283604
3 changed files with 23 additions and 43 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
net/x25/x25_out.c
View File

@@ -68,8 +68,11 @@ int x25_output(struct sock *sk, struct sk_buff *skb)
frontlen = skb_headroom(skb);
while (skb->len > 0) {
if ((skbn = sock_alloc_send_skb(sk, frontlen + max_len,
noblock, &err)) == NULL){
release_sock(sk);
skbn = sock_alloc_send_skb(sk, frontlen + max_len,
noblock, &err);
lock_sock(sk);
if (!skbn) {
if (err == -EWOULDBLOCK && noblock){
kfree_skb(skb);
return sent;