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Subject[PATCH RESEND 07/11] kcm: kcm_splice_read: always request MSG_DONTWAIT
Otherwise we risk sleeping with the pipe locked for indeterminate
lengths of time.

Also: don't pass the SPLICE_F_*-style flags argument to
skb_recv_datagram(), which expects MSG_*-style flags.
This fixes SPLICE_F_NONBLOCK not having worked.

Link: https://lore.kernel.org/linux-fsdevel/qk6hjuam54khlaikf2ssom6custxf5is2ekkaequf4hvode3ls@zgf7j5j4ubvw/t/#u
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
---
net/kcm/kcmsock.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/kcm/kcmsock.c b/net/kcm/kcmsock.c
index dd1d8ffd5f59..de70156869e6 100644
--- a/net/kcm/kcmsock.c
+++ b/net/kcm/kcmsock.c
@@ -1028,7 +1028,7 @@ static ssize_t kcm_splice_read(struct socket *sock, loff_t *ppos,

/* Only support splice for SOCKSEQPACKET */

- skb = skb_recv_datagram(sk, flags, &err);
+ skb = skb_recv_datagram(sk, MSG_DONTWAIT, &err);
if (!skb)
goto err_out;

--
2.39.2[unhandled content-type:application/pgp-signature]
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