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authorTom Herbert <tom@herbertland.com>2016-08-23 20:55:31 +0200
committerDavid S. Miller <davem@davemloft.net>2016-08-24 01:23:12 +0200
commit1616b38f201945f5fc88aa09b525e3625777aa7c (patch)
tree0d5f890a7b0d21fa7c4d7580a70e0bfcae2c0738 /net/kcm/kcmproc.c
parentstrparser: Queue work when being unpaused (diff)
downloadlinux-1616b38f201945f5fc88aa09b525e3625777aa7c.tar.xz
linux-1616b38f201945f5fc88aa09b525e3625777aa7c.zip
kcm: Fix locking issue
Lock the lower socket in kcm_unattach. Release during call to strp_done since that function cancels the RX timers and work queue with sync. Also added some status information in psock reporting. Signed-off-by: Tom Herbert <tom@herbertland.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/kcm/kcmproc.c')
-rw-r--r--net/kcm/kcmproc.c20
1 files changed, 15 insertions, 5 deletions
diff --git a/net/kcm/kcmproc.c b/net/kcm/kcmproc.c
index 47e445364f4f..bf75c9231cca 100644
--- a/net/kcm/kcmproc.c
+++ b/net/kcm/kcmproc.c
@@ -173,14 +173,24 @@ static void kcm_format_psock(struct kcm_psock *psock, struct seq_file *seq,
if (psock->strp.rx_stopped)
seq_puts(seq, "RxStop ");
- if (psock->strp.rx_paused)
- seq_puts(seq, "RxPause ");
-
if (psock->tx_kcm)
seq_printf(seq, "Rsvd-%d ", psock->tx_kcm->index);
- if (psock->ready_rx_msg)
- seq_puts(seq, "RdyRx ");
+ if (!psock->strp.rx_paused && !psock->ready_rx_msg) {
+ if (psock->sk->sk_receive_queue.qlen) {
+ if (psock->strp.rx_need_bytes)
+ seq_printf(seq, "RxWait=%u ",
+ psock->strp.rx_need_bytes);
+ else
+ seq_printf(seq, "RxWait ");
+ }
+ } else {
+ if (psock->strp.rx_paused)
+ seq_puts(seq, "RxPause ");
+
+ if (psock->ready_rx_msg)
+ seq_puts(seq, "RdyRx ");
+ }
seq_puts(seq, "\n");
}