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    Subject[PATCH 4.9 177/271] cifs: fix rmmod regression in cifs.ko caused by force_sig changes
    Date
    From: Steve French <stfrench@microsoft.com>

    [ Upstream commit 247bc9470b1eeefc7b58cdf2c39f2866ba651509 ]

    Fixes: 72abe3bcf091 ("signal/cifs: Fix cifs_put_tcp_session to call send_sig instead of force_sig")

    The global change from force_sig caused module unloading of cifs.ko
    to fail (since the cifsd process could not be killed, "rmmod cifs"
    now would always fail)

    Signed-off-by: Steve French <stfrench@microsoft.com>
    Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com>
    CC: Eric W. Biederman <ebiederm@xmission.com>
    Signed-off-by: Sasha Levin <sashal@kernel.org>
    ---
    fs/cifs/connect.c | 1 +
    1 file changed, 1 insertion(+)

    diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
    index 110febd697379..7d46025d5e899 100644
    --- a/fs/cifs/connect.c
    +++ b/fs/cifs/connect.c
    @@ -885,6 +885,7 @@ cifs_demultiplex_thread(void *p)
    mempool_resize(cifs_req_poolp, length + cifs_min_rcv);

    set_freezable();
    + allow_signal(SIGKILL);
    while (server->tcpStatus != CifsExiting) {
    if (try_to_freeze())
    continue;
    --
    2.20.1


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