lkml.org 
[lkml]   [2009]   [Jun]   [8]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    From
    Subject[PATCH 4/5] sctp: protocol.c call rcu_barrier() on unload.
    Date
    On module unload call rcu_barrier(), this is needed as synchronize_rcu()
    is not strong enough. The kmem_cache_destroy() does invoke
    synchronize_rcu() but it does not provide same protection.

    Signed-off-by: Jesper Dangaard Brouer <hawk@comx.dk>
    ---

    net/sctp/protocol.c | 2 ++
    1 files changed, 2 insertions(+), 0 deletions(-)

    diff --git a/net/sctp/protocol.c b/net/sctp/protocol.c
    index cb2c50d..79cbd47 100644
    --- a/net/sctp/protocol.c
    +++ b/net/sctp/protocol.c
    @@ -1370,6 +1370,8 @@ SCTP_STATIC __exit void sctp_exit(void)
    sctp_proc_exit();
    cleanup_sctp_mibs();

    + rcu_barrier(); /* Wait for completion of call_rcu()'s */
    +
    kmem_cache_destroy(sctp_chunk_cachep);
    kmem_cache_destroy(sctp_bucket_cachep);
    }


    \
     
     \ /
      Last update: 2009-06-08 15:37    [W:0.019 / U:30.464 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site