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    Subject[PATCH v6] Netfilter ring buffer support
    This patch set merges ipt_LOG and ip6t_LOG and adds ring buffer support
    to xt_LOG.

    Using "--ring" an user can create LOG rules which log messages into
    one or more ring buffers.
    Each ring buffer is represented as pipe-like file in

    Ring buffer support can be enabled/disabled using

    Changes since v1:
    - Merged ipt_LOG and ip6t_LOG
    - Implemented ring buffer support as part of xt_LOG.

    Changes since v2:
    - Fixed struct xt_log_info_v1's data layout
    - Removed the sizeof(void *) hack
    - Replaced BUG() by WARN_ON_ONCE()

    Changes since v3:
    - Merged xt_LOG_core.c and xt_LOG_ring.c into xt_LOG.c
    - Made happy

    Changes since v4:
    - Fixed a typo in include/linux/netfilter/Kbuild
    (Thanks Bastian!)

    Changes since v5:
    - Made timestamp support a separate patch
    - Renamed xt_LOG_ring to nf_log_ring
    - Removed unused prototypes from xt_log.h
    - Renamed find_next_entry_inc() to find_next_iter_entry()
    - Fixed OOM error path in rlog_open_pipe()

    Patch 1 and 2 have already been applied to net-next.git.

    [PATCH 1/6] Netfilter: Merge ipt_LOG and ip6_LOG into xt_LOG
    [PATCH 2/6] netfilter: xt_LOG: fix bogus extra layer-4 logging
    [PATCH 3/6] ring_buffer: Export for_each_buffer_cpu()
    [PATCH 4/6] xt_log: Make printk() in sb_close() optional
    [PATCH 5/6] Netfilter: xt_LOG: Implement ring buffer support
    [PATCH 6/6] Netfilter: xt_LOG: Add timestamp support


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