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null_blk: add an usage for shared tags in documentation
authorMinwoo Im <minwoo.im.dev@gmail.com>
Tue, 7 Nov 2017 16:25:37 +0000 (09:25 -0700)
committerJens Axboe <axboe@kernel.dk>
Tue, 7 Nov 2017 16:25:37 +0000 (09:25 -0700)
commitbf9fc98b736b8a3837040d5ce3a7caf04fa0859c
tree5ae41ac9c55b76ce9419af2183c56b11ec117b96
parente8815241173ebba4ccad490d4907b354b795fa5c
null_blk: add an usage for shared tags in documentation

Add usage explanation for a shared_tags, introduced by commit:

82f402fefa50 ("null_blk: add support for shared tags")

Signed-off-by: Minwoo Im <minwoo.im.dev@gmail.com>
Reworded slightly.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
Documentation/block/null_blk.txt