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block: readd plug trace event
authorJens Axboe <jaxboe@fusionio.com>
Tue, 12 Apr 2011 08:28:28 +0000 (10:28 +0200)
committerJens Axboe <jaxboe@fusionio.com>
Tue, 12 Apr 2011 08:28:28 +0000 (10:28 +0200)
commit5e4366c784e704b07d2f61e717e6e616e4a9449b
tree88062deeeb7f8d6973056422f08d47f8c5a27c51tree | snapshot
parent714df06cc9ee2feb3377a2c8e53899a7768d86b6commit | diff
block: readd plug trace event

This was removed with the queue plug state. But we can easily readd
by checking if this is the first request going to this queue. It's
good information to have when tracing to see how effective the
plugging is.

Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
block/blk-core.c diff | blob | history
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