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(parent: 1954e9a) | patch
Blktrace: bail out early if block debugfs is not configured
authorLiu Bo <bo.liu@linux.alibaba.com>
Fri, 29 Jun 2018 01:56:08 +0000 (09:56 +0800)
committerJens Axboe <axboe@kernel.dk>
Mon, 9 Jul 2018 15:07:52 +0000 (09:07 -0600)
commite1a413245a564683697a3d02ec197b72cf009b89
tree13f7fc57e754cd37e299f70158d8c5943d553718tree
parent1954e9a998d59d08520d7d4bebeafb8f66ba0d0fcommit | diff
Blktrace: bail out early if block debugfs is not configured

Since @blk_debugfs_root couldn't be configured dynamically, we can
save a few memory allocation if it's not there.

Signed-off-by: Liu Bo <bo.liu@linux.alibaba.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
kernel/trace/blktrace.c diff | blob | blame | history
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