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authorOmar Sandoval <osandov@fb.com>2018-05-09 02:08:50 -0700
committerJens Axboe <axboe@kernel.dk>2018-05-09 08:33:05 -0600
commit544ccc8dc904db55d4576c27a1eb66a888ffacea (patch)
tree5fa92e3cf1a5d33eddc61dfd65d088dd5cdb6f84 /samples
parent5238dcf4136fd7287be8e7d38752645bfa5782ec (diff)
block: get rid of struct blk_issue_stat
struct blk_issue_stat squashes three things into one u64: - The time the driver started working on a request - The original size of the request (for the io.low controller) - Flags for writeback throttling It turns out that on x86_64, we have a 4 byte hole in struct request which we can fill with the non-timestamp fields from blk_issue_stat, simplifying things quite a bit. Signed-off-by: Omar Sandoval <osandov@fb.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
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