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(parent: b657d7e) | patch
blk: introduce generic io stat accounting help function
authorGu Zheng <guz.fnst@cn.fujitsu.com>
Mon, 24 Nov 2014 03:05:22 +0000 (11:05 +0800)
committerJens Axboe <axboe@fb.com>
Mon, 24 Nov 2014 15:04:44 +0000 (08:04 -0700)
commit394ffa503bc40e32d7f54a9b817264e81ce131b4
tree551aa110ea3ef7519d7a5ea444ac9c9640de4234tree | snapshot (tar.gz zip)
parentb657d7e632e0bc40e5e231332be39d69b2f1a0bbcommit | diff
blk: introduce generic io stat accounting help function

Many block drivers accounting io stat based on bio (e.g. NVMe...),
the blk_account_io_start/end() which is based on request
does not make sense to them, so here we introduce the similar help
function named generic_start/end_io_acct base on raw sectors, and it can
simplify some driver's open io accounting code.

Signed-off-by: Gu Zheng <guz.fnst@cn.fujitsu.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
block/bio.c diff | blob | blame | history
include/linux/bio.h diff | blob | blame | history