Files
android_kernel_xiaomi_sm8450/include/linux
Tejun Heo 93f78d8828 writeback: move backing_dev_info->bdi_stat[] into bdi_writeback
Currently, a bdi (backing_dev_info) embeds single wb (bdi_writeback)
and the role of the separation is unclear.  For cgroup support for
writeback IOs, a bdi will be updated to host multiple wb's where each
wb serves writeback IOs of a different cgroup on the bdi.  To achieve
that, a wb should carry all states necessary for servicing writeback
IOs for a cgroup independently.

This patch moves bdi->bdi_stat[] into wb.

* enum bdi_stat_item is renamed to wb_stat_item and the prefix of all
  enums is changed from BDI_ to WB_.

* BDI_STAT_BATCH() -> WB_STAT_BATCH()

* [__]{add|inc|dec|sum}_wb_stat(bdi, ...) -> [__]{add|inc}_wb_stat(wb, ...)

* bdi_stat[_error]() -> wb_stat[_error]()

* bdi_writeout_inc() -> wb_writeout_inc()

* stat init is moved to bdi_wb_init() and bdi_wb_exit() is added and
  frees stat.

* As there's still only one bdi_writeback per backing_dev_info, all
  uses of bdi->stat[] are mechanically replaced with bdi->wb.stat[]
  introducing no behavior changes.

Signed-off-by: Tejun Heo <tj@kernel.org>
Reviewed-by: Jan Kara <jack@suse.cz>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Wu Fengguang <fengguang.wu@intel.com>
Cc: Miklos Szeredi <miklos@szeredi.hu>
Cc: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
2015-06-02 08:33:34 -06:00
..
2015-03-29 16:17:10 +01:00
2014-11-24 17:24:08 -05:00
2015-01-29 10:49:28 +02:00
2015-04-07 11:17:34 +02:00
2015-03-25 20:28:11 -04:00
2015-06-02 08:33:34 -06:00
2015-04-17 09:03:53 -04:00
2015-06-01 14:35:56 -06:00
2015-03-11 15:56:59 -07:00
2015-04-16 12:33:51 +09:30
2015-02-12 18:54:15 -08:00
2014-12-19 22:55:06 +01:00
2015-01-21 19:21:30 +01:00
2014-11-10 09:27:30 -07:00
2015-03-02 16:43:41 -05:00
2014-12-31 13:06:50 -05:00
2014-10-09 11:35:48 +03:00
2014-10-08 16:01:41 -04:00
2015-02-18 15:08:33 +01:00
2015-03-16 21:45:54 +11:00
2015-04-03 16:18:02 +02:00
2015-05-05 13:40:42 -06:00
2015-01-27 11:09:13 +01:00
2015-01-15 10:34:54 +01:00
2015-01-15 10:34:54 +01:00
2015-02-13 21:21:36 -08:00
2014-12-18 09:39:51 +01:00
2015-01-04 23:11:43 -05:00
2015-04-14 16:49:05 -07:00
2015-03-25 11:44:52 +01:00
2015-04-17 09:04:07 -04:00
2014-10-09 22:25:58 -04:00
2015-03-31 12:04:12 +02:00
2015-04-23 14:36:28 -04:00
2015-03-11 17:56:28 -04:00
2014-11-04 13:29:38 +00:00
2015-04-12 21:03:31 +02:00
2015-01-25 23:17:28 -05:00
2015-02-17 14:34:52 -08:00
2015-01-06 11:01:13 -08:00
2015-02-24 08:44:16 +01:00
2015-03-26 18:18:20 +01:00
2015-04-25 15:49:49 -04:00
2015-02-13 21:21:41 -08:00
2015-03-11 21:55:28 -04:00
2015-04-11 15:53:35 -04:00
2015-01-03 14:32:57 -05:00
2015-02-13 21:21:35 -08:00
2015-05-19 09:19:59 -06:00
2015-03-25 13:28:58 +01:00
2015-04-11 22:29:44 -04:00
2014-11-28 16:08:16 +01:00
2014-12-09 12:05:24 +02:00
2014-12-15 23:49:28 +02:00
2015-03-24 09:48:14 -07:00
2015-04-15 16:35:20 -07:00