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| author |   Coly Li <colyli@suse.de> | 2019-11-13 16:03:23 +0800 |
|---|---|---|
| committer |   Jens Axboe <axboe@kernel.dk> | 2019-11-13 15:42:50 -0700 |
| commit | c5fcdedcee4e6ae15c0eb5e0fbe25467e57d2963 (patch) | |
| tree | 43c13af43995fb936ab8a19012157445a3815f3a /drivers/md/bcache/btree.c | |
| parent | bcache: add code comments in bch_btree_leaf_dirty() (diff) | |
| download | linux-dev-c5fcdedcee4e6ae15c0eb5e0fbe25467e57d2963.tar.xz linux-dev-c5fcdedcee4e6ae15c0eb5e0fbe25467e57d2963.zip | |
bcache: add idle_max_writeback_rate sysfs interface
For writeback mode, if there is no regular I/O request for a while,
the writeback rate will be set to the maximum value (1TB/s for now).
This is good for most of the storage workload, but there are still
people don't what the maximum writeback rate in I/O idle time.
This patch adds a sysfs interface file idle_max_writeback_rate to
permit people to disable maximum writeback rate. Then the minimum
writeback rate can be advised by writeback_rate_minimum in the
bcache device's sysfs interface.
Reported-by: Christian Balzer <chibi@gol.com>
Signed-off-by: Coly Li <colyli@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/md/bcache/btree.c')
0 files changed, 0 insertions, 0 deletions