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authorLinus Torvalds <torvalds@linux-foundation.org>2018-02-10 14:05:11 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2018-02-10 14:05:11 -0800
commit9454473c9dccb7b9d25e5baf915a082bfd490b33 (patch)
tree46f7f1a8886088e2f0184f1cf0e47c8ac12d4849 /drivers/md/bcache/writeback.h
parentcc5cb5af3a3363bc6f0530703895bf9c5fa2f159 (diff)
parent8525e5ff456592effe83640ea1702525e35b0363 (diff)
Merge tag 'for-linus-20180210' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe: "A few fixes to round off the merge window on the block side: - a set of bcache fixes by way of Michael Lyle, from the usual bcache suspects. - add a simple-to-hook-into function for bpf EIO error injection. - fix blk-wbt that mischarectized flushes as reads. Improve the logic so that flushes and writes are accounted as writes, and only reads as reads. From me. - fix requeue crash in BFQ, from Paolo" * tag 'for-linus-20180210' of git://git.kernel.dk/linux-block: block, bfq: add requeue-request hook bcache: fix for data collapse after re-attaching an attached device bcache: return attach error when no cache set exist bcache: set writeback_rate_update_seconds in range [1, 60] seconds bcache: fix for allocator and register thread race bcache: set error_limit correctly bcache: properly set task state in bch_writeback_thread() bcache: fix high CPU occupancy during journal bcache: add journal statistic block: Add should_fail_bio() for bpf error injection blk-wbt: account flush requests correctly
Diffstat (limited to 'drivers/md/bcache/writeback.h')
-rw-r--r--drivers/md/bcache/writeback.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/md/bcache/writeback.h b/drivers/md/bcache/writeback.h
index 66f1c527fa24..587b25599856 100644
--- a/drivers/md/bcache/writeback.h
+++ b/drivers/md/bcache/writeback.h
@@ -8,6 +8,9 @@
#define MAX_WRITEBACKS_IN_PASS 5
#define MAX_WRITESIZE_IN_PASS 5000 /* *512b */
+#define WRITEBACK_RATE_UPDATE_SECS_MAX 60
+#define WRITEBACK_RATE_UPDATE_SECS_DEFAULT 5
+
/*
* 14 (16384ths) is chosen here as something that each backing device
* should be a reasonable fraction of the share, and not to blow up