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| author | Coly Li <colyli@suse.de> | 2019-06-28 13:59:54 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2019-06-28 15:39:17 +0200 |
| commit | 249a5f6da57c28a903c75d81505d58ec8c10030d (patch) | |
| tree | 8d1b48b0a00a6075f24cb5661e1f4cde84135f6c /drivers/md/bcache/util.h | |
| parent | bcache: Revert "bcache: free heap cache_set->flush_btree in bch_journal_free" (diff) | |
| download | linux-249a5f6da57c28a903c75d81505d58ec8c10030d.tar.xz linux-249a5f6da57c28a903c75d81505d58ec8c10030d.zip | |
bcache: Revert "bcache: fix high CPU occupancy during journal"
This reverts commit c4dc2497d50d9c6fb16aa0d07b6a14f3b2adb1e0.
This patch enlarges a race between normal btree flush code path and
flush_btree_write(), which causes deadlock when journal space is
exhausted. Reverts this patch makes the race window from 128 btree
nodes to only 1 btree nodes.
Fixes: c4dc2497d50d ("bcache: fix high CPU occupancy during journal")
Signed-off-by: Coly Li <colyli@suse.de>
Cc: stable@vger.kernel.org
Cc: Tang Junhui <tang.junhui.linux@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to '')
| -rw-r--r-- | drivers/md/bcache/util.h | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/drivers/md/bcache/util.h b/drivers/md/bcache/util.h index 1fbced94e4cc..c029f7443190 100644 --- a/drivers/md/bcache/util.h +++ b/drivers/md/bcache/util.h @@ -113,8 +113,6 @@ do { \ #define heap_full(h) ((h)->used == (h)->size) -#define heap_empty(h) ((h)->used == 0) - #define DECLARE_FIFO(type, name) \ struct { \ size_t front, back, size, mask; \ |