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Diffstat (limited to 'drivers/md/bcache/bcache.h')
| -rw-r--r-- | drivers/md/bcache/bcache.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/md/bcache/bcache.h b/drivers/md/bcache/bcache.h index 9ed9c955add7..2acda9cea0f9 100644 --- a/drivers/md/bcache/bcache.h +++ b/drivers/md/bcache/bcache.h @@ -395,6 +395,13 @@ struct cached_dev { atomic_t io_errors; unsigned int error_limit; unsigned int offline_seconds; + + /* + * Retry to update writeback_rate if contention happens for + * down_read(dc->writeback_lock) in update_writeback_rate() + */ +#define BCH_WBRATE_UPDATE_MAX_SKIPS 15 + unsigned int rate_update_retry; }; enum alloc_reserve { |