On 6/28/19 5:59 AM, Coly Li wrote: > Hi Jens, > > Here are the bcache patches for Linux v5.3. All these patches are > tested for a while and survived from my smoking and pressure testings. > > This run we have Alexandru Ardelean contributes a clean up patch. The > rested patches are from me, there is an important race fix has the > following patches involved in, > - bcache: Revert "bcache: free heap cache_set->flush_btree in > bch_journal_free" > - bcache: Revert "bcache: fix high CPU occupancy during journal" > - bcache: remove retry_flush_write from struct cache_set > - bcache: fix race in btree_flush_write() > - bcache: performance improvement for btree_flush_write() > - bcache: add reclaimed_journal_buckets to struct cache_set > On a Lenovo SR650 server (48 cores, 200G dram, 1T NVMe SSD as cache > device and 12T NVMe SSD as backing device), without this fix, bcache > can only run 40 around minutes before deadlock or panic happens. Now > I don't observe any deadlock or panic for 5+ hours smoking test. > > Please pick them for Linux v5.3, and thank you in advance. Applied, thanks. -- Jens Axboe
