On 2019/2/12 9:28 下午, Sasha Levin wrote:

Hi,

[This is an automated email]

This commit has been processed because it contains a -stable tag. The stable tag indicates that it's relevant for the following trees: all

The bot has tested the following trees: v4.20.7, v4.19.20, v4.14.98, v4.9.155, v4.4.173, v3.18.134.

v4.20.7: Build OK! v4.19.20: Failed to apply! Possible dependencies: 752f66a75aba ("bcache: use REQ_PRIO to indicate bio for metadata")

v4.14.98: Failed to apply! Possible dependencies: 752f66a75aba ("bcache: use REQ_PRIO to indicate bio for metadata") b41c9b0266e8 ("bcache: update bio->bi_opf bypass/writeback REQ_ flag hints")

v4.9.155: Failed to apply! Possible dependencies: 752f66a75aba ("bcache: use REQ_PRIO to indicate bio for metadata") 83b5df67c509 ("bcache: use op_is_sync to check for synchronous requests") b41c9b0266e8 ("bcache: update bio->bi_opf bypass/writeback REQ_ flag hints")

v4.4.173: Failed to apply! Possible dependencies: 09cbfeaf1a5a ("mm, fs: get rid of PAGE_CACHE_* and page_cache_{get,release} macros") 1c2e54e1ed6f ("dm thin: bump thin and thin-pool target versions") 1eff9d322a44 ("block: rename bio bi_rw to bi_opf") 202bae52934d ("dm thin: unroll issue_discard() to create longer discard bio chains") 38f252553300 ("block: add __blkdev_issue_discard") 3dba53a958a7 ("dm thin: use __blkdev_issue_discard for async discard support") 4e49ea4a3d27 ("block/fs/drivers: remove rw argument from submit_bio") 83b5df67c509 ("bcache: use op_is_sync to check for synchronous requests") 9082e87bfbf8 ("block: remove struct bio_batch") a6111d11b8b5 ("btrfs: raid56: Use raid_write_end_io for scrub") b41c9b0266e8 ("bcache: update bio->bi_opf bypass/writeback REQ_ flag hints") bbd848e0fade ("block: reinstate early return of -EOPNOTSUPP from blkdev_issue_discard") c3667cc61904 ("dm thin: consistently return -ENOSPC if pool has run out of data space") c8d93247f1d0 ("bcache: use op_is_write instead of checking for REQ_WRITE") d57d611505d9 ("kernel/fs: fix I/O wait not accounted for RW O_DSYNC")

v3.18.134: Failed to apply! Possible dependencies: 1b94b5567e9c ("Btrfs, raid56: use a variant to record the operation type") 1eff9d322a44 ("block: rename bio bi_rw to bi_opf") 2c8cdd6ee4e7 ("Btrfs, replace: write dirty pages into the replace target device") 326e1dbb5736 ("block: remove management of bi_remaining when restoring original bi_end_io") 4245215d6a8d ("Btrfs, raid56: fix use-after-free problem in the final device replace procedure on raid56") 5a6ac9eacb49 ("Btrfs, raid56: support parity scrub on raid56") 6e9606d2a2dc ("Btrfs: add ref_count and free function for btrfs_bio") 83b5df67c509 ("bcache: use op_is_sync to check for synchronous requests") 8e5cfb55d3f7 ("Btrfs: Make raid_map array be inlined in btrfs_bio structure") af8e2d1df984 ("Btrfs, scrub: repair the common data on RAID5/6 if it is corrupted") b41c9b0266e8 ("bcache: update bio->bi_opf bypass/writeback REQ_ flag hints") b7c44ed9d2fc ("block: manipulate bio->bi_flags through helpers") b89e1b012c7f ("Btrfs, raid56: don't change bbio and raid_map") c4cf5261f8bf ("bio: skip atomic inc/dec of ->bi_remaining for non-chains") c8d93247f1d0 ("bcache: use op_is_write instead of checking for REQ_WRITE") f90523d1aa3c ("Btrfs: remove noused bbio_ret in __btrfs_map_block in condition")

How should we proceed with this patch?

Can I rebase this patch for each stable kernel, and send the patch to stable@vger.kernel.org ?

Thanks.