Hi, I use Debian's default kernel 4.9. I booted 4.14 temporarily, installed system updates with compress=zlib:9, booted 4.9. Now, syslog is cluttered with hundreds of lines like: BTRFS warning (device sda2): unhandled fiemap cache detected: offset=0 phys=653004800 len=4096 flags=0x2000 The warning is apparently harmless, as noted at: https://www.spinics.net/lists/linux-btrfs/msg68326.html The line of code issuing the warning was removed upstream at: https://patchwork.kernel.org/patch/9803291/ Is this the right place to ask for a backport to 4.9? As I understand the release process, Debian would pick it with the next stable kernel update. Thanks
