On Mon, Oct 17, 2022 at 06:59:00AM +0800, Qu Wenruo wrote: > > > On 2022/10/16 20:25, gregkh@xxxxxxxxxxxxxxxxxxx wrote: > > > > The patch below does not apply to the 4.9-stable tree. > > If someone wants it applied there, or to any other stable or longterm > > tree, then please email the backport, including the original git commit > > id to <stable@xxxxxxxxxxxxxxx>. > > Thanks for the mail, I'll backport the patch manually. > > Just want to praise the new dependency hints. > > > > > Possible dependencies: > > > > 81d5d61454c3 ("btrfs: enhance unsupported compat RO flags handling") > > dfe8aec4520b ("btrfs: add a btrfs_block_group_root() helper") > > b6e9f16c5fda ("btrfs: replace open coded while loop with proper construct") > > 42437a6386ff ("btrfs: introduce mount option rescue=ignorebadroots") > > 68319c18cb21 ("btrfs: show rescue=usebackuproot in /proc/mounts") > > ab0b4a3ebf14 ("btrfs: add a helper to print out rescue= options") > > ceafe3cc3992 ("btrfs: sysfs: export supported rescue= mount options") > > 334c16d82cfe ("btrfs: push the NODATASUM check into btrfs_lookup_bio_sums") > > d70bf7484f72 ("btrfs: unify the ro checking for mount options") > > 7573df5547c0 ("btrfs: sysfs: export supported send stream version") > > 3ef3959b29c4 ("btrfs: don't show full path of bind mounts in subvol=") > > 74ef00185eb8 ("btrfs: introduce "rescue=" mount option") > > e3ba67a108ff ("btrfs: factor out reading of bg from find_frist_block_group") > > 89d7da9bc592 ("btrfs: get mapping tree directly from fsinfo in find_first_block_group") > > c730ae0c6bb3 ("btrfs: convert comments to fallthrough annotations") > > aeb935a45581 ("btrfs: don't set SHAREABLE flag for data reloc tree") > > 92a7cc425223 ("btrfs: rename BTRFS_ROOT_REF_COWS to BTRFS_ROOT_SHAREABLE") > > 3be4d8efe3cf ("btrfs: block-group: rename write_one_cache_group()") > > 97f4728af888 ("btrfs: block-group: refactor how we insert a block group item") > > 7357623a7f4b ("btrfs: block-group: refactor how we delete one block group item") > > It looks so awesome!! > > I'm wondering how this is implemented? It would definitely help backporting > not only to stable, but also some vendor backports branches. Sasha's scripts generate these and put them online and you can do: curl --fail --silent https://git.kernel.org/pub/scm/linux/kernel/git/sashal/deps.git/plain/v$STABLE_VERSION/$git_id to query the dependancy tree. thanks, greg k-h