kernel/linux.git/fs/bcachefs/disk_groups.h, branch v6.12.80

bcachefs: bch2_disk_path_to_text() no longer takes sb_lock

2023-10-31T16:18:37+00:00

We're going to be using bch2_target_to_text() -> bch2_disk_path_to_text() from bch2_bkey_ptrs_to_text() and bch2_bkey_ptrs_invalid(), which can be called in any context. This patch adds the actual label to bch_disk_group_cpu so that it can be used by bch2_disk_path_to_text, and splits out bch2_disk_path_to_text() into two variants - like the previous patch, one for when we have a running filesystem and another for when we only have a superblock. Signed-off-by: Kent Overstreet

bcachefs: Split out disk_groups_types.h

2023-10-31T16:18:37+00:00

Signed-off-by: Kent Overstreet

bcachefs: Split apart bch2_target_to_text(), bch2_target_to_text_sb()

2023-10-31T16:18:37+00:00

Previously we just had bch2_opt_target_to_text() which could be passed either a filesystem object or just a superblock - depending on if we have a running filesystem or not. Split these into two functions for clarity. Signed-off-by: Kent Overstreet

bcachefs: bch_opt_fn

2023-10-22T21:10:07+00:00

Minor refactoring to get rid of some unneeded token pasting. Signed-off-by: Kent Overstreet

bcachefs: don't spin in rebalance when background target is not usable

2023-10-22T21:10:03+00:00

If a bcachefs filesystem is configured with a background device (disk group), rebalance will relocate data to this device in the background by checking extent keys for whether they currently reside in the specified target. For keys that do not, rebalance performs a read/write cycle to allow the write path to properly relocate data. If the background target is not usable (read-only, for example), however, the write path doesn't actually move data to another device. Instead, rebalance spins indefinitely reading and rewriting the same data over and over to the same device. If the background target is made available again, the rebalance picks this up, relocates the data, and eventually terminates. To avoid this spinning behavior, update the rebalance background target logic to not only check whether the extent is not in the target, but whether the target is actually usable as well. If not, then don't mark the key for rewrite. Signed-off-by: Brian Foster Signed-off-by: Kent Overstreet

bcachefs: create internal disk_groups sysfs file

2023-10-22T21:10:03+00:00

We have bch2_sb_disk_groups_to_text() to dump disk group labels, but no good information on device group membership at runtime. Add bch2_disk_groups_to_text() and an associated 'disk_groups' sysfs file to print group and device relationships. Signed-off-by: Brian Foster Signed-off-by: Kent Overstreet

bcachefs: Fix adding a device with a label

2023-10-22T21:09:39+00:00

Device labels are represented as pointers in the member info section: we need to get and then set the label for it to be kept correctly. Signed-off-by: Kent Overstreet

bcachefs: Convert bch2_sb_to_text to master option list

2023-10-22T21:09:27+00:00

Options no longer have to be manually added to bch2_sb_to_text() - it now uses the master list of options in opts.h. Also, improve some of the formatting by converting it to tabstops. Signed-off-by: Kent Overstreet Signed-off-by: Kent Overstreet

bcachefs: Add .to_text() methods for all superblock sections

2023-10-22T21:09:24+00:00

This patch improves the superblock .to_text() methods and adds methods for all types that were missing them. It also improves printbufs by allowing them to specfiy what units we want to be printing in, and adds new wrapper methods for unifying our kernel and userspace environments. Signed-off-by: Kent Overstreet

bcachefs: Fix disk groups not being updated when set via sysfs

2023-10-22T21:08:43+00:00

Signed-off-by: Kent Overstreet Signed-off-by: Kent Overstreet