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fb3f57bb11
This adds a new btree, rebalance_work, to eliminate scanning required for finding extents that need work done on them in the background - i.e. for the background_target and background_compression options. rebalance_work is a bitset btree, where a KEY_TYPE_set corresponds to an extent in the extents or reflink btree at the same pos. A new extent field is added, bch_extent_rebalance, which indicates that this extent has work that needs to be done in the background - and which options to use. This allows per-inode options to be propagated to indirect extents - at least in some circumstances. In this patch, changing IO options on a file will not propagate the new options to indirect extents pointed to by that file. Updating (setting/clearing) the rebalance_work btree is done by the extent trigger, which looks at the bch_extent_rebalance field. Scanning is still requrired after changing IO path options - either just for a given inode, or for the whole filesystem. We indicate that scanning is required by adding a KEY_TYPE_cookie key to the rebalance_work btree: the cookie counter is so that we can detect that scanning is still required when an option has been flipped mid-way through an existing scan. Future possible work: - Propagate options to indirect extents when being changed - Add other IO path options - nr_replicas, ec, to rebalance_work so they can be applied in the background when they change - Add a counter, for bcachefs fs usage output, showing the pending amount of rebalance work: we'll probably want to do this after the disk space accounting rewrite (moving it to a new btree) Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev> |
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| .. | ||
| acl.c | ||
| acl.h | ||
| alloc_background.c | ||
| alloc_background.h | ||
| alloc_foreground.c | ||
| alloc_foreground.h | ||
| alloc_types.h | ||
| backpointers.c | ||
| backpointers.h | ||
| bbpos_types.h | ||
| bbpos.h | ||
| bcachefs_format.h | ||
| bcachefs_ioctl.h | ||
| bcachefs.h | ||
| bkey_buf.h | ||
| bkey_cmp.h | ||
| bkey_methods.c | ||
| bkey_methods.h | ||
| bkey_sort.c | ||
| bkey_sort.h | ||
| bkey.c | ||
| bkey.h | ||
| bset.c | ||
| bset.h | ||
| btree_cache.c | ||
| btree_cache.h | ||
| btree_gc.c | ||
| btree_gc.h | ||
| btree_io.c | ||
| btree_io.h | ||
| btree_iter.c | ||
| btree_iter.h | ||
| btree_journal_iter.c | ||
| btree_journal_iter.h | ||
| btree_key_cache.c | ||
| btree_key_cache.h | ||
| btree_locking.c | ||
| btree_locking.h | ||
| btree_trans_commit.c | ||
| btree_types.h | ||
| btree_update_interior.c | ||
| btree_update_interior.h | ||
| btree_update.c | ||
| btree_update.h | ||
| btree_write_buffer_types.h | ||
| btree_write_buffer.c | ||
| btree_write_buffer.h | ||
| buckets_types.h | ||
| buckets_waiting_for_journal_types.h | ||
| buckets_waiting_for_journal.c | ||
| buckets_waiting_for_journal.h | ||
| buckets.c | ||
| buckets.h | ||
| chardev.c | ||
| chardev.h | ||
| checksum.c | ||
| checksum.h | ||
| clock_types.h | ||
| clock.c | ||
| clock.h | ||
| compress.c | ||
| compress.h | ||
| counters.c | ||
| counters.h | ||
| darray.h | ||
| data_update.c | ||
| data_update.h | ||
| debug.c | ||
| debug.h | ||
| dirent.c | ||
| dirent.h | ||
| disk_groups_types.h | ||
| disk_groups.c | ||
| disk_groups.h | ||
| ec_types.h | ||
| ec.c | ||
| ec.h | ||
| errcode.c | ||
| errcode.h | ||
| error.c | ||
| error.h | ||
| extent_update.c | ||
| extent_update.h | ||
| extents_types.h | ||
| extents.c | ||
| extents.h | ||
| eytzinger.h | ||
| fifo.h | ||
| fs-common.c | ||
| fs-common.h | ||
| fs-io-buffered.c | ||
| fs-io-buffered.h | ||
| fs-io-direct.c | ||
| fs-io-direct.h | ||
| fs-io-pagecache.c | ||
| fs-io-pagecache.h | ||
| fs-io.c | ||
| fs-io.h | ||
| fs-ioctl.c | ||
| fs-ioctl.h | ||
| fs.c | ||
| fs.h | ||
| fsck.c | ||
| fsck.h | ||
| inode.c | ||
| inode.h | ||
| io_misc.c | ||
| io_misc.h | ||
| io_read.c | ||
| io_read.h | ||
| io_write_types.h | ||
| io_write.c | ||
| io_write.h | ||
| journal_io.c | ||
| journal_io.h | ||
| journal_reclaim.c | ||
| journal_reclaim.h | ||
| journal_sb.c | ||
| journal_sb.h | ||
| journal_seq_blacklist.c | ||
| journal_seq_blacklist.h | ||
| journal_types.h | ||
| journal.c | ||
| journal.h | ||
| Kconfig | ||
| keylist_types.h | ||
| keylist.c | ||
| keylist.h | ||
| logged_ops.c | ||
| logged_ops.h | ||
| lru.c | ||
| lru.h | ||
| Makefile | ||
| mean_and_variance_test.c | ||
| mean_and_variance.c | ||
| mean_and_variance.h | ||
| migrate.c | ||
| migrate.h | ||
| move_types.h | ||
| move.c | ||
| move.h | ||
| movinggc.c | ||
| movinggc.h | ||
| nocow_locking_types.h | ||
| nocow_locking.c | ||
| nocow_locking.h | ||
| opts.c | ||
| opts.h | ||
| printbuf.c | ||
| printbuf.h | ||
| quota_types.h | ||
| quota.c | ||
| quota.h | ||
| rebalance_types.h | ||
| rebalance.c | ||
| rebalance.h | ||
| recovery_types.h | ||
| recovery.c | ||
| recovery.h | ||
| reflink.c | ||
| reflink.h | ||
| replicas_types.h | ||
| replicas.c | ||
| replicas.h | ||
| sb-clean.c | ||
| sb-clean.h | ||
| sb-members.c | ||
| sb-members.h | ||
| seqmutex.h | ||
| siphash.c | ||
| siphash.h | ||
| six.c | ||
| six.h | ||
| snapshot.c | ||
| snapshot.h | ||
| str_hash.h | ||
| subvolume_types.h | ||
| subvolume.c | ||
| subvolume.h | ||
| super_types.h | ||
| super-io.c | ||
| super-io.h | ||
| super.c | ||
| super.h | ||
| sysfs.c | ||
| sysfs.h | ||
| tests.c | ||
| tests.h | ||
| trace.c | ||
| trace.h | ||
| two_state_shared_lock.c | ||
| two_state_shared_lock.h | ||
| util.c | ||
| util.h | ||
| varint.c | ||
| varint.h | ||
| vstructs.h | ||
| xattr.c | ||
| xattr.h | ||