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https://github.com/torvalds/linux.git
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920e69bc3d
This adds a new method of doing btree updates - a straight write buffer, implemented as a flat fixed size array. This is only useful when we don't need to read from the btree in order to do the update, and when reading is infrequent - perfect for the LRU btree. This will make LRU btree updates fast enough that we'll be able to use it for persistently indexing buckets by fragmentation, which will be a massive boost to copygc performance. Changes: - A new btree_insert_type enum, for btree_insert_entries. Specifies btree, btree key cache, or btree write buffer. - bch2_trans_update_buffered(): updates via the btree write buffer don't need a btree path, so we need a new update path. - Transaction commit path changes: The update to the btree write buffer both mutates global, and can fail if there isn't currently room. Therefore we do all write buffer updates in the transaction all at once, and also if it fails we have to revert filesystem usage counter changes. If there isn't room we flush the write buffer in the transaction commit error path and retry. - A new persistent option, for specifying the number of entries in the write buffer. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
76 lines
1.2 KiB
Makefile
76 lines
1.2 KiB
Makefile
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obj-$(CONFIG_BCACHEFS_FS) += bcachefs.o
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bcachefs-y := \
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alloc_background.o \
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alloc_foreground.o \
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bkey.o \
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bkey_methods.o \
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bkey_sort.o \
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bset.o \
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btree_cache.o \
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btree_gc.o \
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btree_io.o \
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btree_iter.o \
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btree_key_cache.o \
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btree_locking.o \
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btree_update_interior.o \
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btree_update_leaf.o \
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btree_write_buffer.o \
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buckets.o \
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buckets_waiting_for_journal.o \
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chardev.o \
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checksum.o \
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clock.o \
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compress.o \
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counters.o \
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debug.o \
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dirent.o \
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disk_groups.o \
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data_update.o \
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ec.o \
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errcode.o \
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error.o \
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extents.o \
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extent_update.o \
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fs.o \
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fs-common.o \
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fs-ioctl.o \
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fs-io.o \
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fsck.o \
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inode.o \
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io.o \
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journal.o \
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journal_io.o \
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journal_reclaim.o \
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journal_sb.o \
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journal_seq_blacklist.o \
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keylist.o \
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lru.o \
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mean_and_variance.o \
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migrate.o \
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move.o \
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movinggc.o \
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opts.o \
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printbuf.o \
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quota.o \
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rebalance.o \
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recovery.o \
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reflink.o \
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replicas.o \
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siphash.o \
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six.o \
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subvolume.o \
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super.o \
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super-io.o \
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sysfs.o \
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tests.o \
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trace.o \
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two_state_shared_lock.o \
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util.o \
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varint.o \
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xattr.o
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bcachefs-$(CONFIG_BCACHEFS_POSIX_ACL) += acl.o
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obj-$(CONFIG_MEAN_AND_VARIANCE_UNIT_TEST) += mean_and_variance_test.o
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