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2024-05-08bcachefs: Move BCACHEFS_STATFS_MAGIC value to UAPI magic.hPetr Vorel
Move BCACHEFS_STATFS_MAGIC value to UAPI <linux/magic.h> under BCACHEFS_SUPER_MAGIC definition (use common approach for name) and reuse the definition in bcachefs_format.h BCACHEFS_STATFS_MAGIC. There are other bcachefs magic definitions: BCACHE_MAGIC, BCHFS_MAGIC, which use UUID_INIT() and are used only in libbcachefs. Therefore move only BCACHEFS_STATFS_MAGIC value, which can be used outside of libbcachefs for f_type field in struct statfs in statfs() or fstatfs(). Suggested-by: Su Yue <glass.su@suse.com> Signed-off-by: Petr Vorel <pvorel@suse.cz> Acked-by: Brian Foster <bfoster@redhat.com> Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-05-08bcachefs: Improve sysfs internal/btree_cacheKent Overstreet
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-05-08bcachefs: Allocator prefers not to expand mi.btree_allocated bitmapKent Overstreet
We now have a small bitmap in the member info section of the superblock for "regions that have btree nodes", so that if we ever have to scan for btree nodes in repair we don't have to scan the whole device(s). This tweaks the allocator to prefer allocating from regions that are already marked in this bitmap. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-05-08bcachefs: Better bucket alloc tracepointsKent Overstreet
Tracepoints are garbage, and perf trace even cuts off some of our fields. Much nicer to just trace a string, and then we can build nicely formatted output with printbufs. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-05-08bcachefs: Move nocow unlock to bch2_write_endio()Kent Overstreet
This fixes a lifetime issue; bch2_nocow_write_unlock() uses PTR_BUCKET_POS(), which needs the device - but we drop our ref to the device in bch2_write_endio(). Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-05-08bcachefs: kill bch2_dev_bkey_exists() in journal_ptrs_to_text()Kent Overstreet
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-05-08bcachefs: kill bch2_dev_bkey_exists() in discard_one_bucket_fast()Kent Overstreet
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-05-08bcachefs: kill bch2_dev_bkey_exists() in check_alloc_info()Kent Overstreet
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-05-08bcachefs: bch2_dev_have_ref()Kent Overstreet
bch2_dev_bkey_exists() is going away; bch2_dev_have_ref() documents that we're looking up a device without checking if it's present because we have a reference to it already. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-05-08bcachefs: kill bch2_dev_bkey_exists() in data_update_init()Kent Overstreet
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-05-08bcachefs: kill bch2_dev_bkey_exists() in bkey_pick_read_device()Kent Overstreet
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-05-08bcachefs: pass bch_dev to read_from_stale_dirty_pointer()Kent Overstreet
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-05-08bcachefs: bch2_dev_bucket_exists() uses bch2_dev_rcu()Kent Overstreet
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-05-08bcachefs: kill bch2_dev_bkey_exists() in btree_gc.cKent Overstreet
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-05-08bcachefs: bch2_extent_normalize() -> bch2_dev_rcu()Kent Overstreet
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-05-08bcachefs: bch2_bkey_has_target() -> bch2_dev_rcu()Kent Overstreet
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-05-08bcachefs: extent_ptr_invalid() -> bch2_dev_rcu()Kent Overstreet
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-05-08bcachefs: ptr_stale() -> dev_ptr_stale()Kent Overstreet
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-05-08bcachefs: extent_ptr_durability() -> bch2_dev_rcu()Kent Overstreet
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-05-08bcachefs: bch2_extent_merge() -> bch2_dev_rcu()Kent Overstreet
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-05-08bcachefs: ec_validate_checksums() -> bch2_dev_tryget()Kent Overstreet
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-05-08bcachefs: ob_dev()Kent Overstreet
Wrapper around bch2_dev_have_ref() for open_buckets; we do guarantee that the device an open_bucket points to exists. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-05-08bcachefs: move replica_set from bch_dev to bch_fsKent Overstreet
This is needed for the next patch - the write submit path has to be able to allocate a replica bio even when we weren't able to get a ref on the device. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-05-08bcachefs: Kill bch2_dev_bkey_exists() in backpointer codeKent Overstreet
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-05-08bcachefs: PTR_BUCKET_POS() now takes bch_devKent Overstreet
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-05-08bcachefs: bch2_dev_iterate()Kent Overstreet
New helper for getting refs to devices as we iterate. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-05-08bcachefs: bch2_evacuate_bucket() -> bch2_dev_tryget()Kent Overstreet
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-05-08bcachefs: bch2_bucket_ref_update() now takes bch_devKent Overstreet
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-05-08bcachefs: bch2_trigger_alloc() -> bch2_dev_tryget()Kent Overstreet
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-05-08bcachefs: bch2_check_alloc_key() -> bch2_dev_tryget_noerror()Kent Overstreet
More elimination of bch2_dev_bkey_exists() usage. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-05-08bcachefs: Convert to bch2_dev_tryget_noerror()Kent Overstreet
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-05-08bcachefs: bch2_dev_tryget()Kent Overstreet
Most uses of bch2_dev_bkey_exists() are going away, where we assume that because a key references a device the device most exist - instead, we'll be explicitly checking if the device exists and getting a reference to it. This adds the new helpers. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-05-08bcachefs: bch2_have_enough_devs() checks for nonexistent deviceKent Overstreet
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-05-08bcachefs: journal_replay_entry_early() checks for nonexistent deviceKent Overstreet
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-05-08bcachefs: bch2_dev_btree_bitmap_marked() -> bch2_dev_rcu()Kent Overstreet
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-05-08bcachefs: Pass device to bch2_bucket_do_index()Kent Overstreet
Eliminating bch2_dev_bkey_exists() uses and replacing them with proper checks; this one was unnecessary since the caller already has it. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-05-08bcachefs: Pass device to bch2_alloc_write_key()Kent Overstreet
More elimating bch2_dev_bkey_exists() Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-05-08bcachefs: bch2_dev_safe() -> bch2_dev_rcu()Kent Overstreet
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-05-08bcachefs: Debug asserts for ca->refKent Overstreet
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-05-08bcachefs: New helpers for device refcountsKent Overstreet
This will be used in the next patch for adding some new debug mode asserts. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-05-08bcachefs: bch2_print_allocator_stuck()Kent Overstreet
If we block on the allocator for more than 10 seconds, print out some useful debugging info. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-05-08bcachefs: bch2_bkey_drop_ptrs() declares loop iterKent Overstreet
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-05-08bcachefs: x-macroize journal flags enumsKent Overstreet
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-05-08bcachefs: On device add, prefer unused slotsKent Overstreet
We can't strictly guarantee that no pointers refer to nonexistent devices - we attempt to, but we need to be safe when the filesystem is corrupt. Therefore, change device_add to try to pick a slot that's never been used, or the slot that's been unused the longest. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-05-08bcachefs: Kill opts.buckets_nouseKent Overstreet
Now explicitly allocate and free the buckets_nouse bitmap - this is going to be used for online fsck. To go RW when we haven't check allocations, we'll do a much slimmed down version that just initializes the buckets_nouse bitmaps. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-05-08bcachefs: simplify bch2_trans_start_alloc_update()Kent Overstreet
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-05-08bcachefs: __mark_stripe_bucket() now takes bch_alloc_v4Kent Overstreet
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-05-08bcachefs: __mark_pointer now takes bch_alloc_v4Kent Overstreet
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-05-08bcachefs: kill bch2_dev_usage_update_m()Kent Overstreet
by using bucket_m_to_alloc() more, we can get some nice code cleanup. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-05-08bcachefs: alloc_data_type_set()Kent Overstreet
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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