bcachefs: btree node scan no longer uses btree cache

Browse source

Previously, btree node scan used the btree node cache to check if btree
nodes were readable, but this is subject to interference from threads
scanning different devices trying to read the same node - and more
critically, nodes that we already attempted and failed to read before
kicking off scan.

Instead, we now allocate a 'struct btree' that does not live in the
btree node cache, and call bch2_btree_node_read_done() directly.

Cc: Nikita Ofitserov <himikof@gmail.com>
Reviewed-by: Nikita Ofitserov <himikof@gmail.com>
Reported-and-tested-by: Edoardo Codeglia <bcachefs@404.blue>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

...

This commit is contained in:

Kent Overstreet 2025-07-03 18:03:10 -04:00

parent c2b2c7d1da

commit a77ffbe34d

1 changed files with 41 additions and 43 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

84

fs/bcachefs/btree_node_scan.c

View file