btrfs: add extra ASSERT()s to make sure the folio size is correct

Browse source

Inspired by the previous crash exposed by generic/795, we want to make
sure every folio from btrfs page cache is properly aligned to block
size.

This is especially important for bs > ps support, as every btrfs
infrastructure, e.g. extent map and extent state, requires strong block
alignment checks.

Furthermore, also output the minimal folio order from the inode mapping,
which is the determining factor during debugging, helping a lot pinning
down the final cause.

Reviewed-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

...

This commit is contained in:

Qu Wenruo 2026-07-31 10:14:50 +09:30 • committed by David Sterba

parent 536e94a4c3

commit 6003c20dbd

1 changed files with 19 additions and 0 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

19

fs/btrfs/extent_io.c

View file