bcachefs: On device add, prefer unused slots

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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>

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This commit is contained in:

Kent Overstreet 2024-04-30 04:24:58 -04:00

parent ffcbec6076

commit 3a718c0647

1 changed files with 22 additions and 3 deletions

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fs/bcachefs/super.c

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