bcachefs: Fix rereplicate when we already have a cached pointer

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When we need to add more replicas to an extent, it might be the case
that we already have a replica on every device, but some of them are
cached.

This patch fixes a bug where we'd spin on that extent because the write
path fails to find a device we can allocate from: we allow allocating
from devices that already have cached replicas on them, and change
bch2_data_update_index_update() to drop the cached replica if needed.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

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This commit is contained in:

Kent Overstreet 2023-01-07 22:55:42 -05:00

parent 7c909f654b

commit d7dd3fb84f

1 changed files with 13 additions and 2 deletions

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fs/bcachefs/data_update.c

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