bcachefs: Fix lifetime issue in device iterator helpers

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bch2_get_next_dev() and bch2_get_next_online_dev() iterate over devices,
dropping and taking refs as they go; we can't access the previous device
(for ca->dev_idx) after we've dropped our ref to it, unless we take
rcu_read_lock() first.

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

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Kent Overstreet 2024-05-04 12:55:44 -04:00

parent 3a2d025927

commit 18b4abcead

1 changed files with 2 additions and 2 deletions

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fs/bcachefs/sb-members.h

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