bcachefs: rcu protect trans->paths

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Upcoming patches are going to be changing trans->paths to a
reallocatable buffer. We need to guard against use after free when it's
used by other threads; this introduces RCU protection to those paths and
changes them to check for trans->paths == NULL

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

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This commit is contained in:

Kent Overstreet 2023-12-12 20:08:29 -05:00

parent 6474b70610

commit fea153a845

4 changed files with 68 additions and 11 deletions

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22

fs/bcachefs/btree_iter.c

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16

fs/bcachefs/btree_iter.h

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31

fs/bcachefs/btree_locking.c

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10

fs/bcachefs/btree_types.h

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