bcachefs; Don't use btree write buffer until journal replay is finished

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The keys being replayed by journal replay have to be synchronized with
updates by other threads that overwrite them. We rely on btree node
locks for synchronizing - but since btree write buffer updates take no
btree locks, that won't work.

Instead, simply disable using the btree write buffer until journal
replay is finished.

This fixes a rare backpointers error in the merge_torture_flakey test.

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

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This commit is contained in:

Kent Overstreet 2023-12-01 22:31:23 -05:00

parent 0117591e69

commit ef6fae4a13

1 changed files with 16 additions and 0 deletions

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fs/bcachefs/btree_update.c

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