bcachefs: Improve btree_node_write_if_need()

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btree_node_write_if_need() kicks off a btree node write only if
need_write is set; this makes the locking easier to reason about by
moving the check into the cmpxchg loop in __bch2_btree_node_write().

Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>

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Kent Overstreet 2022-02-26 21:46:41 -05:00 • committed by Kent Overstreet

parent 39dcace838

commit 82732ef510

4 changed files with 29 additions and 24 deletions

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6

fs/bcachefs/btree_cache.c

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22

fs/bcachefs/btree_io.c

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13

fs/bcachefs/btree_io.h

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12

fs/bcachefs/btree_update_interior.c

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