btrfs: avoid searching twice for previous node when merging free space entries

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At try_merge_free_space(), avoid calling twice rb_prev() to find the
previous node, as that requires looping through the red black tree, so
store the result of the rb_prev() call and then use it.

Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

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Filipe Manana 2023-05-04 12:04:20 +01:00 • committed by David Sterba

parent fbb2e654d8

commit 9085f42571

1 changed files with 6 additions and 3 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

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fs/btrfs/free-space-cache.c

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