btrfs: Always use a cached extent_state in btrfs_lock_and_flush_ordered_range

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In case no cached_state argument is passed to
btrfs_lock_and_flush_ordered_range use one locally in the function. This
optimises the case when an ordered extent is found since the unlock
function will be able to unlock that state directly without searching
for it again.

Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

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Nikolay Borisov 2019-05-07 10:19:24 +03:00 • committed by David Sterba

parent 23d31bd476

commit bd80d94efb

1 changed files with 15 additions and 3 deletions

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fs/btrfs/ordered-data.c

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