btrfs: voluntarily relinquish cpu when doing a full fsync

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Doing a full fsync may require processing many leaves of metadata, which
can take some time and result in a task monopolizing a cpu for too long.
So add a cond_resched() after processing a leaf when doing a full fsync,
while not holding any locks on any tree (a subvolume or a log tree).

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

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Filipe Manana 2022-02-17 12:12:05 +00:00 • committed by David Sterba

parent 5b7ce5e287

commit 96acb3753e

1 changed files with 7 additions and 0 deletions

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fs/btrfs/tree-log.c

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