| commit | 5911c8fe05c54c9f74a6467650e6493e4808cd01 | [log] [tgz] |
|---|---|---|
| author | David Sterba <dsterba@suse.com> | Wed May 15 15:31:04 2019 +0200 |
| committer | David Sterba <dsterba@suse.com> | Mon Jul 01 13:34:53 2019 +0200 |
| tree | 039d2c9ea71a7d7f74d7a1ba483e8bf989d8737a | |
| parent | 9b4e675a9978800995f83af0ed90e890ca501f31 [diff] |
btrfs: fiemap: preallocate ulists for btrfs_check_shared btrfs_check_shared looks up parents of a given extent and uses ulists for that. These are allocated and freed repeatedly. Preallocation in the caller will avoid the overhead and also allow us to use the GFP_KERNEL as it is happens before the extent locks are taken. Reviewed-by: Nikolay Borisov <nborisov@suse.com> Reviewed-by: Filipe Manana <fdmanana@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>