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| author | David Sterba | 2017-03-02 18:54:52 +0100 |
|---|---|---|
| committer | David Sterba | 2017-04-18 14:07:25 +0200 |
| commit | cc8385b59e17d489814d54d6a846aba7051fdea5 (patch) | |
| tree | 5fec399f1ead33f3e52de975c185eaf788ad2978 /Documentation/pwm.txt | |
| parent | Btrfs: consistent usage of types in balance_args (diff) | |
| download | kernel-qcow2-linux-cc8385b59e17d489814d54d6a846aba7051fdea5.tar.gz kernel-qcow2-linux-cc8385b59e17d489814d54d6a846aba7051fdea5.tar.xz kernel-qcow2-linux-cc8385b59e17d489814d54d6a846aba7051fdea5.zip | |
btrfs: preallocate radix tree node for readahead
We can preallocate the node so insertion does not have to do that under
the lock. The GFP flags for the per-device radix tree are initialized to
GFP_NOFS & ~__GFP_DIRECT_RECLAIM
but we can use GFP_KERNEL, same as an allocation above anyway, but also
because readahead is optional and not on any critical writeout path.
Reviewed-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'Documentation/pwm.txt')
0 files changed, 0 insertions, 0 deletions