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| author | Jens Axboe <axboe@fb.com> | 2014-06-05 13:38:39 -0600 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2014-06-05 13:38:39 -0600 |
| commit | 762380ad9322951cea4ce9d24864265f9c66a916 (patch) | |
| tree | 9ec3fe551583dcb9243d02a9728511e99216dcdc /block/bounce.c | |
| parent | 046f153343e33dcad1be7f6249ea6ff1c6fd9b58 (diff) | |
| download | linux-762380ad9322951cea4ce9d24864265f9c66a916.tar.gz linux-762380ad9322951cea4ce9d24864265f9c66a916.tar.bz2 linux-762380ad9322951cea4ce9d24864265f9c66a916.zip | |
block: add notion of a chunk size for request merging
Some drivers have different limits on what size a request should
optimally be, depending on the offset of the request. Similar to
dividing a device into chunks. Add a setting that allows the driver
to inform the block layer of such a chunk size. The block layer will
then prevent merging across the chunks.
This is needed to optimally support NVMe with a non-zero stripe size.
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'block/bounce.c')
0 files changed, 0 insertions, 0 deletions