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| author | Christoph Hellwig <hch@lst.de> | 2019-02-28 17:00:18 +0100 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2019-02-28 21:49:22 +0100 |
| commit | 5b88a17cfdeba75e0092bab2c79aaf7d9e7db482 (patch) | |
| tree | 9b4eb6248df2e42fa08c1138fa0c0ca49d48f35b /fs/buffer.c | |
| parent | block: introduce mp_bvec_for_each_page() for iterating over page (diff) | |
| download | linux-5b88a17cfdeba75e0092bab2c79aaf7d9e7db482.tar.xz linux-5b88a17cfdeba75e0092bab2c79aaf7d9e7db482.zip | |
block: optimize bvec iteration in bvec_iter_advance
There is no need to only iterate in chunks of PAGE_SIZE or less in
bvec_iter_advance, given that the callers pass in the chunk length that
they are operating on - either that already is less than PAGE_SIZE
because they do classic page-based iteration, or it is larger because
the caller operates on multi-page bvecs.
This should help shaving off a few cycles of the I/O hot path.
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'fs/buffer.c')
0 files changed, 0 insertions, 0 deletions