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| author | Christoph Hellwig <hch@lst.de> | 2020-07-01 10:59:43 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2020-07-01 15:27:24 +0200 |
| commit | c62b37d96b6eb3ec5ae4cbe00db107bf15aebc93 (patch) | |
| tree | b027652585de866a33a22a8a15612f367cdf5f68 /Documentation/block | |
| parent | block: remove the nr_sectors variable in generic_make_request_checks (diff) | |
| download | linux-c62b37d96b6eb3ec5ae4cbe00db107bf15aebc93.tar.xz linux-c62b37d96b6eb3ec5ae4cbe00db107bf15aebc93.zip | |
block: move ->make_request_fn to struct block_device_operations
The make_request_fn is a little weird in that it sits directly in
struct request_queue instead of an operation vector. Replace it with
a block_device_operations method called submit_bio (which describes much
better what it does). Also remove the request_queue argument to it, as
the queue can be derived pretty trivially from the bio.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'Documentation/block')
| -rw-r--r-- | Documentation/block/biodoc.rst | 2 | ||||
| -rw-r--r-- | Documentation/block/writeback_cache_control.rst | 2 |
2 files changed, 2 insertions, 2 deletions
diff --git a/Documentation/block/biodoc.rst b/Documentation/block/biodoc.rst index b964796ec9c7..267384159bf7 100644 --- a/Documentation/block/biodoc.rst +++ b/Documentation/block/biodoc.rst @@ -1036,7 +1036,7 @@ Now the generic block layer performs partition-remapping early and thus provides drivers with a sector number relative to whole device, rather than having to take partition number into account in order to arrive at the true sector number. The routine blk_partition_remap() is invoked by -generic_make_request even before invoking the queue specific make_request_fn, +generic_make_request even before invoking the queue specific ->submit_bio, so the i/o scheduler also gets to operate on whole disk sector numbers. This should typically not require changes to block drivers, it just never gets to invoke its own partition sector offset calculations since all bios diff --git a/Documentation/block/writeback_cache_control.rst b/Documentation/block/writeback_cache_control.rst index 2c752c57c14c..b208488d0aae 100644 --- a/Documentation/block/writeback_cache_control.rst +++ b/Documentation/block/writeback_cache_control.rst @@ -47,7 +47,7 @@ the Forced Unit Access is implemented. The REQ_PREFLUSH and REQ_FUA flags may both be set on a single bio. -Implementation details for make_request_fn based block drivers +Implementation details for bio based block drivers -------------------------------------------------------------- These drivers will always see the REQ_PREFLUSH and REQ_FUA bits as they sit |