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| author | Christoph Hellwig <hch@lst.de> | 2016-10-20 16:12:13 +0300 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2016-10-28 17:45:17 +0300 |
| commit | e806402130c9c494e22c73ae9ead4e79d2a5811c (patch) | |
| tree | bac59e1eb3f1b5945409bd0780a4824e9b8383f8 /Documentation/block | |
| parent | 8d2bbd4c8236e9e38e6b36ac9e2c54fdcfe5b335 (diff) | |
| download | linux-e806402130c9c494e22c73ae9ead4e79d2a5811c.tar.xz | |
block: split out request-only flags into a new namespace
A lot of the REQ_* flags are only used on struct requests, and only of
use to the block layer and a few drivers that dig into struct request
internals.
This patch adds a new req_flags_t rq_flags field to struct request for
them, and thus dramatically shrinks the number of common requests. It
also removes the unfortunate situation where we have to fit the fields
from the same enum into 32 bits for struct bio and 64 bits for
struct request.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Shaun Tancheff <shaun.tancheff@seagate.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'Documentation/block')
| -rw-r--r-- | Documentation/block/biodoc.txt | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/Documentation/block/biodoc.txt b/Documentation/block/biodoc.txt index 918e1e0d0e78..6acea160298c 100644 --- a/Documentation/block/biodoc.txt +++ b/Documentation/block/biodoc.txt @@ -348,7 +348,7 @@ Drivers can now specify a request prepare function (q->prep_rq_fn) that the block layer would invoke to pre-build device commands for a given request, or perform other preparatory processing for the request. This is routine is called by elv_next_request(), i.e. typically just before servicing a request. -(The prepare function would not be called for requests that have REQ_DONTPREP +(The prepare function would not be called for requests that have RQF_DONTPREP enabled) Aside: |