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authorChristoph Hellwig <hch@lst.de>2016-10-20 15:12:13 +0200
committerJens Axboe <axboe@fb.com>2016-10-28 08:45:17 -0600
commite806402130c9c494e22c73ae9ead4e79d2a5811c (patch)
treebac59e1eb3f1b5945409bd0780a4824e9b8383f8 /Documentation/block
parent8d2bbd4c8236e9e38e6b36ac9e2c54fdcfe5b335 (diff)
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.txt2
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: