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block: remove bio_clone() and all references.

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bio_clone() is no longer used.
Only bio_clone_bioset() or bio_clone_fast().
This is for the best, as bio_clone() used fs_bio_set,
and filesystems are unlikely to want to use bio_clone().

So remove bio_clone() and all references.
This includes a fix to some incorrect documentation.

Reviewed-by: Christoph Hellwig <[email protected]>
Reviewed-by: Ming Lei <[email protected]>
Signed-off-by: NeilBrown <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
This commit is contained in:
NeilBrown 2017-06-18 14:38:59 +10:00 • committed by Jens Axboe
commit 9b10f6a9c2
5 changed files with 6 additions and 11 deletions
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2
Documentation/block/biodoc.txt
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@ -632,7 +632,7 @@ to i/o submission, if the bio fields are likely to be accessed after the
i/o is issued (since the bio may otherwise get freed in case i/o completion
happens in the meantime).
The bio_clone() routine may be used to duplicate a bio, where the clone
The bio_clone_fast() routine may be used to duplicate a bio, where the clone
shares the bio_vec_list with the original bio (i.e. both point to the
same bio_vec_list). This would typically be used for splitting i/o requests
in lvm or md.