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fs/splice: Pull buf->ops->confirm() from splice_from_pipe actors

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This patch pulls calls to buf->ops->confirm() from all actors passed
(also indirectly) to splice_from_pipe_feed().

Is avoiding the call to buf->ops->confirm() while splice()ing to
/dev/null is an intentional optimization? No other user does that
and this will remove this special case.

Against current linux.git 6313e3c217.

Signed-off-by: Michał Mirosław <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
This commit is contained in:
Michał Mirosław 2010-12-17 08:56:44 +01:00 • committed by Jens Axboe
commit a8adbe378b
3 changed files with 14 additions and 37 deletions
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4
drivers/block/loop.c
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@ -397,10 +397,6 @@ lo_splice_actor(struct pipe_inode_info *pipe, struct pipe_buffer *buf,
sector_t IV;
int size, ret;
ret = buf->ops->confirm(pipe, buf);
if (unlikely(ret))
return ret;
IV = ((sector_t) page->index << (PAGE_CACHE_SHIFT - 9)) +
(buf->offset >> 9);
size = sd->len;