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fs: make the pipe_buf_operations ->steal operation optional

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Just return 1 for failure if it is not present.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Christoph Hellwig
2020-05-20 17:58:14 +02:00
committed by Al Viro
parent 6797d97ab9
commit 76887c2567
4 changed files with 2 additions and 16 deletions
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kernel/trace/trace.c
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@@ -7576,7 +7576,6 @@ static bool buffer_pipe_buf_get(struct pipe_inode_info *pipe,
static const struct pipe_buf_operations buffer_pipe_buf_ops = {
.confirm = generic_pipe_buf_confirm,
.release = buffer_pipe_buf_release,
.steal = generic_pipe_buf_nosteal,
.get = buffer_pipe_buf_get,
};