io_uring: mark having different creds unlikely
Hint the compiler that it's not as likely to have creds different from current attached to a request. The current code generation is far from ideal, hopefully it can help to some compilers to remove duplicated jump tables and so. Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Link: https://lore.kernel.org/r/e7815251ac4bf5a4a23d298c752f029ae19f3837.1632516769.git.asml.silence@gmail.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
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@ -6638,7 +6638,7 @@ static int io_issue_sqe(struct io_kiocb *req, unsigned int issue_flags)
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const struct cred *creds = NULL;
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int ret;
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if ((req->flags & REQ_F_CREDS) && req->creds != current_cred())
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if (unlikely((req->flags & REQ_F_CREDS) && req->creds != current_cred()))
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creds = override_creds(req->creds);
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switch (req->opcode) {
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