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io_uring: fix !CONFIG_BLOCK compilation failure

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kernel test robot correctly pinpoints a compilation failure if
CONFIG_BLOCK isn't set:

fs/io_uring.c: In function '__io_complete_rw':
>> fs/io_uring.c:2509:48: error: implicit declaration of function 'io_rw_should_reissue'; did you mean 'io_rw_reissue'? [-Werror=implicit-function-declaration]
    2509 |  if ((res == -EAGAIN || res == -EOPNOTSUPP) && io_rw_should_reissue(req)) {
         |                                                ^~~~~~~~~~~~~~~~~~~~
         |                                                io_rw_reissue
    cc1: some warnings being treated as errors

Ensure that we have a stub declaration of io_rw_should_reissue() for
!CONFIG_BLOCK.

Fixes: 230d50d448 ("io_uring: move reissue into regular IO path")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Jens Axboe 2021-04-02 19:45:34 -06:00
parent 230d50d448
commit e82ad48539
1 changed files with 5 additions and 0 deletions
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5
fs/io_uring.c
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@ -2479,6 +2479,11 @@ static bool io_rw_should_reissue(struct io_kiocb *req)
return false;
return true;
}
#else
static bool io_rw_should_reissue(struct io_kiocb *req)
{
return false;
}
#endif
static bool io_rw_reissue(struct io_kiocb *req)