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| author | Jens Axboe <axboe@kernel.dk> | 2020-09-14 19:51:17 +0300 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2020-12-09 22:03:54 +0300 |
| commit | 28cea78af44918b920306df150afbd116bd94301 (patch) | |
| tree | 420d5d7ded4a818f0ed57acf67f0612aee9ef29d /include/uapi/linux | |
| parent | 36f4fa6886a81266d7c82b1c90a65205e73a7c85 (diff) | |
| download | linux-28cea78af44918b920306df150afbd116bd94301.tar.xz | |
io_uring: allow non-fixed files with SQPOLL
The restriction of needing fixed files for SQPOLL is problematic, and
prevents/inhibits several valid uses cases. With the referenced
files_struct that we have now, it's trivially supportable.
Treat ->files like we do the mm for the SQPOLL thread - grab a reference
to it (and assign it), and drop it when we're done.
This feature is exposed as IORING_FEAT_SQPOLL_NONFIXED.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'include/uapi/linux')
| -rw-r--r-- | include/uapi/linux/io_uring.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/uapi/linux/io_uring.h b/include/uapi/linux/io_uring.h index e943bf07c959..2301c37e86cb 100644 --- a/include/uapi/linux/io_uring.h +++ b/include/uapi/linux/io_uring.h @@ -254,6 +254,7 @@ struct io_uring_params { #define IORING_FEAT_CUR_PERSONALITY (1U << 4) #define IORING_FEAT_FAST_POLL (1U << 5) #define IORING_FEAT_POLL_32BITS (1U << 6) +#define IORING_FEAT_SQPOLL_NONFIXED (1U << 7) /* * io_uring_register(2) opcodes and arguments |