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| author | Dylan Yudaken <dylany@fb.com> | 2022-06-13 03:11:57 -0700 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2022-06-13 05:13:33 -0600 |
| commit | f9437ac0f851cea2374d53594f52fbbefdd977bd (patch) | |
| tree | 6ad0bb8421a4d1e287ad7cf8e57113207bbd251a /kernel/smpboot.h | |
| parent | c6e9fa5c0ab811f4bec36a96337f4b1bb77d142c (diff) | |
| download | linux-f9437ac0f851cea2374d53594f52fbbefdd977bd.tar.bz2 | |
io_uring: limit size of provided buffer ring
The type of head and tail do not allow more than 2^15 entries in a
provided buffer ring, so do not allow this.
At 2^16 while each entry can be indexed, there is no way to
disambiguate full vs empty.
Signed-off-by: Dylan Yudaken <dylany@fb.com>
Link: https://lore.kernel.org/r/20220613101157.3687-4-dylany@fb.com
Reviewed-by: Hao Xu <howeyxu@tencent.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'kernel/smpboot.h')
0 files changed, 0 insertions, 0 deletions