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| author | Stefan Roesch <shr@fb.com> | 2022-04-25 11:26:35 -0700 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2022-05-16 09:30:57 -0600 |
| commit | 7eb8df1b627cce6ccb1ce1b422a713a06943eb6e (patch) | |
| tree | 528751319d914896bbdeb179b8536daa61d8a3ea | |
| parent | 5fa7867d8c5b027a421c72dfc68c7c4ac186dbb9 (diff) | |
| download | liburing-7eb8df1b627cce6ccb1ce1b422a713a06943eb6e.tar.gz liburing-7eb8df1b627cce6ccb1ce1b422a713a06943eb6e.tar.bz2 | |
liburing: increase mmap size for large CQE's
This doubles the mmap size for large CQE's.
Signed-off-by: Stefan Roesch <shr@fb.com>
Link: https://lore.kernel.org/r/20220425182639.2446370-3-shr@fb.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
| -rw-r--r-- | src/setup.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/src/setup.c b/src/setup.c index aec8b33..dd6a712 100644 --- a/src/setup.c +++ b/src/setup.c @@ -21,8 +21,12 @@ static int io_uring_mmap(int fd, struct io_uring_params *p, size_t size; int ret; + size = sizeof(struct io_uring_cqe); + if (p->flags & IORING_SETUP_CQE32) + size += sizeof(struct io_uring_cqe); + sq->ring_sz = p->sq_off.array + p->sq_entries * sizeof(unsigned); - cq->ring_sz = p->cq_off.cqes + p->cq_entries * sizeof(struct io_uring_cqe); + cq->ring_sz = p->cq_off.cqes + p->cq_entries * size; if (p->features & IORING_FEAT_SINGLE_MMAP) { if (cq->ring_sz > sq->ring_sz) |