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| author | Stefan Roesch <shr@fb.com> | 2022-04-25 11:26:36 -0700 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2022-05-16 09:31:02 -0600 |
| commit | 0ba877d0e76f378c01a34c221bf1dc67d158744c (patch) | |
| tree | 84264c832ce76a337623d6792997a9348f026b27 | |
| parent | 7eb8df1b627cce6ccb1ce1b422a713a06943eb6e (diff) | |
| download | liburing-0ba877d0e76f378c01a34c221bf1dc67d158744c.tar.gz liburing-0ba877d0e76f378c01a34c221bf1dc67d158744c.tar.bz2 | |
liburing: return correct ring size for large CQE's
Return the correct ring_size when large CQE's are used.
Signed-off-by: Stefan Roesch <shr@fb.com>
Link: https://lore.kernel.org/r/20220425182639.2446370-4-shr@fb.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
| -rw-r--r-- | src/setup.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/src/setup.c b/src/setup.c index dd6a712..d2adc7f 100644 --- a/src/setup.c +++ b/src/setup.c @@ -257,8 +257,11 @@ static size_t rings_size(struct io_uring_params *p, unsigned entries, { size_t pages, sq_size, cq_size; - cq_size = KRING_SIZE; - cq_size += cq_entries * sizeof(struct io_uring_cqe); + cq_size = sizeof(struct io_uring_cqe); + if (p->flags & IORING_SETUP_CQE32) + cq_size += sizeof(struct io_uring_cqe); + cq_size *= cq_entries; + cq_size += KRING_SIZE; cq_size = (cq_size + 63) & ~63UL; pages = (size_t) 1 << npages(cq_size, page_size); |