diff options
| author | Michal Koutný <mkoutny@suse.com> | 2022-07-15 20:45:01 +0300 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2022-07-25 03:39:18 +0300 |
| commit | 48904229928d941ce1db181b991948387ab463cd (patch) | |
| tree | 62cb6262d081bafbb5214d8bd5842adf05172242 /io_uring/io_uring.c | |
| parent | 9b0fc3c054ff2eb13753104884f1045b5bb3a627 (diff) | |
| download | linux-48904229928d941ce1db181b991948387ab463cd.tar.xz | |
io_uring: Don't require reinitable percpu_ref
The commit 8bb649ee1da3 ("io_uring: remove ring quiesce for
io_uring_register") removed the worklow relying on reinit/resurrection
of the percpu_ref, hence, initialization with that requested is a relic.
This is based on code review, this causes no real bug (and theoretically
can't). Technically it's a revert of commit 214828962dea ("io_uring:
initialize percpu refcounters using PERCU_REF_ALLOW_REINIT") but since
the flag omission is now justified, I'm not making this a revert.
Fixes: 8bb649ee1da3 ("io_uring: remove ring quiesce for io_uring_register")
Signed-off-by: Michal Koutný <mkoutny@suse.com>
Acked-by: Roman Gushchin <roman.gushchin@linux.dev>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'io_uring/io_uring.c')
| -rw-r--r-- | io_uring/io_uring.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/io_uring/io_uring.c b/io_uring/io_uring.c index f697ca4e8f55..624535c62565 100644 --- a/io_uring/io_uring.c +++ b/io_uring/io_uring.c @@ -289,7 +289,7 @@ static __cold struct io_ring_ctx *io_ring_ctx_alloc(struct io_uring_params *p) ctx->dummy_ubuf->ubuf = -1UL; if (percpu_ref_init(&ctx->refs, io_ring_ctx_ref_free, - PERCPU_REF_ALLOW_REINIT, GFP_KERNEL)) + 0, GFP_KERNEL)) goto err; ctx->flags = p->flags; |