diff --git a/fs/io_uring.c b/fs/io_uring.c index 0853745726dbd419406d81caac697feba5448dfa..dccf946d420370b615113085078036301484da83 100644 --- a/fs/io_uring.c +++ b/fs/io_uring.c @@ -4574,6 +4574,8 @@ static int io_submit_sqes(struct io_ring_ctx *ctx, unsigned int nr, return -EBUSY; } + nr = min(nr, ctx->sq_entries); + if (!percpu_ref_tryget_many(&ctx->refs, nr)) return -EAGAIN; @@ -4748,7 +4750,6 @@ static int io_sq_thread(void *data) ctx->rings->sq_flags &= ~IORING_SQ_NEED_WAKEUP; } - to_submit = min(to_submit, ctx->sq_entries); mutex_lock(&ctx->uring_lock); ret = io_submit_sqes(ctx, to_submit, NULL, -1, &cur_mm, true); mutex_unlock(&ctx->uring_lock); @@ -6088,7 +6089,6 @@ SYSCALL_DEFINE6(io_uring_enter, unsigned int, fd, u32, to_submit, } else if (to_submit) { struct mm_struct *cur_mm; - to_submit = min(to_submit, ctx->sq_entries); mutex_lock(&ctx->uring_lock); /* already have mm, so io_submit_sqes() won't try to grab it */ cur_mm = ctx->sqo_mm;