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| author | Zeng Chi <zengchi@kylinos.cn> | 2026-09-21 18:24:42 +0800 |
|---|---|---|
| committer | Sean Christopherson <seanjc@google.com> | 2026-09-22 08:36:16 -0700 |
| commit | 119e9db233ad0f4cbd4cfb9f9385a7bca378b37d (patch) | |
| tree | 660d50d4139cb750fbde1ae3432452c20726c99d /io_uring/bpf-ops.h | |
| download | linux-stable-119e9db233ad0f4cbd4cfb9f9385a7bca378b37d.tar.gz linux-stable-119e9db233ad0f4cbd4cfb9f9385a7bca378b37d.zip | |
KVM: Don't pre-reserve xarray entries when storing empty/NULL attributesgrafted
Skip the xarray reservation loop when clearing all memory attributes, as
storing NULL only erases the entry and never needs to allocate, so no
reservation (and no cleanup of a failed one) is required in that case.
Suggested-by: Sean Christopherson <seanjc@google.com>
Cc: David Ballesteros <davimaba.v@proton.me>
Signed-off-by: Zeng Chi <zengchi@kylinos.cn>
Link: https://patch.msgid.link/20260921102442.1232375-1-zeng_chi911@163.com
[sean: split to separate patch]
Signed-off-by: Sean Christopherson <seanjc@google.com>
Diffstat (limited to 'io_uring/bpf-ops.h')
| -rw-r--r-- | io_uring/bpf-ops.h | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/io_uring/bpf-ops.h b/io_uring/bpf-ops.h new file mode 100644 index 000000000..0b6d78949 --- /dev/null +++ b/io_uring/bpf-ops.h @@ -0,0 +1,28 @@ +// SPDX-License-Identifier: GPL-2.0 +#ifndef IOU_BPF_OPS_H +#define IOU_BPF_OPS_H + +#include <linux/io_uring_types.h> + +enum { + IOU_REGION_MEM, + IOU_REGION_CQ, + IOU_REGION_SQ, +}; + +struct io_uring_bpf_ops { + int (*loop_step)(struct iou_ctx *, struct iou_loop_params *lp); + + __u32 ring_fd; + void *priv; +}; + +#ifdef CONFIG_IO_URING_BPF_OPS +void io_unregister_bpf_ops(struct io_ring_ctx *ctx); +#else +static inline void io_unregister_bpf_ops(struct io_ring_ctx *ctx) +{ +} +#endif + +#endif /* IOU_BPF_OPS_H */ |