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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 /include/rdma/mr_pool.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 'include/rdma/mr_pool.h')
| -rw-r--r-- | include/rdma/mr_pool.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/include/rdma/mr_pool.h b/include/rdma/mr_pool.h new file mode 100644 index 000000000..e77123bcb --- /dev/null +++ b/include/rdma/mr_pool.h @@ -0,0 +1,17 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright (c) 2016 HGST, a Western Digital Company. + */ +#ifndef _RDMA_MR_POOL_H +#define _RDMA_MR_POOL_H 1 + +#include <rdma/ib_verbs.h> + +struct ib_mr *ib_mr_pool_get(struct ib_qp *qp, struct list_head *list); +void ib_mr_pool_put(struct ib_qp *qp, struct list_head *list, struct ib_mr *mr); + +int ib_mr_pool_init(struct ib_qp *qp, struct list_head *list, int nr, + enum ib_mr_type type, u32 max_num_sg, u32 max_num_meta_sg); +void ib_mr_pool_destroy(struct ib_qp *qp, struct list_head *list); + +#endif /* _RDMA_MR_POOL_H */ |