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| author | Pratyush Yadav (Google) <pratyush@kernel.org> | 2026-08-01 10:48:20 +0200 |
|---|---|---|
| committer | Mike Rapoport (Microsoft) <rppt@kernel.org> | 2026-08-04 09:20:32 +0300 |
| commit | a8ea530d7d75006558944a564effd23b49a51f8a (patch) | |
| tree | c9c21452b1b6a124347998de6e77814d989425f9 /include | |
| parent | 3ab43ce41045c1fa6520af672308b727eb4fedaa (diff) | |
| download | linux-a8ea530d7d75006558944a564effd23b49a51f8a.tar.gz linux-a8ea530d7d75006558944a564effd23b49a51f8a.zip | |
kho: allow destroying KHO radix tree
Add kho_radix_destroy_tree() which allows destroying the radix tree and
freeing all its pages.
This is will be used by the upcoming scratch extension mechanism. It
creates a radix tree to track free blocks and then frees them after
telling memblock about them.
Reviewed-by: Pasha Tatashin <pasha.tatashin@soleen.com>
Signed-off-by: Pratyush Yadav (Google) <pratyush@kernel.org>
Link: https://patch.msgid.link/20260801084833.1897543-12-pratyush@kernel.org
Signed-off-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/kho_radix_tree.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/kho_radix_tree.h b/include/linux/kho_radix_tree.h index 60c1246a9101..b7532aff35d8 100644 --- a/include/linux/kho_radix_tree.h +++ b/include/linux/kho_radix_tree.h @@ -58,6 +58,7 @@ int kho_radix_add_key(struct kho_radix_tree *tree, unsigned long key); void kho_radix_del_key(struct kho_radix_tree *tree, unsigned long key); int kho_radix_walk_tree(struct kho_radix_tree *tree, const struct kho_radix_walk_cb *cb, void *data); +void kho_radix_destroy_tree(struct kho_radix_tree *tree); #else /* #ifdef CONFIG_KEXEC_HANDOVER */ @@ -75,6 +76,8 @@ static inline int kho_radix_walk_tree(struct kho_radix_tree *tree, return -EOPNOTSUPP; } +static inline void kho_radix_destroy_tree(struct kho_radix_tree *tree) { } + #endif /* #ifdef CONFIG_KEXEC_HANDOVER */ #endif /* _LINUX_KHO_RADIX_TREE_H */ |