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6b0dd42d76
Eliminate the `kho_finalize()` function and its associated state from the KHO subsystem. The transition to a radix tree for memory tracking makes the explicit "finalize" state and its serialization step obsolete. Remove the `kho_finalize()` and `kho_finalized()` APIs and their stub implementations. Update KHO client code and the debugfs interface to no longer call or depend on the `kho_finalize()` mechanism. Complete the move towards a stateless KHO, simplifying the overall design by removing unnecessary state management. Link: https://lkml.kernel.org/r/20260206021428.3386442-3-jasonmiu@google.com Signed-off-by: Jason Miu <jasonmiu@google.com> Reviewed-by: Pasha Tatashin <pasha.tatashin@soleen.com> Reviewed-by: Mike Rapoport (Microsoft) <rppt@kernel.org> Cc: Alexander Graf <graf@amazon.com> Cc: Baoquan He <bhe@redhat.com> Cc: Changyuan Lyu <changyuanl@google.com> Cc: David Matlack <dmatlack@google.com> Cc: David Rientjes <rientjes@google.com> Cc: Jason Gunthorpe <jgg@nvidia.com> Cc: Pratyush Yadav <pratyush@kernel.org> Cc: Ran Xiaokai <ran.xiaokai@zte.com.cn> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
53 lines
1.6 KiB
C
53 lines
1.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef LINUX_KEXEC_HANDOVER_INTERNAL_H
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#define LINUX_KEXEC_HANDOVER_INTERNAL_H
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#include <linux/kexec_handover.h>
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#include <linux/list.h>
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#include <linux/types.h>
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#ifdef CONFIG_KEXEC_HANDOVER_DEBUGFS
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#include <linux/debugfs.h>
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struct kho_debugfs {
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struct dentry *dir;
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struct dentry *sub_fdt_dir;
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struct list_head fdt_list;
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};
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#else
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struct kho_debugfs {};
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#endif
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extern struct kho_scratch *kho_scratch;
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extern unsigned int kho_scratch_cnt;
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#ifdef CONFIG_KEXEC_HANDOVER_DEBUGFS
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int kho_debugfs_init(void);
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void kho_in_debugfs_init(struct kho_debugfs *dbg, const void *fdt);
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int kho_out_debugfs_init(struct kho_debugfs *dbg);
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int kho_debugfs_fdt_add(struct kho_debugfs *dbg, const char *name,
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const void *fdt, bool root);
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void kho_debugfs_fdt_remove(struct kho_debugfs *dbg, void *fdt);
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#else
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static inline int kho_debugfs_init(void) { return 0; }
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static inline void kho_in_debugfs_init(struct kho_debugfs *dbg,
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const void *fdt) { }
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static inline int kho_out_debugfs_init(struct kho_debugfs *dbg) { return 0; }
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static inline int kho_debugfs_fdt_add(struct kho_debugfs *dbg, const char *name,
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const void *fdt, bool root) { return 0; }
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static inline void kho_debugfs_fdt_remove(struct kho_debugfs *dbg,
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void *fdt) { }
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#endif /* CONFIG_KEXEC_HANDOVER_DEBUGFS */
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#ifdef CONFIG_KEXEC_HANDOVER_DEBUG
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bool kho_scratch_overlap(phys_addr_t phys, size_t size);
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#else
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static inline bool kho_scratch_overlap(phys_addr_t phys, size_t size)
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{
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return false;
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}
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#endif /* CONFIG_KEXEC_HANDOVER_DEBUG */
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#endif /* LINUX_KEXEC_HANDOVER_INTERNAL_H */
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