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478922e2b0
This rather complicated function can be better implemented as an iterator. It has only one caller, so move the functionality to the only place that needs it. Update the test suite to follow the same pattern. Link: http://lkml.kernel.org/r/1480369871-5271-56-git-send-email-mawilcox@linuxonhyperv.com Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com> Acked-by: Konstantin Khlebnikov <koct9i@gmail.com> Tested-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Ross Zwisler <ross.zwisler@linux.intel.com> Cc: Matthew Wilcox <mawilcox@microsoft.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
52 lines
2.0 KiB
C
52 lines
2.0 KiB
C
#include <linux/gfp.h>
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#include <linux/types.h>
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#include <linux/radix-tree.h>
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#include <linux/rcupdate.h>
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struct item {
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unsigned long index;
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unsigned int order;
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};
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struct item *item_create(unsigned long index, unsigned int order);
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int __item_insert(struct radix_tree_root *root, struct item *item);
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int item_insert(struct radix_tree_root *root, unsigned long index);
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int item_insert_order(struct radix_tree_root *root, unsigned long index,
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unsigned order);
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int item_delete(struct radix_tree_root *root, unsigned long index);
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struct item *item_lookup(struct radix_tree_root *root, unsigned long index);
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void item_check_present(struct radix_tree_root *root, unsigned long index);
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void item_check_absent(struct radix_tree_root *root, unsigned long index);
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void item_gang_check_present(struct radix_tree_root *root,
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unsigned long start, unsigned long nr,
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int chunk, int hop);
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void item_full_scan(struct radix_tree_root *root, unsigned long start,
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unsigned long nr, int chunk);
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void item_kill_tree(struct radix_tree_root *root);
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unsigned long find_item(struct radix_tree_root *, void *item);
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void tag_check(void);
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void multiorder_checks(void);
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void iteration_test(void);
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void benchmark(void);
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struct item *
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item_tag_set(struct radix_tree_root *root, unsigned long index, int tag);
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struct item *
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item_tag_clear(struct radix_tree_root *root, unsigned long index, int tag);
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int item_tag_get(struct radix_tree_root *root, unsigned long index, int tag);
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void tree_verify_min_height(struct radix_tree_root *root, int maxindex);
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void verify_tag_consistency(struct radix_tree_root *root, unsigned int tag);
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extern int nr_allocated;
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/* Normally private parts of lib/radix-tree.c */
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struct radix_tree_node *entry_to_node(void *ptr);
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void radix_tree_dump(struct radix_tree_root *root);
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int root_tag_get(struct radix_tree_root *root, unsigned int tag);
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unsigned long node_maxindex(struct radix_tree_node *);
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unsigned long shift_maxindex(unsigned int shift);
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int radix_tree_cpu_dead(unsigned int cpu);
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