Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit de1af8f6 authored by Matthew Wilcox's avatar Matthew Wilcox Committed by Linus Torvalds
Browse files

radix tree test suite: add some more functionality 

IDR needs more functionality from the kernel: kmalloc()/kfree(), and
xchg().

Link: http://lkml.kernel.org/r/1480369871-5271-67-git-send-email-mawilcox@linuxonhyperv.com


Signed-off-by: default avatarMatthew Wilcox <willy@linux.intel.com>
Tested-by: default avatarKirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Konstantin Khlebnikov <koct9i@gmail.com>
Cc: Ross Zwisler <ross.zwisler@linux.intel.com>
Cc: Matthew Wilcox <mawilcox@microsoft.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 424251a4

tools/testing/radix-tree/linux.c

+15 −0
Original line number Diff line number Diff line
@@ -54,6 +54,21 @@ void kmem_cache_free(struct kmem_cache *cachep, void *objp) 
	free(objp);

}



void *kmalloc(size_t size, gfp_t gfp)

{

	void *ret = malloc(size);

	uatomic_inc(&nr_allocated);

	return ret;

}



void kfree(void *p)

{

	if (!p)

		return;

	uatomic_dec(&nr_allocated);

	free(p);

}



struct kmem_cache *

kmem_cache_create(const char *name, size_t size, size_t offset,

	unsigned long flags, void (*ctor)(void *))

tools/testing/radix-tree/linux/kernel.h

+3 −0
Original line number Diff line number Diff line
@@ -8,6 +8,7 @@ 
#include <limits.h>



#include "../../include/linux/compiler.h"

#include "../../include/linux/err.h"

#include "../../../include/linux/kconfig.h"



#ifdef BENCHMARK
@@ -58,4 +59,6 @@ static inline int in_interrupt(void) 
#define round_up(x, y) ((((x)-1) | __round_mask(x, y))+1)

#define round_down(x, y) ((x) & ~__round_mask(x, y))



#define xchg(ptr, x)	uatomic_xchg(ptr, x)



#endif /* _KERNEL_H */

tools/testing/radix-tree/linux/slab.h

+3 −0
Original line number Diff line number Diff line
@@ -7,6 +7,9 @@ 
#define SLAB_PANIC 2

#define SLAB_RECLAIM_ACCOUNT    0x00020000UL            /* Objects are reclaimable */



void *kmalloc(size_t size, gfp_t);

void kfree(void *);



struct kmem_cache {

	int size;

	void (*ctor)(void *);