1 VMEM_WALK(9F) Kernel Functions for Drivers VMEM_WALK(9F)
2
3 NAME
4 vmem_walk, vmem_size - walk a (sub-)set of the segments in a vmem arena
5
6 SYNOPSIS
7 #include <sys/vmem.h>
8
9 void
10 vmem_walk(vmem_t *vmp, int typemask,
11 void (*func)(void *, void *, size_t), void *arg);
12
13 size_t
14 vmem_size(vmem_t *vmp, int typemask);
15
16 INTERFACE LEVEL
17 illumos DDI specific
18
19 PARAMETERS
20 vmp The vmem arena to walk
21
22 typemask
23 A bitmask indicating the types of segment to operate on
24
25 VMEM_ALLOC
26 Allocated segments
27
28 VMEM_FREE
29 Free segments
30
31 func The function to apply to each segment matching typemask. func
32 should be of 3 values and return void:
33
34 void *arg
35 The arg passed to vmem_walk()
36
37 void *vaddr
38 The base address of the segment
39
40 size_t size
41 The size of the segment
42
43 arg An arbitrary argument passed to each call to func()
44
45 DESCRIPTION
46 vmem_walk() walks each segment in the arena vmp and applies func to each
47 which matches typemask.
48
49 vmem_size() walks each segment in the arena vmp and totals the size of
50 each matching typemask.
51
52 CONTEXT
53 This function may be called from user or kernel context.
54
55 SEE ALSO
56 vmem(9), vmem_alloc(9F), vmem_create(9F)
57
58 illumos January 18, 2017 illumos
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1 VMEM_WALK(9F) Kernel Functions for Drivers VMEM_WALK(9F)
2
3 NAME
4 vmem_walk, vmem_size - walk a (sub-)set of the segments in a vmem arena
5
6 SYNOPSIS
7 #include <sys/vmem.h>
8
9 void
10 vmem_walk(vmem_t *vmp, int typemask,
11 void (*func)(void *, void *, size_t), void *arg);
12
13 size_t
14 vmem_size(vmem_t *vmp, int typemask);
15
16 INTERFACE LEVEL
17 illumos DDI specific
18
19 PARAMETERS
20 vmp The vmem arena to walk.
21
22 typemask
23 A bitmask indicating the types of segment to operate on.
24
25 VMEM_ALLOC
26 Allocated segments.
27
28 VMEM_FREE
29 Free segments.
30
31 func The function to apply to each segment matching typemask. func
32 should accept 3 arguments and return void:
33
34 void *arg
35 The arg passed to vmem_walk().
36
37 void *vaddr
38 The base address of the segment.
39
40 size_t size
41 The size of the segment.
42
43 arg An arbitrary argument passed to each call to func().
44
45 DESCRIPTION
46 vmem_walk() walks each segment in the arena vmp and applies func to each
47 which matches typemask.
48
49 vmem_size() walks each segment in the arena vmp and totals the size of
50 each matching typemask.
51
52 CONTEXT
53 This function may be called from user or kernel context.
54
55 SEE ALSO
56 vmem(9), vmem_alloc(9F), vmem_create(9F)
57
58 illumos January 18, 2017 illumos
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