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vm_map_madvise(9) [freebsd man page]

VM_MAP_MADVISE(9)					   BSD Kernel Developer's Manual					 VM_MAP_MADVISE(9)

NAME
vm_map_madvise -- apply advice about use of memory to map entries SYNOPSIS
#include <sys/param.h> #include <vm/vm.h> #include <vm/vm_map.h> int vm_map_madvise(vm_map_t map, vm_offset_t start, vm_offset_t end, int behav); DESCRIPTION
The vm_map_madvise() function applies the flags behav to the entries within map between start and end. Advisories are classified as either those affecting the vm_map_entry structure, or those affecting the underlying objects. The vm_map_madvise() function is used by the madvise(2) system call. RETURN VALUES
The vm_map_madvise() function returns 0 if successful. If the behav argument was not recognised, KERN_INVALID_ARGUMENT is returned. SEE ALSO
madvise(2), vm_map(9) AUTHORS
This manual page was written by Bruce M Simpson <bms@spc.org>. BSD
July 19, 2003 BSD

Check Out this Related Man Page

VM_MAP_SUBMAP(9)					   BSD Kernel Developer's Manual					  VM_MAP_SUBMAP(9)

NAME
vm_map_submap -- create a subordinate map SYNOPSIS
#include <sys/param.h> #include <vm/vm.h> #include <vm/vm_map.h> int vm_map_submap(vm_map_t map, vm_offset_t start, vm_offset_t end, vm_map_t submap); DESCRIPTION
The vm_map_submap() function marks the range bounded by start and end within the map map as being handled by a subordinate map sub_map. It is generally called by the kernel memory allocator. IMPLEMENTATION NOTES
This function is for internal use only. Both maps must exist. The range must have been created with vm_map_find(9) previously. No other operations may have been performed on this range before calling this function. Only the vm_fault() operation may be performed within this range after calling this function. To remove a submapping, one must first remove the range from the parent map, and then destroy the sub_map. This procedure is not recom- mended. RETURN VALUES
The vm_map_submap() function returns KERN_SUCCESS if successful. Otherwise, it returns KERN_INVALID_ARGUMENT if the caller requested copy-on-write flags, or if the range specified for the sub-map was out of range for the parent map, or if a NULL backing object was specified. SEE ALSO
vm_map(9), vm_map_find(9) AUTHORS
This manual page was written by Bruce M Simpson <bms@spc.org>. BSD
July 19, 2003 BSD
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