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vm_map_findspace.9freebsd
Langue: en
Version: 309064 (debian - 07/07/09)
Section: 9 (Appels noyau Linux)
BSD mandoc
NAME
vm_map_findspace - find a free region within a mapSYNOPSIS
In sys/param.h In vm/vm.h In vm/vm_map.h Ft int Fo vm_map_findspace Fa vm_map_t map vm_offset_t start vm_size_t length vm_offset_t *addr FcDESCRIPTION
The Fn vm_map_findspace function attempts to find a region with sufficient space in the Fa map for an object of size Fa length at the address Fa addr .IMPLEMENTATION NOTES
It is the caller's responsibility to obtain a lock on the Fa map using vm_map_lock9 before calling this function.This routine may call pmap_growkernel9 to grow the kernel's address space, if and only if the mapping is being made within the kernel address space, and if insufficient space remains in the kernel_map
RETURN VALUES
The Fn vm_map_findspace function returns the value 0 if successful, and Fa *addr will contain the first virtual address in the found region; otherwise, the value 1 is returned.SEE ALSO
pmap_growkernel9, vm_map9, vm_map_entry_resize_free9, vm_map_lock9AUTHORS
This manual page was written by An Bruce M Simpson Aq bms@spc.org .Contenus ©2006-2024 Benjamin Poulain
Design ©2006-2024 Maxime Vantorre