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vm_page_protect.9freebsd
Langue: en
Version: 307228 (debian - 07/07/09)
Section: 9 (Appels noyau Linux)
Sommaire
BSD mandoc
NAME
vm_page_protect - lower a page's protectionSYNOPSIS
In sys/param.h In vm/vm.h In vm/vm_page.h Ft void Fn vm_page_protect vm_page_t mem int protDESCRIPTION
The Fn vm_page_protect function lowers a page's protection. The protection is never raised by this function; therefore, if the page is already at VM_PROT_NONE the function does nothing.Its arguments are:
- Fa mem
- The page whose protection is lowered.
- Fa prot
- The protection the page should be reduced to. If VM_PROT_NONE is specified, then the PG_WRITABLE and PG_MAPPED flags are cleared and the pmap_page's protection is set to VM_PROT_NONE If VM_PROT_READ is specified, then the PG_WRITABLE flag is cleared and the pmap_page's protection is set to VM_PROT_READ
Higher protection requests are ignored.
AUTHORS
This manual page was written by An Chad David Aq davidc@acns.ab.ca .Contenus ©2006-2024 Benjamin Poulain
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