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VOP_CREATEVOBJECT, VOP_DESTROYVOBJECT, VOP_GETVOBJECT —

VM ???֥??????Ȥ????ߺ???

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<sys/param.h> <sys/vnode.h> int VOP_CREATEVOBJECT(struct vnode *vp, struct ucred *cred, struct thread *td) int VOP_DESTROYVOBJECT(struct vnode *vp) int VOP_GETVOBJECT(struct vnode *vp, struct vm_object **objpp)

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???????θƤӽФ??ϡ?VM ???֥??????Ȥ???ͭ?? vnode ??Ϣ???????椹?뤿???? ???Ѥ????ޤ???

???????δؿ??ǻ??ꤹ???????ϰʲ????̤??Ǥ???

vp: ???Υե??????? vnode ?Ǥ???
objpp: ?֤????? VM ???֥??????ȡ??ޤ??ϸƤӽФ?¦?????? VM ???֥??????Ȥ? ¸?ߤΥƥ??Ȥ򤹤??????ˤ? NULL ?Ǥ???

Ϳ?????줿 vnode(9) ?Τ????? VM ???֥??????Ȥ?????????ɬ?פ????????ˤϡ? VFS(9) ?? VOP_CREATEVOBJECT() ???¹Ԥ??ޤ??? ?ե????륷???ƥ??Υ????ɤϤ??θƤӽФ??????ؤΥե????륷???ƥ??? ?Ϥ????Ȥ??Ǥ??ޤ??? ???? VOP ?ϲ??٤??ƤӽФ????뤳?Ȥ???ǽ?ǡ??ե????륷???ƥ??Υ????ɤ? ?ɲä????ƤθƤӽФ???̵?뤷??0 ???֤??????ɤǽ?λ?????٤??Ǥ???

vnode(9) ???????Ѥ??줿???ˤϡ? VOP_DESTROYVOBJECT() ???ƤӽФ????ޤ???

VM ???֥??????Ȥ????????뤿???????ƤΥ????ͥ??Υ????ɤǡ? VOP_GETVOBJECT() ?????Ѥ??????٤??Ǥ??? ?֤??줿 VM ???֥??????Ȥϡ??Ťͤ??줿?ޥ????Ȥξ????ˤ? ?ۤʤä??ե????륷???ƥ???°???뤫?⤷???ޤ?????

VFS(9) ?? VM ???֥??????Ȥκ??????????˲???ɸ???????????¹Ԥ??롢 3 ?Ĥδؿ??????äƤ??ޤ??? ???????δؿ??? vop_stdcreatevobject(), vop_stddestroyvobject() ?????? vop_stdgetvobject() ?Ǥ???

????: vnode(9) ?????????˥??å??????Ƥ????٤??ǡ???λ???ޤǥ??å?????³???Ƥ??ʤ????? ?ʤ??ޤ?????

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VOP_CREATEVOBJECT(), VOP_DESTROYVOBJECT() ?????? VOP_GETVOBJECT() ?ؿ??????????ˤ? 0 ???֤??????Ի??ˤ? 0 ?ǤϤʤ??ͤ??֤??ޤ??? ???????ˤ? 0 ???֤??졢?????Ǥʤ????Х??顼???֤????ޤ???

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?ǥե????ȤǤϡ??ե????륷???ƥ??? vop_std*() ?ؿ??? VM ???֥??????Ȥμ??갷?????Ѥͤޤ???

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vnode(9), VOP_GETPAGES(9), VOP_PUTPAGES(9)

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???Υޥ˥奢???ڡ????? Boris Popov ???񤭤ޤ?????