#
#
-# Above each of the vop descriptors is a specification of the locking
-# protocol used by each vop call. The first column is the name of
-# the variable, the remaining three columns are in, out and error
-# respectively. The "in" column defines the lock state on input,
-# the "out" column defines the state on succesful return, and the
-# "error" column defines the locking state on error exit.
+# Needs to be updated for KPI changes...
#
-# The locking value can take the following values:
-# L: locked.
-# U: unlocked/
-# -: not applicable. vnode does not yet (or no longer) exists.
-# =: the same on input and output, may be either L or U.
-# X: locked if not nil.
-#
-
-# If a vnode operation if likely to generate buffer cache IO
-# for file data, add the word "UBC" on the line containing the
-# name of the vnode operation. The word "UBC" must be the third
-# word on the line, right after "{".
-
-
-#
-#% lookup dvp L ? ?
-#% lookup vpp - L -
-#
-# XXX - the lookup locking protocol defies simple description and depends
-# on the flags and operation fields in the (cnp) structure. Note
-# ebly that *vpp may equal dvp and both may be locked.
-#
-vop_lookup {
- IN struct vnode *dvp;
- INOUT struct vnode **vpp;
- IN struct componentname *cnp;
-};
-
-#
-#% cachedlookup dvp L ? ?
-#% cachedlookup vpp - L -
-#
-# This must be an exact copy of lookup. See kern/vfs_cache.c for details.
-#
-vop_cachedlookup {
- IN struct vnode *dvp;
- INOUT struct vnode **vpp;
- IN struct componentname *cnp;
-};
-
-#
-#% create dvp L L L
-#% create vpp - L -
-#
-vop_create {
- IN WILLRELE struct vnode *dvp;
- OUT struct vnode **vpp;
- IN struct componentname *cnp;
- IN struct vattr *vap;
-};
-
-#
-#% whiteout dvp L L L
-#% whiteout cnp - - -
-#% whiteout flag - - -
-#
-vop_whiteout {
- IN WILLRELE struct vnode *dvp;
- IN struct componentname *cnp;
- IN int flags;
-};
-
-#
-#% mknod dvp L U U
-#% mknod vpp - X -
-#
-vop_mknod {
- IN WILLRELE struct vnode *dvp;
- OUT WILLRELE struct vnode **vpp;
- IN struct componentname *cnp;
- IN struct vattr *vap;
-};
-
-#
-#% mkcomplex dvp L U U
-#% mkcomplex vpp - X -
-#
-vop_mkcomplex {
- IN WILLRELE struct vnode *dvp;
- OUT WILLRELE struct vnode **vpp;
- IN struct componentname *cnp;
- IN struct vattr *vap;
- IN u_long type;
-};
-
-#
-#% open vp L L L
-#
-vop_open {
- IN struct vnode *vp;
- IN int mode;
- IN struct ucred *cred;
- IN struct proc *p;
-};
-
-#
-#% close vp U U U
-#
-vop_close {
- IN struct vnode *vp;
- IN int fflag;
- IN struct ucred *cred;
- IN struct proc *p;
-};
-
-#
-#% access vp L L L
-#
-vop_access {
- IN struct vnode *vp;
- IN int mode;
- IN struct ucred *cred;
- IN struct proc *p;
-};
-
-#
-#% getattr vp = = =
-#
-vop_getattr {
- IN struct vnode *vp;
- IN struct vattr *vap;
- IN struct ucred *cred;
- IN struct proc *p;
-};
-
-#
-#% setattr vp L L L
-#
-vop_setattr {
- IN struct vnode *vp;
- IN struct vattr *vap;
- IN struct ucred *cred;
- IN struct proc *p;
-};
-
-#
-#% getattrlist vp = = =
-#
-vop_getattrlist {
- IN struct vnode *vp;
- IN struct attrlist *alist;
- INOUT struct uio *uio;
- IN struct ucred *cred;
- IN struct proc *p;
-};
-
-#
-#% setattrlist vp L L L
-#
-vop_setattrlist {
- IN struct vnode *vp;
- IN struct attrlist *alist;
- INOUT struct uio *uio;
- IN struct ucred *cred;
- IN struct proc *p;
-};
-
-#
-#% read vp L L L
-#
-vop_read { UBC
- IN struct vnode *vp;
- INOUT struct uio *uio;
- IN int ioflag;
- IN struct ucred *cred;
-};
-
-#
-#% write vp L L L
-#
-vop_write { UBC
- IN struct vnode *vp;
- INOUT struct uio *uio;
- IN int ioflag;
- IN struct ucred *cred;
-};
-
-#
-#% lease vp = = =
-#
-vop_lease {
- IN struct vnode *vp;
- IN struct proc *p;
- IN struct ucred *cred;
- IN int flag;
-};
-
-#
-#% ioctl vp U U U
-#
-vop_ioctl {
- IN struct vnode *vp;
- IN u_long command;
- IN caddr_t data;
- IN int fflag;
- IN struct ucred *cred;
- IN struct proc *p;
-};
-
-#
-#% select vp U U U
-#
-# Needs work? (fflags)
-#
-vop_select {
- IN struct vnode *vp;
- IN int which;
- IN int fflags;
- IN struct ucred *cred;
- IN void * wql;
- IN struct proc *p;
-};
-
-#
-#% exchange fvp L L L
-#% exchange tvp L L L
-#
-vop_exchange {
- IN struct vnode *fvp;
- IN struct vnode *tvp;
- IN struct ucred *cred;
- IN struct proc *p;
-};
-
-#
-#% revoke vp U U U
-#
-vop_revoke {
- IN struct vnode *vp;
- IN int flags;
-};
-
-#
-# XXX - not used
-#
-vop_mmap {
- IN struct vnode *vp;
- IN int fflags;
- IN struct ucred *cred;
- IN struct proc *p;
-};
-
-#
-#% fsync vp L L L
-#
-vop_fsync { UBC
- IN struct vnode *vp;
- IN struct ucred *cred;
- IN int waitfor;
- IN struct proc *p;
-};
-
-#
-# XXX - not used
-# Needs work: Is newoff right? What's it mean?
-#
-vop_seek {
- IN struct vnode *vp;
- IN off_t oldoff;
- IN off_t newoff;
- IN struct ucred *cred;
-};
-
-#
-#% remove dvp L U U
-#% remove vp L U U
-#
-vop_remove {
- IN WILLRELE struct vnode *dvp;
- IN WILLRELE struct vnode *vp;
- IN struct componentname *cnp;
-};
-
-#
-#% link vp U U U
-#% link tdvp L U U
-#
-vop_link {
- IN WILLRELE struct vnode *vp;
- IN struct vnode *tdvp;
- IN struct componentname *cnp;
-};
-
-#
-#% rename fdvp U U U
-#% rename fvp U U U
-#% rename tdvp L U U
-#% rename tvp X U U
-#
-vop_rename {
- IN WILLRELE struct vnode *fdvp;
- IN WILLRELE struct vnode *fvp;
- IN struct componentname *fcnp;
- IN WILLRELE struct vnode *tdvp;
- IN WILLRELE struct vnode *tvp;
- IN struct componentname *tcnp;
-};
-
-#
-#% mkdir dvp L U U
-#% mkdir vpp - L -
-#
-vop_mkdir {
- IN WILLRELE struct vnode *dvp;
- OUT struct vnode **vpp;
- IN struct componentname *cnp;
- IN struct vattr *vap;
-};
-
-#
-#% rmdir dvp L U U
-#% rmdir vp L U U
-#
-vop_rmdir {
- IN WILLRELE struct vnode *dvp;
- IN WILLRELE struct vnode *vp;
- IN struct componentname *cnp;
-};
-
-#
-#% symlink dvp L U U
-#% symlink vpp - U -
-#
-# XXX - note that the return vnode has already been VRELE'ed
-# by the filesystem layer. To use it you must use vget,
-# possibly with a further namei.
-#
-vop_symlink {
- IN WILLRELE struct vnode *dvp;
- OUT WILLRELE struct vnode **vpp;
- IN struct componentname *cnp;
- IN struct vattr *vap;
- IN char *target;
-};
-
-#
-#% readdir vp L L L
-#
-vop_readdir {
- IN struct vnode *vp;
- INOUT struct uio *uio;
- IN struct ucred *cred;
- INOUT int *eofflag;
- OUT int *ncookies;
- INOUT u_long **cookies;
-};
-
-#
-#% readdirattr vp L L L
-#
-vop_readdirattr {
- IN struct vnode *vp;
- IN struct attrlist *alist;
- INOUT struct uio *uio;
- IN u_long maxcount;
- IN u_long options;
- OUT u_long *newstate;
- OUT int *eofflag;
- OUT u_long *actualcount;
- OUT u_long **cookies;
- IN struct ucred *cred;
-};
-
-#
-#% readlink vp L L L
-#
-vop_readlink {
- IN struct vnode *vp;
- INOUT struct uio *uio;
- IN struct ucred *cred;
-};
-
-#
-#% abortop dvp = = =
-#
-vop_abortop {
- IN struct vnode *dvp;
- IN struct componentname *cnp;
-};
-
-#
-#% inactive vp L U U
-#
-vop_inactive {
- IN struct vnode *vp;
- IN struct proc *p;
-};
-
-#
-#% reclaim vp U U U
-#
-vop_reclaim {
- IN struct vnode *vp;
- IN struct proc *p;
-};
-
-#
-#% lock vp U L U
-#
-vop_lock {
- IN struct vnode *vp;
- IN int flags;
- IN struct proc *p;
-};
-
-#
-#% unlock vp L U L
-#
-vop_unlock {
- IN struct vnode *vp;
- IN int flags;
- IN struct proc *p;
-};
-
-#
-#% bmap vp L L L
-#% bmap vpp - U -
-#
-vop_bmap {
- IN struct vnode *vp;
- IN daddr_t bn;
- OUT struct vnode **vpp;
- IN daddr_t *bnp;
- OUT int *runp;
-};
-
-#
-# Needs work: no vp?
-#
-#vop_strategy {
-# IN struct buf *bp;
-#};
-
-#
-#% print vp = = =
-#
-vop_print {
- IN struct vnode *vp;
-};
-
-#
-#% islocked vp = = =
-#
-vop_islocked {
- IN struct vnode *vp;
-};
-
-#
-#% pathconf vp L L L
-#
-vop_pathconf {
- IN struct vnode *vp;
- IN int name;
- OUT register_t *retval;
-};
-
-#
-#% advlock vp U U U
-#
-vop_advlock {
- IN struct vnode *vp;
- IN caddr_t id;
- IN int op;
- IN struct flock *fl;
- IN int flags;
-};
-
-#
-#% blkatoff vp L L L
-#
-vop_blkatoff {
- IN struct vnode *vp;
- IN off_t offset;
- OUT char **res;
- OUT struct buf **bpp;
-};
-
-#
-#% valloc pvp L L L
-#
-vop_valloc {
- IN struct vnode *pvp;
- IN int mode;
- IN struct ucred *cred;
- OUT struct vnode **vpp;
-};
-
-#
-#% reallocblks vp L L L
-#
-vop_reallocblks {
- IN struct vnode *vp;
- IN struct cluster_save *buflist;
-};
-
-#
-#% vfree pvp L L L
-#
-vop_vfree {
- IN struct vnode *pvp;
- IN ino_t ino;
- IN int mode;
-};
-
-#
-#% truncate vp L L L
-#
-vop_truncate { UBC
- IN struct vnode *vp;
- IN off_t length;
- IN int flags;
- IN struct ucred *cred;
- IN struct proc *p;
-};
-
-#
-#% allocate vp L L L
-#
-vop_allocate {
- IN struct vnode *vp;
- IN off_t length;
- IN u_int32_t flags;
- OUT off_t *bytesallocated;
- IN off_t offset;
- IN struct ucred *cred;
- IN struct proc *p;
-};
-
-#
-#% update vp L L L
-#
-vop_update {
- IN struct vnode *vp;
- IN struct timeval *access;
- IN struct timeval *modify;
- IN int waitfor;
-};
-
-#
-#% pgrd vp L L L
-#
-vop_pgrd {
- IN struct vnode *vp;
- INOUT struct uio *uio;
- IN struct ucred *cred;
-};
-
-#
-#% pgwr vp L L L
-#
-vop_pgwr {
- IN struct vnode *vp;
- INOUT struct uio *uio;
- IN struct ucred *cred;
- IN vm_offset_t offset;
-};
-
-#
-# Needs work: no vp?
-#
-#vop_bwrite {
-# IN struct buf *bp;
-#};
-
-#
-#% pagein vp = = =
-#
-vop_pagein {
- IN struct vnode *vp;
- IN upl_t pl;
- IN vm_offset_t pl_offset;
- IN off_t f_offset;
- IN size_t size;
- IN struct ucred *cred;
- IN int flags;
-};
-
-#
-#% pageout vp = = =
-#
-vop_pageout {
- IN struct vnode *vp;
- IN upl_t pl;
- IN vm_offset_t pl_offset;
- IN off_t f_offset;
- IN size_t size;
- IN struct ucred *cred;
- IN int flags;
-};
-
-#
-#% devblocksize vp = = =
-#
-vop_devblocksize {
- IN struct vnode *vp;
- OUT register_t *retval;
-};
-
-#
-#% searchfs vp L L L
-#
-vop_searchfs {
- IN struct vnode *vp;
- IN void *searchparams1;
- IN void *searchparams2;
- IN struct attrlist *searchattrs;
- IN u_long maxmatches;
- IN struct timeval *timelimit;
- OUT struct attrlist *returnattrs;
- OUT u_long *nummatches;
- IN u_long scriptcode;
- IN u_long options;
- INOUT struct uio *uio;
- INOUT struct searchstate *searchstate;
-};
-
-#
-#% copyfile fvp U U U
-#% copyfile tdvp L U U
-#% copyfile tvp X U U
-#
-vop_copyfile {
- IN WILLRELE struct vnode *fvp;
- IN WILLRELE struct vnode *tdvp;
- IN WILLRELE struct vnode *tvp;
- IN struct componentname *tcnp;
- IN int mode;
- IN int flags;
-};
-
-#
-#% blktooff vp = = =
-#
-# Given a logical block number for a vnode
-# return file offset
-#
-vop_blktooff {
- IN struct vnode *vp;
- IN daddr_t lblkno;
- OUT off_t *offset;
-};
-
-#
-#% offtoblk vp = = =
-#
-# Given a file offset for a vnode
-# return logical block number
-#
-vop_offtoblk {
- IN struct vnode *vp;
- IN off_t offset;
- OUT daddr_t *lblkno;
-};
-
-#
-#% cmap vp L L L
-#
-# Given a file offset and size of IO for a vnode
-# return physical block number and bytes physically
-# contiguous at that physical block.
-#
-# An offset into the physical block may be returned [optional]
-# This is needed to support 4K/1K UFS on the devices with 2K
-# sector size.
-vop_cmap {
- IN struct vnode *vp;
- IN off_t foffset;
- IN size_t size;
- OUT daddr_t *bpn;
- OUT size_t *run;
- OUT void *poff;
-};
-
projects / apple / xnu.git / blobdiff