d/freebsd-skq
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Borrow the VM object associated with an underlying cache vnode with the

Browse Source 
Coda vnode derived from it, in the style of nullfs.  This allows files
in the Coda file system to be memory-mapped, such as with execve(2) or
mmap(2).

MFC after:	3 days
Reported by:	Rune <u+openafsdev-sr55 at chalmers dot se>
This commit is contained in:
Robert Watson 2008-01-19 13:27:14 +00:00
parent 4114acea11
commit 6885d70dfe
1 changed files with 5 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
sys/fs/coda/coda_vnops.c
View File

@ -244,6 +244,8 @@ coda_open(struct vop_open_args *ap)
if (error) {
printf("coda_open: VOP_OPEN on container failed %d\n", error);
return (error);
} else {
(*vpp)->v_object = vp->v_object;
}
/* grab (above) does this when it calls newvnode unless it's in the cache*/
@ -747,6 +749,8 @@ coda_inactive(struct vop_inactive_args *ap)
CODADEBUG(CODA_INACTIVE, myprintf(("in inactive, %s, vfsp %p\n",
coda_f2s(&cp->c_fid), vp->v_mount));)
vp->v_object = NULL;
/* If an array has been allocated to hold the symlink, deallocate it */
if ((coda_symlink_cache) && (VALID_SYMLINK(cp))) {
@ -1552,7 +1556,7 @@ coda_reclaim(struct vop_reclaim_args *ap)
cache_purge(vp);
coda_free(VTOC(vp));
vp->v_data = NULL;
vnode_destroy_vobject(vp);
vp->v_object = NULL;
return (0);
}