diff options
Diffstat (limited to 'share/man/man9/vnode.9')
| -rw-r--r-- | share/man/man9/vnode.9 | 26 |
1 files changed, 16 insertions, 10 deletions
diff --git a/share/man/man9/vnode.9 b/share/man/man9/vnode.9 index 3191299..e568c75 100644 --- a/share/man/man9/vnode.9 +++ b/share/man/man9/vnode.9 @@ -50,13 +50,15 @@ Each vnode has three reference counts, and .Va v_writecount . The first is the number of clients within the kernel which are -using this vnode. This count is maintained by +using this vnode. +This count is maintained by .Xr vref 9 , .Xr vrele 9 and .Xr vput 9 . The second is the number of clients within the kernel who veto -the recycling of this vnode. This count is +the recycling of this vnode. +This count is maintained by .Xr vhold 9 and @@ -73,7 +75,8 @@ The transition to and from the freelist is handled by and .Xr vbusy 9 . The third is a count of the number of clients which are writing into -the file. It is maintained by the +the file. +It is maintained by the .Xr open 2 and .Xr close 2 @@ -85,7 +88,8 @@ Any call which returns a vnode (e.g.\& etc.) will increase the .Va v_usecount -of the vnode by one. When the caller is finished with the vnode, it +of the vnode by one. +When the caller is finished with the vnode, it should release this reference by calling .Xr vrele 9 (or @@ -113,23 +117,25 @@ functionality. .It Dv VNON No type. .It Dv VREG -A regular file; may be with or without VM object backing. If you want -to make sure this get a backing object, call +A regular file; may be with or without VM object backing. +If you want to make sure this get a backing object, call .Xr vfs_object_create 9 . .It Dv VDIR A directory. .It Dv VBLK -A block device; may be with or without VM object backing. If you want -to make sure this get a backing object, call +A block device; may be with or without VM object backing. +If you want to make sure this get a backing object, call .Xr vfs_object_create 9 . .It Dv VCHR A character device. .It Dv VLNK A symbolic link. .It Dv VSOCK -A socket. Advisory locking won't work on this. +A socket. +Advisory locking won't work on this. .It Dv VFIFO -A FIFO (named pipe). Advisory locking won't work on this. +A FIFO (named pipe). +Advisory locking won't work on this. .It Dv VBAD An old style bad sector map .El |
