Robert Watson 96b1e9b015 Don't acquire an additional vnode reference to a vnode when it is opened ...

and then release it when it is closed: we rely on the caller to keep the
vnode around with a valid reference.  This avoids vrele() destroying the
vnode vop_close() is being called from during a call to vop_close(), and
a crash due to lockmgr recursing the vnode lock when a Coda unmount
occurs.

MFC after:	3 days

2008-01-19 15:39:10 +00:00

..

cd9660

VOP_LOCK1() (and so VOP_LOCK()) and VOP_UNLOCK() are only used in

2008-01-13 14:44:15 +00:00

coda

Don't acquire an additional vnode reference to a vnode when it is opened

2008-01-19 15:39:10 +00:00

deadfs

Below is slightly edited description of the LOR by Tor Egge:

2007-01-22 11:25:22 +00:00

devfs

VOP_LOCK1() (and so VOP_LOCK()) and VOP_UNLOCK() are only used in

2008-01-13 14:44:15 +00:00

fdescfs

VOP_LOCK1() (and so VOP_LOCK()) and VOP_UNLOCK() are only used in

2008-01-13 14:44:15 +00:00

fifofs

VOP_LOCK1() (and so VOP_LOCK()) and VOP_UNLOCK() are only used in

2008-01-13 14:44:15 +00:00

hpfs

VOP_LOCK1() (and so VOP_LOCK()) and VOP_UNLOCK() are only used in

2008-01-13 14:44:15 +00:00

msdosfs

VOP_LOCK1() (and so VOP_LOCK()) and VOP_UNLOCK() are only used in

2008-01-13 14:44:15 +00:00

ntfs

VOP_LOCK1() (and so VOP_LOCK()) and VOP_UNLOCK() are only used in

2008-01-13 14:44:15 +00:00

nullfs

VOP_LOCK1() (and so VOP_LOCK()) and VOP_UNLOCK() are only used in

2008-01-13 14:44:15 +00:00

nwfs

VOP_LOCK1() (and so VOP_LOCK()) and VOP_UNLOCK() are only used in

2008-01-13 14:44:15 +00:00

portalfs

vn_lock() is currently only used with the 'curthread' passed as argument.

2008-01-10 01:10:58 +00:00

procfs

VOP_LOCK1() (and so VOP_LOCK()) and VOP_UNLOCK() are only used in

2008-01-13 14:44:15 +00:00

pseudofs

VOP_LOCK1() (and so VOP_LOCK()) and VOP_UNLOCK() are only used in

2008-01-13 14:44:15 +00:00

smbfs

VOP_LOCK1() (and so VOP_LOCK()) and VOP_UNLOCK() are only used in

2008-01-13 14:44:15 +00:00

tmpfs

VOP_LOCK1() (and so VOP_LOCK()) and VOP_UNLOCK() are only used in

2008-01-13 14:44:15 +00:00

udf

udf_vget() shall vgone() the vnode when the file_entry cannot be allocated

2008-01-18 12:09:54 +00:00

unionfs

VOP_LOCK1() (and so VOP_LOCK()) and VOP_UNLOCK() are only used in

2008-01-13 14:44:15 +00:00