diff options
Diffstat (limited to 'share')
| -rw-r--r-- | share/man/man9/namei.9 | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/share/man/man9/namei.9 b/share/man/man9/namei.9 index a8766dd..5f40c2b 100644 --- a/share/man/man9/namei.9 +++ b/share/man/man9/namei.9 @@ -111,8 +111,10 @@ all in one). .It Dv LOCKPARENT Make .Fn namei -also return the parent (directory) vnode (in ndp->dvp), -in locked state. Remember to release it (using +also return the parent (directory) vnode (in nd.ni_dvp), +in locked state, unless the dvp is identical to the vp, in which case the dvp +is not locked per se (but may be locked due to LOCKLEAF). +If you get a lock, remember to release the lock (using .Xr vput 9 or .Xr VOP_UNLOCK 9 @@ -191,6 +193,12 @@ This is available to the caller (who must free it using if SAVESTART or SAVENAME is set. To free only the ni_cnd.cn_pnbuf, there is a special flags NDF_ONLY_PNBUF. To not free the cnd, use the flag ND_NO_FREE_PNBUF. +.Sh BUGS +LOCKPARENT do not always result in parent vp being locked (see details in +description). +This result in complications everywhere LOCKPARENT is used. +In order to solve this for the cases that include both LOCKPARENT and LOCKLEAF, +it will be necessary to go to recursive locking. .Sh SEE ALSO .Xr VFS 9 , .Xr vnode 9 , |
