Boris Popov 3ff1a2f43e Add new flag PDIRUNLOCK to the component.cn_flags which should be set by ... filesystem lookup() routine if it unlocks parent directory. This flag should be carefully tracked by filesystems if they want to work properly with nullfs and other stacked filesystems. VFS takes advantage of this flag to perform symantically correct usage of vrele() instead of vput() if parent directory already unlocked. If filesystem fails to track this flag then previous codepath in VFS left unchanged. Convert UFS code to set PDIRUNLOCK flag if necessary. Other filesystmes will be changed after some period of testing. Reviewed in general by: mckusick, dillon, adrian Obtained from: NetBSD		2000-09-17 07:26:42 +00:00
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ffs	Cannot do MALLOC with M_WAITOK while holding ACQUIRE_LOCK	2000-09-07 23:02:55 +00:00
mfs	Add VOP_*VOBJECT vops, because MFS requires explicit vop specification.	2000-09-12 16:21:16 +00:00
ufs	Add new flag PDIRUNLOCK to the component.cn_flags which should be set by	2000-09-17 07:26:42 +00:00