Konstantin Belousov eab626f110 Move the head of byte-level advisory lock list from the ... filesystem-specific vnode data to the struct vnode. Provide the default implementation for the vop_advlock and vop_advlockasync. Purge the locks on the vnode reclaim by using the lf_purgelocks(). The default implementation is augmented for the nfs and smbfs. In the nfs_advlock, push the Giant inside the nfs_dolock. Before the change, the vop_advlock and vop_advlockasync have taken the unlocked vnode and dereferenced the fs-private inode data, racing with with the vnode reclamation due to forced unmount. Now, the vop_getattr under the shared vnode lock is used to obtain the inode size, and later, in the lf_advlockasync, after locking the vnode interlock, the VI_DOOMED flag is checked to prevent an operation on the doomed vnode. The implementation of the lf_purgelocks() is submitted by dfr. Reported by: kris Tested by: kris, pho Discussed with: jeff, dfr MFC after: 2 weeks		2008-04-16 11:33:32 +00:00
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nfs4_dev.c
nfs4_dev.h
nfs4_idmap.c	- Handle buffer lock waiters count directly in the buffer cache instead	2008-03-01 19:47:50 +00:00
nfs4_idmap.h
nfs4_socket.c
nfs4_subs.c	NFSv4 client:	2006-11-28 19:33:28 +00:00
nfs4_vfs_subs.c	Unstaticize nfs_iosize() in nfsclient and use it in nfs4client instead	2007-01-25 13:07:25 +00:00
nfs4_vfs.h
nfs4_vfsops.c	- Complete part of the unfinished bufobj work by consistently using	2008-03-22 09:15:16 +00:00
nfs4_vn_subs.c	NFSv4 client:	2006-11-28 19:33:28 +00:00
nfs4_vn.h
nfs4_vnops.c	Move the head of byte-level advisory lock list from the	2008-04-16 11:33:32 +00:00
nfs4.h
nfs4m_subs.h