Attilio Rao 7fbfba7bf8 - Handle buffer lock waiters count directly in the buffer cache instead ... than rely on the lockmgr support [1]: * bump the waiters only if the interlock is held * let brelvp() return the waiters count * rely on brelvp() instead than BUF_LOCKWAITERS() in order to check for the waiters number - Remove a namespace pollution introduced recently with lockmgr.h including lock.h by including lock.h directly in the consumers and making it mandatory for using lockmgr. - Modify flags accepted by lockinit(): * introduce LK_NOPROFILE which disables lock profiling for the specified lockmgr * introduce LK_QUIET which disables ktr tracing for the specified lockmgr [2] * disallow LK_SLEEPFAIL and LK_NOWAIT to be passed there so that it can only be used on a per-instance basis - Remove BUF_LOCKWAITERS() and lockwaiters() as they are no longer used This patch breaks KPI so __FreBSD_version will be bumped and manpages updated by further commits. Additively, 'struct buf' changes results in a disturbed ABI also. [2] Really, currently there is no ktr tracing in the lockmgr, but it will be added soon. [1] Submitted by: kib Tested by: pho, Andrea Barberio <insomniac at slackware dot it>		2008-03-01 19:47:50 +00:00
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nwfs_io.c	Change the VOP_OPEN(), vn_open() vnode operation and d_fdopen() cdev operation	2007-06-01 14:33:11 +00:00
nwfs_ioctl.c	/* -> /*- for copyright notices, minor format tweaks as necessary	2005-01-06 18:10:42 +00:00
nwfs_mount.h	/* -> /*- for copyright notices, minor format tweaks as necessary	2005-01-06 18:10:42 +00:00
nwfs_node.c	Introduce some functions in the vnode locks namespace and in the ffs	2008-02-24 16:38:58 +00:00
nwfs_node.h	/* -> /*- for copyright notices, minor format tweaks as necessary	2005-01-06 18:10:42 +00:00
nwfs_subr.c	- Handle buffer lock waiters count directly in the buffer cache instead	2008-03-01 19:47:50 +00:00
nwfs_subr.h	/* -> /*- for copyright notices, minor format tweaks as necessary	2005-01-06 18:10:42 +00:00
nwfs_vfsops.c	VOP_LOCK1() (and so VOP_LOCK()) and VOP_UNLOCK() are only used in	2008-01-13 14:44:15 +00:00
nwfs_vnops.c	VOP_LOCK1() (and so VOP_LOCK()) and VOP_UNLOCK() are only used in	2008-01-13 14:44:15 +00:00
nwfs.h	Eliminate constant and unused arguments to nwfs_vinvalbuf()	2005-01-14 08:09:42 +00:00