Lines Matching full:busy

101  *	(B) the page busy lock.
108  *	The busy lock is an embedded reader-writer lock that protects the
111  *	the page structure, the busy lock lacks some of the features available
113  *	busy lock ordering rules are not verified, lock recursion is not
114  *	detected, and an attempt to xbusy a busy page or sbusy an xbusy page
116  *	vm_page_sleep_if_busy() can be used to sleep until the page's busy
121  *	The valid field is protected by the page busy lock (B) and object
124  *	These must be protected with the busy lock to prevent page-in or
128  *	speculative read-only mappings that do not require busy.  I/O
132  *	recycling.  When a valid bit is set while holding a shared busy
137  *	dirty field is a mix of machine dependent (M) and busy (B).  In
138  *	the machine-independent layer, the page busy must be held to
147  *	exclusive busy lock combined with pmap_remove_{write/all}() is the
159  *	wired only when the object is locked, or the page is busy, or by
161  *	page is not busy (or is exclusively busied by the current thread), and
242 	u_int busy_lock;		/* busy owners lock (A) */
268  * attempting to tear down all mappings of a given page.  The page busy lock and
296  * Busy page implementation details.
405  * PGA_NOSYNC must be set and cleared with the page busy lock held.
543 #define	VM_ALLOC_NOBUSY		0x0200	/* (acgp) Do not excl busy the page */
546 #define	VM_ALLOC_IGN_SBUSY	0x1000	/* (gp) Ignore shared busy flag */
548 #define	VM_ALLOC_SBUSY		0x4000	/* (acgp) Shared busy the page */
730 	    ("vm_page_assert_busied: page %p not busy @ %s:%d", \
735 	    ("vm_page_assert_sbusied: page %p not shared busy @ %s:%d", \
747 	    ("vm_page_assert_xbusied: page %p not exclusive busy @ %s:%d", \