Alan Cox 85f5b24573 In the common case, pmap_enter_quick() completes without sleeping. ... In such cases, the busying of the page and the unlocking of the containing object by vm_map_pmap_enter() and vm_fault_prefault() is unnecessary overhead. To eliminate this overhead, this change modifies pmap_enter_quick() so that it expects the object to be locked on entry and it assumes the responsibility for busying the page and unlocking the object if it must sleep. Note: alpha, amd64, i386 and ia64 are the only implementations optimized by this change; arm, powerpc, and sparc64 still conservatively busy the page and unlock the object within every pmap_enter_quick() call. Additionally, this change is the first case where we synchronize access to the page's PG_BUSY flag and busy field using the containing object's lock rather than the global page queues lock. (Modifications to the page's PG_BUSY flag and busy field have asserted both locks for several weeks, enabling an incremental transition.)		2004-12-15 19:55:05 +00:00
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alpha	In the common case, pmap_enter_quick() completes without sleeping.	2004-12-15 19:55:05 +00:00
compile	Don't need the .keep_me files. Obrien and I committed past each other.	2001-07-01 23:35:44 +00:00
conf	Get in sync with reality: TurboLaser was never really well supported to	2004-11-09 22:24:47 +00:00
include	Change gdb_cpu_setreg() to not take the value to which to set the	2004-12-01 06:40:35 +00:00
isa	Add new a function isa_dma_init() which returns an errno when it fails	2004-09-15 12:09:50 +00:00
linux	Don't include sys/user.h merely for its side-effect of recursively	2004-11-27 06:51:39 +00:00
mcbus	Catch up with __RMAN_RESOURCE_VISIBLE enough to get GENERIC to build	2004-07-01 15:07:27 +00:00
osf1	Don't include sys/user.h merely for its side-effect of recursively	2004-11-27 06:51:39 +00:00
pci	In alpha_pci_alloc_resource(), when allocating a memory resource,	2004-08-29 19:07:14 +00:00
tlsb	Add new function ttyinitmode() which sets our systemwide default	2004-10-18 21:51:27 +00:00
Makefile	Add a dopey makefile to do the tags dance, which is probably not perfect	2000-12-31 23:26:34 +00:00