Commit Graph

912 Commits

Author SHA1 Message Date
yamt b88fc0e1b7 make some debug statistics evcnt. 2006-01-15 08:31:31 +00:00
yamt 37dd42949a clean up uvm_map evcnt code. no functional changes. 2006-01-08 09:18:27 +00:00
yamt dc9b2af242 uvmpd_scan_inactive: when reactivating a page,
use pmap_is_referenced rather than pmap_clear_reference.
we don't need to clear the bit here as we'll do so when
moving pages back to inactive queue again.  pointed by Chuck Silvers.
2006-01-05 10:47:33 +00:00
yamt 690d424f28 - add simple functions to allocate/free a buffer for i/o.
- make bufpool static.
2006-01-04 10:13:05 +00:00
perry 3d4ed1fbc7 __inline__ -> inline 2005-12-24 23:41:33 +00:00
perry 0f0296d88a Remove leading __ from __(const|inline|signed|volatile) -- it is obsolete. 2005-12-24 20:45:08 +00:00
yamt 2b91131918 uao_get: don't mark pages dirty unless it's a write fault. 2005-12-24 13:22:13 +00:00
yamt 79265831ba uvmpd_scan: when deactivating a page, clear its reference bit.
discussed on tech-kern@.
2005-12-21 12:24:47 +00:00
yamt ca08761347 whitespace in SYSCTL_DESCR. 2005-12-21 12:23:44 +00:00
yamt 4fce5d6f5e make length of inactive queue tunable by sysctl. (vm.inactivepct) 2005-12-21 12:19:04 +00:00
skrll dd1a604b66 Whitespace 2005-12-20 08:25:58 +00:00
christos 95e1ffb156 merge ktrace-lwp. 2005-12-11 12:16:03 +00:00
chs b794108bfa Avoid leaking memory if uiomove fails. from openbsd via PR 32251. 2005-12-06 16:01:13 +00:00
yamt ebf0820ef4 uao_pagein_page: pass PGO_SYNCIO to uao_get.
uao_get doesn't always assume PGO_SYNCIO after yamt-readahead merge.

reported and a dump provided by Masanori Kanaoka.
2005-12-05 01:24:07 +00:00
yamt b09859311d add files i forgot to add when merging yamt-readahead branch. 2005-11-29 23:37:59 +00:00
yamt 221616873d merge yamt-readahead branch. 2005-11-29 22:52:02 +00:00
yamt 52f0a62851 read-ahead statistics. 2005-11-29 15:45:28 +00:00
thorpej ff810990b2 Move UVM files to files.uvm 2005-11-27 22:18:41 +00:00
simonb 155c8bd666 Whitespace nit. 2005-11-09 12:47:39 +00:00
yamt 9df1f09b91 add a function to drop all swap slots in a given range. for tmpfs.
XXX maybe it's better to implement true truncation.
2005-11-08 23:02:22 +00:00
chs 5332333501 in amap_cow_now(), handle the case where we have to sleep and some of the
already-copied pages are paged out.  anons that have already been copied
will have refcount == 1, whereas anons that still need to be copied will
have refcount > 1.  fixes PR 25392, PR 30257, PR 31924.
2005-11-06 15:57:32 +00:00
yamt 94ce3d822f don't include uvm_*_i.h unless needed,
to reduce bogus header dependencies.
2005-10-30 11:56:51 +00:00
chs da3f825c26 remove the assertion in uvm_swapout_threads() about LSONPROC lwps
not running on the same CPU as the swapper.  l_stat is protected by
sched_lock, which isn't held here, so we can race with that lwp
starting to run and see its l_cpu not updated yet, as in PR 31870.
we check l_stat again in uvm_swapout() while holding sched_lock,
so the race itself is harmless.
2005-10-24 00:26:37 +00:00
yamt aec75b1cc6 - change the way to specify a bufq strategy. (by string rather than by number)
- rather than embedding bufq_state in driver softc,
  have a pointer to the former.
- move bufq related functions from kern/subr_disk.c to kern/subr_bufq.c.
- rename method to strategy for consistency.
- move some definitions which don't need to be exposed to the rest of kernel
  from sys/bufq.h to sys/bufq_impl.h.
  (is it better to move it to kern/ or somewhere?)
- fix some obvious breakage in dev/qbus/ts.c.  (not tested)
2005-10-15 17:29:10 +00:00
chs 9307d68e6a stop converting async msync() to sync.
this hasn't been needed for years (if it ever was).
2005-10-10 15:53:28 +00:00
yamt bddc9e47fe add a file which i forgot when reviving VMSWAP option. 2005-09-21 10:21:46 +00:00
yamt b63b4e8324 - make uvm_swap_stats acquire swap_syscall_lock by itsself
so that callers don't need to acquire it beforehand.
- make swap_syscall_lock static.
2005-09-17 14:51:50 +00:00
yamt d597202302 make VMSWAP optional again. 2005-09-17 14:38:38 +00:00
yamt 1f6a8b12c5 uao_put: don't skip loaned or wired pages. 2005-09-14 20:25:21 +00:00
yamt 6fbf5bf6f1 wrap swap related code by #ifdef VMSWAP. always #define VMSWAP for now. 2005-09-13 22:00:05 +00:00
yamt 873763ea0f uao_put: recognize endoff == 0 as "to the end of the object",
as VOP_PUTPAGES (thus vnode pager) does.  for tmpfs.
2005-09-13 19:54:09 +00:00
yamt 74be61b2e6 remove one of duplicated forward decl. of vmspace. pointed by Dheeraj S. 2005-09-01 02:21:12 +00:00
yamt b34f62d5e9 put back uvm_fault.h for now as it's needed for some ports. 2005-09-01 02:16:46 +00:00
yamt be5d1db4a4 don't include uvm_fault.h unnecessarily. 2005-08-27 16:11:32 +00:00
yamt 38ca5312d2 revert "defflag VMSWAP" changes for now.
there seems to be far more people who don't want to edit
their kernel config files than i thought.
2005-07-31 04:04:30 +00:00
yamt 1d0891101c defflag VMSWAP. 2005-07-30 06:33:33 +00:00
yamt b7bfe82866 update file timestamps for nfsd loaned-read and mmap.
PR/25279.  discussed on tech-kern@.
2005-07-23 12:18:41 +00:00
yamt 62cab9eab7 uvm_fault: check a correct object in the case of layered filesystems.
fix PR/30811 from Jukka Salmi.
2005-07-22 14:57:39 +00:00
yamt 8af42d8d3c ensure that vnodes with dirty pages are always on syncer's queue.
- genfs_putpages: wait for i/o completion of PG_RELEASED/PG_PAGEOUT pages by
  setting "wasclean" false when encountering them.
  suggested by Stephan Uphoff in PR/24596 (1).

- genfs_putpages: write protect pages when cleaning out, if
  we're going to take the vnode off the syncer's queue.
  uvm_fault: don't write-map pages unless its vnode is already on
  the syncer's queue.

  fix PR/24596 (3) but in the different way from the suggested fix.
  (to keep our current behaviour, ie. not to require explicit msync.
  discussed on tech-kern@.)

- genfs_putpages: don't mistakenly take a vnode off the queue
  by introducing a generation number in genfs_node.
  genfs_getpages: increment the generation number.
  suggested by Stephan Uphoff in PR/24596 (2).

- add some assertions.
2005-07-17 12:27:47 +00:00
yamt 2a6dc9d02d - introduce PGO_NOBLOCKALLOC and use it for ubc mapping
to prevent unnecessary block allocations in the case that
  page size > block size.

- ufs_balloc_range: use VM_PROT_WRITE+PGO_NOBLOCKALLOC rather than
  VM_PROT_READ.
2005-07-17 09:13:35 +00:00
thorpej 5303f3b378 Clean up the cpp macro used to say "we're compiling this specific C file". 2005-06-28 05:25:42 +00:00
thorpej 9057ed7600 Make a note about why a large function like uvm_loanentry() can be
an inline in this case.
2005-06-28 04:06:52 +00:00
thorpej 8d3ff810fa Add missing PAGE_INLINE to uvm_pagelookup() 2005-06-28 04:00:07 +00:00
thorpej fcd6584a58 Clean up the use of __inline in this file. In particular, don't inline
really big chunks of code.  This saves almost 2.5K on a GENERIC i386
kernel, and has the added benefit of not polluting the I$ so much.
2005-06-28 01:07:56 +00:00
thorpej b651fb886d Sprinkle some static. 2005-06-27 02:29:32 +00:00
thorpej 154a970ff4 Small whitespace tweak. 2005-06-27 02:23:26 +00:00
thorpej e569facced Use ANSI function decls. 2005-06-27 02:19:48 +00:00
jmc 1786cf4f46 Change signature of uvm_kmapent_map defintiion to __INLINE to match prototype 2005-06-13 20:39:14 +00:00
dsl d68ddde829 If we are builging a small kernel [1], don't inline all these functions.
Saves over 2k and lets i386 rescue_tiny build again.
[1] if MALLOC_NOINLINE is defined - not ideal but...
2005-06-10 22:00:52 +00:00
matt e1245a3c46 Rework the coredump code to have no explicit knownledge of how coredump
i/o is done.  Instead, pass an opaque cookie which is then passed to a
new routine, coredump_write, which does the actual i/o.  This allows the
method of doing i/o to change without affecting any future MD code.
Also, make netbsd32_core.c [re]use core_netbsd.c (in a similar manner that
core_elf64.c uses core_elf32.c) and eliminate that code duplication.
cpu_coredump{,32} is now called twice, first with a NULL iocookie to fill
the core structure and a second to actually write md parts of the coredump.
All i/o is nolonger random access and is suitable for shipping over a stream.
2005-06-10 05:10:12 +00:00