| History log of /src/sys/uvm/uvm_object.c |
| Revision | | Date | Author | Comments |
| 1.25 |
| 15-Aug-2020 |
chs | use uint64_t rather than int for storing the index of a page within an object.
|
| 1.24 |
| 14-Aug-2020 |
chs | centralize calls from UVM to radixtree into a few functions.
in those functions, assert that the object lock is held in
the correct mode.
|
| 1.23 |
| 25-May-2020 |
ad | - Alter the convention for uvm_page_array slightly, so the basic search
parameters can't change part way through a search: move the "uobj" and
"flags" arguments over to uvm_page_array_init() and store those with the
array.
- With that, detect when it's not possible to find any more pages in the
tree with the given search parameters, and avoid repeated tree lookups if
the caller loops over uvm_page_array_fill_and_peek().
|
| 1.22 |
| 19-May-2020 |
ad | PR kern/32166: pgo_get protocol is ambiguous
Also problems with tmpfs+nfs noted by hannken@.
Don't pass PGO_ALLPAGES to pgo_get, and ignore PGO_DONTCARE in the
!PGO_LOCKED case. In uao_get() have uvm_pagealloc() take care of page
zeroing and release busy pages on error.
|
| 1.21 |
| 23-Feb-2020 |
ad | UVM locking changes, proposed on tech-kern:
- Change the lock on uvm_object, vm_amap and vm_anon to be a RW lock.
- Break v_interlock and vmobjlock apart. v_interlock remains a mutex.
- Do partial PV list locking in the x86 pmap. Others to follow later.
|
| 1.20 |
| 15-Jan-2020 |
ad | Merge from yamt-pagecache (after much testing):
- Reduce unnecessary page scan in putpages esp. when an object has a ton of
pages cached but only a few of them are dirty.
- Reduce the number of pmap operations by tracking page dirtiness more
precisely in uvm layer.
|
| 1.19 |
| 31-Dec-2019 |
ad | branches: 1.19.2;
- Add and use wrapper functions that take and acquire page interlocks, and pairs
of page interlocks. Require that the page interlock be held over calls to
uvm_pageactivate(), uvm_pagewire() and similar.
- Solve the concurrency problem with page replacement state. Rather than
updating the global state synchronously, set an intended state on
individual pages (active, inactive, enqueued, dequeued) while holding the
page interlock. After the interlock is released put the pages on a 128
entry per-CPU queue for their state changes to be made real in batch.
This results in in a ~400 fold decrease in contention on my test system.
Proposed on tech-kern but modified to use the page interlock rather than
atomics to synchronise as it's much easier to maintain that way, and
cheaper.
|
| 1.18 |
| 15-Dec-2019 |
ad | Merge from yamt-pagecache:
- do gang lookup of pages using radixtree.
- remove now unused uvm_object::uo_memq and vm_page::listq.queue.
|
| 1.17 |
| 14-Dec-2019 |
ad | Merge from yamt-pagecache: use radixtree for page lookup.
rbtree page lookup was introduced during the NetBSD 5.0 development cycle to
bypass lock contention problems with the (then) global page hash, and was a
temporary solution to allow us to make progress. radixtree is the intended
replacement.
Ok yamt@.
|
| 1.16 |
| 13-Dec-2019 |
ad | Break the global uvm_pageqlock into a per-page identity lock and a private
lock for use of the pagedaemon policy code. Discussed on tech-kern.
PR kern/54209: NetBSD 8 large memory performance extremely low
PR kern/54210: NetBSD-8 processes presumably not exiting
PR kern/54727: writing a large file causes unreasonable system behaviour
|
| 1.15 |
| 26-Oct-2015 |
mrg | branches: 1.15.18;
disable the previous for now; it fails for me on a different system.
|
| 1.14 |
| 26-Oct-2015 |
mrg | in uvm_obj_init(), KASSERT(ops), to ensure we have an actual pager ops
set for this object. suggested by chuq.
|
| 1.13 |
| 24-Aug-2015 |
pooka | to garnish, dust with _KERNEL_OPT
|
| 1.12 |
| 11-Mar-2014 |
pooka | branches: 1.12.6;
deduplicate uvm_object_printit() implementation
|
| 1.11 |
| 27-Aug-2011 |
christos | branches: 1.11.2; 1.11.12; 1.11.16;
Add an optional pglist argument to uvm_obj_wirepages, to be
filled with the list of pages that were wired.
|
| 1.10 |
| 18-Jun-2011 |
rmind | - Move pre-check from uvm_obj_destroy() to ubc_purge(), keep it abstracted.
- Add comments noting the race between ubc_alloc() and ubc_purge().
|
| 1.9 |
| 12-Jun-2011 |
mrg | include uvm_object.c in the rump kernel for the new uvm_obj* functions.
don't build the uvm_object.c uvm_object_printit() for _RUMPKERNEL. (XXX)
add empty panic() stubs for uvm_loanbreak() and ubc_purge().
fixes some more 5.99.53 rump build issues.
|
| 1.8 |
| 12-Jun-2011 |
rmind | Welcome to 5.99.53! Merge rmind-uvmplock branch:
- Reorganize locking in UVM and provide extra serialisation for pmap(9).
New lock order: [vmpage-owner-lock] -> pmap-lock.
- Simplify locking in some pmap(9) modules by removing P->V locking.
- Use lock object on vmobjlock (and thus vnode_t::v_interlock) to share
the locks amongst UVM objects where necessary (tmpfs, layerfs, unionfs).
- Rewrite and optimise x86 TLB shootdown code, make it simpler and cleaner.
Add TLBSTATS option for x86 to collect statistics about TLB shootdowns.
- Unify /dev/mem et al in MI code and provide required locking (removes
kernel-lock on some ports). Also, avoid cache-aliasing issues.
Thanks to Andrew Doran and Joerg Sonnenberger, as their initial patches
formed the core changes of this branch.
|
| 1.7 |
| 18-Aug-2009 |
thorpej | branches: 1.7.2; 1.7.4; 1.7.10;
Move uvm_object-related DDB hooks into uvm_object.c. Put all of the
uvm_map-related DDB stuff in one spot in the file.
|
| 1.6 |
| 28-Apr-2008 |
martin | Remove clause 3 and 4 from TNF licenses
|
| 1.5 |
| 04-Jan-2008 |
ad | branches: 1.5.6; 1.5.8; 1.5.10;
Start detangling lock.h from intr.h. This is likely to cause short term
breakage, but the mess of dependencies has been regularly breaking the
build recently anyhow.
|
| 1.4 |
| 02-Jan-2008 |
ad | Merge vmlocking2 to head.
|
| 1.3 |
| 17-Feb-2007 |
rmind | branches: 1.3.4; 1.3.18; 1.3.24; 1.3.26; 1.3.30;
Mention rmind@ as an author in the license. No functional change.
|
| 1.2 |
| 12-Oct-2006 |
yamt | branches: 1.2.2; 1.2.4; 1.2.8; 1.2.10;
whitespace.
|
| 1.1 |
| 12-Oct-2006 |
yamt | uobj_wirepages and uobj_unwirepages from Mindaugas. PR/34771.
(commented out in files.uvm for now because there is no user in tree.)
http://mail-index.netbsd.org/tech-kern/2006/09/24/0000.html
http://mail-index.netbsd.org/tech-kern/2006/10/10/0000.html
|
| 1.2.10.1 |
| 27-Feb-2007 |
yamt | - sync with head.
- move sched_changepri back to kern_synch.c as it doesn't know PPQ anymore.
|
| 1.2.8.4 |
| 21-Jan-2008 |
yamt | sync with head
|
| 1.2.8.3 |
| 26-Feb-2007 |
yamt | sync with head.
|
| 1.2.8.2 |
| 30-Dec-2006 |
yamt | sync with head.
|
| 1.2.8.1 |
| 12-Oct-2006 |
yamt | file uvm_object.c was added on branch yamt-lazymbuf on 2006-12-30 20:51:05 +0000
|
| 1.2.4.2 |
| 18-Nov-2006 |
ad | Sync with head.
|
| 1.2.4.1 |
| 12-Oct-2006 |
ad | file uvm_object.c was added on branch newlock2 on 2006-11-18 21:39:50 +0000
|
| 1.2.2.2 |
| 22-Oct-2006 |
yamt | sync with head
|
| 1.2.2.1 |
| 12-Oct-2006 |
yamt | file uvm_object.c was added on branch yamt-splraiseipl on 2006-10-22 06:07:53 +0000
|
| 1.3.30.2 |
| 08-Jan-2008 |
bouyer | Sync with HEAD
|
| 1.3.30.1 |
| 02-Jan-2008 |
bouyer | Sync with HEAD
|
| 1.3.26.1 |
| 04-Dec-2007 |
ad | Pull the vmlocking changes into a new branch.
|
| 1.3.24.1 |
| 18-Feb-2008 |
mjf | Sync with HEAD.
|
| 1.3.18.1 |
| 09-Jan-2008 |
matt | sync with HEAD
|
| 1.3.4.1 |
| 13-Mar-2007 |
ad | Pull in the initial set of changes for the vmlocking branch.
|
| 1.5.10.2 |
| 19-Aug-2009 |
yamt | sync with head.
|
| 1.5.10.1 |
| 16-May-2008 |
yamt | sync with head.
|
| 1.5.8.1 |
| 18-May-2008 |
yamt | sync with head.
|
| 1.5.6.1 |
| 02-Jun-2008 |
mjf | Sync with HEAD.
|
| 1.7.10.1 |
| 23-Jun-2011 |
cherry | Catchup with rmind-uvmplock merge.
|
| 1.7.4.6 |
| 19-May-2011 |
rmind | Implement sharing of vnode_t::v_interlock amongst vnodes:
- Lock is shared amongst UVM objects using uvm_obj_setlock() or getnewvnode().
- Adjust vnode cache to handle unsharing, add VI_LOCKSHARE flag for that.
- Use sharing in tmpfs and layerfs for underlying object.
- Simplify locking in ubc_fault().
- Sprinkle some asserts.
Discussed with ad@.
|
| 1.7.4.5 |
| 05-Mar-2011 |
rmind | sync with head
|
| 1.7.4.4 |
| 26-Apr-2010 |
rmind | Add ubc_purge() and purge/deassociate any related UBC entries during
object (usually, vnode) destruction. Since locking (and thus object)
is required to enter/remove mappings - object is not allowed anymore
to disappear with any UBC entries left.
From original patch by ad@ with some modifications.
|
| 1.7.4.3 |
| 24-Apr-2010 |
rmind | Amend previous.
|
| 1.7.4.2 |
| 23-Apr-2010 |
rmind | Use consistent naming - uvm_obj_*().
|
| 1.7.4.1 |
| 16-Mar-2010 |
rmind | Change struct uvm_object::vmobjlock to be dynamically allocated with
mutex_obj_alloc(). It allows us to share the locks among UVM objects.
|
| 1.7.2.3 |
| 12-Jul-2010 |
uebayasi | Reduce more diff by backing out XIP page specific code. Allow XIP pages
to be loaned.
|
| 1.7.2.2 |
| 31-May-2010 |
uebayasi | Re-define the definition of "device page"; device pages are pages of
device memory. Pages which don't have vm_page (== can't be used for
generic use), but whose PV are tracked, are called "direct pages" from
now.
|
| 1.7.2.1 |
| 12-Feb-2010 |
uebayasi | Teach device page handling.
|
| 1.11.16.1 |
| 18-May-2014 |
rmind | sync with head
|
| 1.11.12.2 |
| 03-Dec-2017 |
jdolecek | update from HEAD
|
| 1.11.12.1 |
| 20-Aug-2014 |
tls | Rebase to HEAD as of a few days ago.
|
| 1.11.2.4 |
| 22-May-2014 |
yamt | sync with head.
for a reference, the tree before this commit was tagged
as yamt-pagecache-tag8.
this commit was splitted into small chunks to avoid
a limitation of cvs. ("Protocol error: too many arguments")
|
| 1.11.2.3 |
| 26-Nov-2011 |
yamt | - uvm_page_array_fill: add some more parameters
- uvn_findpages: use gang-lookup
- genfs_putpages: re-enable backward clustering
- mechanical changes after the recent radixtree.h api changes
|
| 1.11.2.2 |
| 06-Nov-2011 |
yamt | remove pg->listq and uobj->memq
|
| 1.11.2.1 |
| 02-Nov-2011 |
yamt | page cache related changes
- maintain object pages in radix tree rather than rb tree.
- reduce unnecessary page scan in putpages. esp. when an object has a ton of
pages cached but only a few of them are dirty.
- reduce the number of pmap operations by tracking page dirtiness more
precisely in uvm layer.
- fix nfs commit range tracking.
- fix nfs write clustering. XXX hack
|
| 1.12.6.2 |
| 27-Dec-2015 |
skrll | Sync with HEAD (as of 26th Dec)
|
| 1.12.6.1 |
| 22-Sep-2015 |
skrll | Sync with HEAD
|
| 1.15.18.1 |
| 08-Apr-2020 |
martin | Merge changes from current as of 20200406
|
| 1.19.2.2 |
| 29-Feb-2020 |
ad | Sync with head.
|
| 1.19.2.1 |
| 17-Jan-2020 |
ad | Sync with head.
|
