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ok deraadt@ krw@
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tested this with fuse _and_ drm on amd64 and macppc. Also tested with
cloning bpf (not in the tree) on macppc.
ok mikeb
"looks correct to me" millert
The original commit message is as follows:
Increase size of the clone bitmap. A limit of only 64 device clones
turned out to be too low for the upcoming work on cloning bpf. The new
limit is 1024 device clones. As part of the size increase, the bitmap
has been changed to be allocated separately to avoid bloating all device
nodes, as suggested by guenther, millert and deraadt.
ok millert mikeb
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turned out to be too low for the upcoming work on cloning bpf. The new
limit is 1024 device clones. As part of the size increase, the bitmap
has been changed to be allocated separately to avoid bloating all device
nodes, as suggested by guenther, millert and deraadt.
ok millert mikeb
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torture tested on amd64, i386 and macppc
ok beck mpi stefan
"the change looks right" deraadt
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preventing integer truncation.
Diff from Martin Natano
ok kettenis@
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- rename uiomove() to uiomovei() and update all its users.
- introduce uiomove(), which is similar to uiomovei() but with a size_t.
- rewrite uiomovei() as an uiomove() wrapper.
ok kettenis@
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architectures.
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objective: vnode.h doesn't include uvm_extern.h anymore.
followup changes: include uvm_extern.h or lock.h where necessary.
ok and help from deraadt
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CIRCLEQ_* is deprecated and not called in the tree. The other queue types
have *_END macros which were added for symmetry with CIRCLEQ_END. They are
defined as NULL. There's no reason to keep the other *_END macro calls.
ok millert@
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ok deraadt@
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it's locked for changing the type (i.e., revoke()). We already unlock
it while calling the d_open, d_read, and d_write routines and this is
safe for the same reason: the device routines operate at a lower level
and don't need the protection of the vnode locks. This is important
as the device close routine may block indefinitely.
"don't see anything wrong" tedu@
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ok guenther@
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will come back soon.
ok deraadt@
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This change splits the buffer cache free lists into lists of dma reachable
buffers and high memory buffers based on the ranges returned by pmemrange.
Buffers move from dma to high memory as they age, but are flipped to dma
reachable memory if IO is needed to/from and high mem buffer. The total
amount of buffers allocated is now bufcachepercent of both the dma and
the high memory region.
This change allows the use of large buffer caches on amd64 using more than
4 GB of memory
ok tedu@ krw@ - testing by many.
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test period; i think 3 years ago the last bugs fell out.
ok otto beck others
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msdos, NFS, fifos and devices, plus support for querying it in
getconf(2) and the requisite pathconf(2) manpage blurb
ok tedu@
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_PC_PRIO_IO, and _PC_SYNC_IO names in VOP_PATHCONF(), as they're
fs-independent for us. Since we don't support latter three on any
fs, we can also define the related _POSIX_{ASYNC,PRIO,SYNC}_IO
symbols in <unistd.h> (via sys/unistd.h) with value -1.
Also, zap pointless tty-only values from procfs(!).
ok beck@, deraadt@
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to diff against FreeBSD's.
From Brad; no object file change on amd64.
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actually exit. This means that the main thread will exit and free the
process group, which results in the thread dereferencing a null pointer
when it is woken back up. Avoid this by checking that the ps_pgrp is not
null before deferefencing it. Also expand the ps_session macro to avoid
hiding the dereference.
ok tedu@
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ok guenther
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ok deraadt
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filled in. Move D_CLONE down to 0x0001 as suggested by thib.
ok deraadt thib
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and return EOPNOTSUPP directly from the VOP_* functions.
Filesystems should, at some point fill in every function
in the vop_default struct so we can get rid of the 'if'
statements in VOP_*.
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unrelated, and his alpha is much happier now.
OK deraadt@
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have been resolved.
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vector setup that has questionable features (that have, as far as I can
tell never been used in practice, atleast not in OpenBSD), remove all
the gunk and favor a simple struct full of function pointers that get
set directly by each of the filesystems.
Removes gobs of ugly code and makes things simpler by a magnitude.
The only downside of this is that we loose the vnoperate feature so
the spec/fifo operations of the filesystems need to be kept in sync
with specfs and fifofs, this is no big deal as the API it self is pretty
static.
Many thanks to armani@ who pulled an earlier version of this diff to
current after c2k10 and Gabriel Kihlman on tech@ for testing.
Liked by many. "come on, find your balls" deraadt@.
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so that the process-level stuff is to/from struct process and not
struct proc. This fixes a bunch of problem cases in rthreads.
Based on earlier work by blambert and myself, but mostly written
at c2k10.
Tested by many: deraadt, sthen, krw, ray, and in snapshots
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gets rid of #include <sys/dkio.h> in sys/ioctl.h and adds #include
<sys/dkio.h> to the places that actually want and use the disk
ioctls.
this became an issue when krw@'s X build failed when he was testing
a change to dkio.h.
tested by krw@
help from and ok miod@
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prodded by and ok thib@
agreed by art@ and blambert@
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where doing bremfree() befure calling buf_acquire().
This is causing us headache pinning down a bug that showed up
when deraadt@ too cvs to current, and will have to be done
anyway as a preperation for backouts.
OK deraadt@
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Just put it in the buf_acquire function.
oga@ ok
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ok thib beck art
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file copies to nfsv2 causes the system to eventually peg the console.
On the console ^T indicates that the load is increasing rapidly, ddb
indicates many calls to getbuf, there is some very slow nfs traffic
making none (or extremely slow) progress. Eventually some machines
seize up entirely.
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1) remove multiple size queues, introduced as a stopgap.
2) decouple pages containing data from their mappings
3) only keep buffers mapped when they actually have to be mapped
(right now, this is when buffers are B_BUSY)
4) New functions to make a buffer busy, and release the busy flag
(buf_acquire and buf_release)
5) Move high/low water marks and statistics counters into a structure
6) Add a sysctl to retrieve buffer cache statistics
Tested in several variants and beat upon by bob and art for a year. run
accidentally on henning's nfs server for a few months...
ok deraadt@, krw@, art@ - who promises to be around to deal with any fallout
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with eopnotsupp() instead;
ok blambert@
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one thing of note, fifofs changes in that its bmap now
sets the runp too 0, but that was an oversight in the
old code.
ok art@
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ok dlg@
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init the op array functions with whatever the define was set
too.
ok dlg@,blambert@
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oga@'s upcoming DRM changes and too some degree ratchov@'s audio
work. It still works for bpf's though.
Parts from ratchov@; fstat(1) parts from Pedro Martelletto;
tested by many, ok'ed by a few;
"get going with cloning" deraadt@
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always fails". Introduce vop_generic_lookup(), which is a trivial lookup
routine that always fails and use that instead, zap the redundant copies.
ok toby@, tedu@, art@
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no binary change
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to proper types along the way (ints), fixes a subtle bug
wich otto@ pointed me at.
ok deraadt@
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"ap = v" comments in under 8 seconds, so it must be ok. and it compiles
too.
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