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fail it is still good practise to either check the return value or to
provide a flag that won't (to avoid copy pasted code that gets it
wrong).
So change LK_EXCLUSIVE to LK_EXCLUSIVE | LK_RETRY, removing the one
caller of vn_lock in the tree that doesn't either pass LK_RETRY or check
the return value.
ok thib@, jsing@ as part of a larger diff.
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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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when the header is used by userspace.
ok miod@
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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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ok otto@
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prodded by and ok thib@
agreed by art@ and blambert@
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same diff as before, with the uninitalized variable fixed.
ok toby@
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which is exactly what the macro does.
Macro's that are nothing more then:
#define FUNCTION(arg) function(arg)
are almost always pointless and should go away.
OK blambert@
Agreed by many.
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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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by Antoine Jacoutot. back out for oga to look at when he gets back in
touch with earth.
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ok deraadt@
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the receiving side when passing fd's. ok deraadt@ kettenis@
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a locking botch in portal_open();
- set f_namemax at mount time and use copy_statfs_info() in
portal_statfs();
This diff is a slight tweak of the diff sent in PR5968 by
Frank Denis (j at pureftpd.org) Thanks!
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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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the superuser. access(2) will now only indicate success for X_OK on
non-directories if there is at least one execute bit set on the file.
OK deraadt@ thib@ otto@
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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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init the op array functions with whatever the define was set
too.
ok dlg@,blambert@
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ok dlg@
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init the op array functions with whatever the define was set
too.
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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ok gilles
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ok krw@
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version for i386
more architectures and ctob() replacement is being worked on
prodded by and ok miod
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ok pedro@ thib@
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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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free room in struct partition by packing fragment size and
fragments/block more tighlty and use the resulting space to make
offset and size 48 bits. For the disk part we use spare fields in
struct disklabel. Kernel converts in-mem copy of the on-disk
label if needed, disklabel(8) writes new version.
We are careful to only change fields not used by bootloaders.
Conception of basic scheme by deraadt.
ok deraadt@ krw@
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spec_read();
ok pedro@
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Zap all calls to simple_lock/unlock() on it (those calls are
#defined away though). Remove the LK_INTERLOCK from the calls
to vn_lock() and cleanup the filesystems wich implement VOP_LOCK().
(by remvoing the v_interlock from there calls to lockmgr()).
ok pedro@, art@, tedu@
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it's a good idea to use atomic.h operations on it. This mechanic
change updates all bit operations on p_flag to atomic_{set,clear}bits_int.
Only exception is that P_OWEUPC is set by MI code before calling
need_proftick and it's automatically cleared by ADDUPC. There's
no reason for MD handling of that flag since everyone handles it the
same way.
kettenis@ ok
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effectively been a no-op for quite some time now,
without promise for future usage.
ok pedro@
Testing by krw@ (earlier diff)
and Johan Mson Lindman (tybollt@solace.miun.se)
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devices with sectorsizes other than 512. e.g. cd's. Fixes PR #5235
from Paul Stoeber with a slightly tweaked diff. NetBSD did the same
with their r1.59 in 2001, closing their PR#3261 and PR#14026.
tweak suggestions and ok pedro@
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should never be referenced outside the context of the process to which
this stack belongs unless we do the PHOLD/PRELE dance. Loads of code
doesn't follow the rules here. Instead of trying to track down all
offenders and fix this hairy situation, it makes much more sense
to not swap kernel stacks.
From art@, tested by many some time ago.
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