Commit Graph

113 Commits

Author SHA1 Message Date
Giorgos Keramidas
050f8bb67d Spell proc/sys/kernel/pid_max correctly in a comment.
Submitted by:	rdivacky
2006-10-11 20:32:46 +00:00
Alexander Leidinger
236e97b2b2 Implement /proc/sys/kernel/pid_max.
Submitted by:	rdivacky
Tested with:	LTP
2006-10-08 16:55:27 +00:00
Konstantin Belousov
1565bf54af Lock the vnode around the call to VOP_GETATTR. Move the locked code
and vn_fullpath (that call malloc(..., M_WAITOK)) from under the
vm object lock, since sleep is not allowed while holding the mutex.

Being there, wrap VOP_GETATTR call with conditional Giant aquire.
Currently this is (almost) noop because pseudofs is Giant-locked.

Tested by:	kris
Approved by:	pjd (mentor)
MFC after:	2 weeks
2006-08-08 12:29:26 +00:00
Alexander Leidinger
550be19e16 Improve linprovfs to provide/fix the
- process state (idle, sleeping, running, ...) [1]
 - the process group ID of the process which owns the connected tty
 - some page fault stats
 - time spend in kernel/userland
 - priority/nice value
 - starttime [1]
 - memory/swap stats
 - scheduling policy

Additionally add some new fields and correct some not filled out ones.

This brings us down to 15 dummy fields.

The fields marked with [1] are needed to get Oracle 10 running. The starttime
field is not completely right, since it displays the _same_ starttime for
_every_ process, but at least it is not 0 and Oracle accepts this.

This is a RELENG_x_y candidate.

Noticed by:	Dmitry Ganenko <dima@apk-inform.com> [1]
Reviewed by:	des, rdivacky
MFC after:	1 week
2006-06-27 20:11:58 +00:00
Dag-Erling Smørgrav
5ef57544fc Add the model name, obtained from the hw.model sysctl variable.
MFC after:	3 weeks
2006-06-12 18:14:49 +00:00
Dag-Erling Smørgrav
b19bfd3db5 As far as I can tell, the correct CPU family for amd64 (which Linux calls
x86_64) is 15, not 6.

MFC after:	3 weeks
2006-06-02 13:01:25 +00:00
John Baldwin
73dbd3da73 Remove various bits of conditional Alpha code and fixup a few comments. 2006-05-12 05:04:46 +00:00
Doug Ambrisko
060e488247 Enhance the Linux emulation layer to make MegaRAID SAS managements tool happy.
Add back in a scheme to emulate old type major/minor numbers via hooks into
stat, linprocfs to return major/minors that Linux app's expect.  Currently
only /dev/null is always registered.  Drivers can register via the Linux
type shim similar to the ioctl shim but by using
linux_device_register_handler/linux_device_unregister_handler functions.
The structure is:

    struct linux_device_handler {
        char    *bsd_driver_name;
        char    *linux_driver_name;
        char    *bsd_device_name;
        char    *linux_device_name;
        int     linux_major;
        int     linux_minor;
        int     linux_char_device;
    };

Linprocfs uses this to display the major number of the driver.  The
soon to be available linsysfs will use it to fill in the driver name.
Linux_stat uses it to translate the major/minor into Linux type values.

Note major numbers are dynamically assigned via passing in a -1 for
the major number so we don't need to keep track of them.

This is somewhat needed due to us switching to our devfs.  MegaCli
will not run until I add in the linsysfs and mfi Linux compat changes.

Sponsored by:	IronPort Systems
2006-05-05 16:10:45 +00:00
Max Laier
2694019753 Fix calculation of meminfo's swaptotal and swapfree on at least amd64.
MFC after:	3 days
2005-12-11 21:37:42 +00:00
Craig Rodrigues
2207c7648e Remove MNT_NODEV mount option. In RELENG_6, MNT_NODEV was a no-op.
The presence of MNT_NODEV was confusing the am-utils autoconf scripts.

PR:	conf/79715
2005-11-29 00:28:17 +00:00
Maxim Sobolev
996358f55c Always produce cpuX entries, even in the case when there is only one CPU
in the system. This is consistent with what real linuxes do.

PR:		kern/75848
Submitted by:	Andriy Gapon <avg@icyb.net.ua>
MFC after:	3 days
2005-03-06 22:28:14 +00:00
David E. O'Brien
1997c537be Match the LINUX32's style with existing style
Submitted by:	Jung-uk Kim <jkim@niksun.com>

Use positive, not negative logic.
2005-01-14 04:44:56 +00:00
Warner Losh
898b0535b7 Start each of the license/copyright comments with /*- 2005-01-05 22:34:37 +00:00
Colin Percival
691b3b0df9 Fix unvalidated pointer dereference. This is FreeBSD-SA-04:17.procfs. 2004-12-01 21:33:02 +00:00
Poul-Henning Kamp
7689860fd5 Pick up the inode number using VOP_GETATTR() rather than caching it
in all vnodes on the off chance that linprocfs needs it.  If we can afford
to call vn_fullpath() we can afford the much cheaper VOP_GETATTR().
2004-11-10 07:25:37 +00:00
Tim J. Robbins
84880f87d0 Add support for 32-bit Linux binary emulation on amd64:
- include <machine/../linux32/linux.h> instead of <machine/../linux/linux.h>
  if building with the COMPAT_LINUX32 option.
- make minimal changes to the i386 linprocfs_docpuinfo() function to support
  amd64. We return a fake CPU family of 6 for now.
2004-08-16 08:19:18 +00:00
Pawel Jakub Dawidek
c5b7c33bc8 Remove ps_argsopen from this check, because of two reasons:
1. This check if wrong, because it is true by default
   (kern.ps_argsopen is 1 by default) (p_cansee() is not even checked).
2. Sysctl kern.ps_argsopen is going away.
2004-04-01 00:04:23 +00:00
Dag-Erling Smørgrav
38efe50cbd Remove VFS_STATFS() call which violated the lock order and wasn't
really required anyway.

PR:		kern/61994
Submitted by:	Bjoern Groenvall <bg@sics.se>
2004-02-09 20:33:42 +00:00
Robert Watson
09dbf7a214 Correct for proper vn_fullpath() failure mode: "== -1" -> "!= 0"
Discussed with:	des
2004-01-12 03:14:37 +00:00
Alan Cox
277b62040d Lock the traversal of the vm object list. Use TAILQ_FOREACH consistently. 2004-01-02 19:29:31 +00:00
Dag-Erling Smørgrav
3f907e34d7 Use mp_ncpus instead of the hw.ncpu sysctl. 2003-12-07 17:38:20 +00:00
Olivier Houchard
c92dcdd99c Various style and type fixes in my last commit.
Suggested by:	mux
2003-10-20 04:10:20 +00:00
Olivier Houchard
faf1e14786 Implement partially /proc/<pid>/maps.
It looks enough to make SImics run.

Reviewed by:	des
2003-10-19 14:13:51 +00:00
Andrew Gallatin
1827b9e9c9 make kernel_sysctl()'s args match its prototype in order to fix the
alpha build
2003-10-08 18:05:59 +00:00
Dag-Erling Smørgrav
7ea97b6027 Fix a (fortunately harmless) signed / unsigned bug. 2003-09-30 13:35:19 +00:00
Dag-Erling Smørgrav
e705f0f0f9 Previous commit contained too-smart-for-its-own-good code that might
produce incorrect (though harmless) output on single-CPU systems.
2003-09-22 16:05:11 +00:00
Dag-Erling Smørgrav
e54c4ad8ac Fake multi-cpu statistics for proc/stat by dividing the totals by the
number of CPUs.

PR:		kern/27522
2003-09-22 15:52:32 +00:00
Dag-Erling Smørgrav
7d10d0554c Fix some broken comments. 2003-09-09 19:22:55 +00:00
Dag-Erling Smørgrav
0dd872f5bb Add cwd, root and statm (modeled on a 2.4.20 kernel). De-obfuscate
linprocfs_init() a little and remove some gratuitous whitespace.
2003-09-09 08:19:06 +00:00
Dag-Erling Smørgrav
9a69494e8b Whitespace cleanup. 2003-08-18 13:30:15 +00:00
Marcel Moolenaar
3e25ce2310 Cleanup <machine/cpu.h> by moving MD prototypes to <machine/md_var.h>
like we have on other platforms. Move savectx() to <machine/pcb.h>.
A lot of files got these MD prototypes through the indirect inclusion
of <machine/cpu.h> and now need to include <machine/md_var.h>. The
number of which is unexpectedly large...

osf1_misc.c especially is tricky because szsigcode is redefined in
one of the osf1 header files. Reordering of the include files was
needed.

linprocfs.c now needs an explicit extern declaration.

Tested with: LINT
2003-08-17 06:42:08 +00:00
Dag-Erling Smørgrav
bccbc20f63 Add support for multiple CPUs to cpuinfo. 2003-08-04 10:55:22 +00:00
Poul-Henning Kamp
567104a148 Add a new function swap_pager_status() which reports the total size of the
paging space and how much of it is in use (in pages).

Use this interface from the Linuxolator instead of groping around in the
internals of the swap_pager.
2003-07-18 10:26:09 +00:00
David E. O'Brien
16dbc7f228 Use __FBSDID(). 2003-06-10 21:29:12 +00:00
John Baldwin
90af4afacb - Merge struct procsig with struct sigacts.
- Move struct sigacts out of the u-area and malloc() it using the
  M_SUBPROC malloc bucket.
- Add a small sigacts_*() API for managing sigacts structures: sigacts_alloc(),
  sigacts_free(), sigacts_copy(), sigacts_share(), and sigacts_shared().
- Remove the p_sigignore, p_sigacts, and p_sigcatch macros.
- Add a mutex to struct sigacts that protects all the members of the struct.
- Add sigacts locking.
- Remove Giant from nosys(), kill(), killpg(), and kern_sigaction() now
  that sigacts is locked.
- Several in-kernel functions such as psignal(), tdsignal(), trapsignal(),
  and thread_stopped() are now MP safe.

Reviewed by:	arch@
Approved by:	re (rwatson)
2003-05-13 20:36:02 +00:00
John Baldwin
418e9d1b9e P_SHOULDSTOP used to be p_stat == SSTOP and needed the sched_lock, now it
is protected by the proc lock and doesnt' need sched_lock, so adjust the
locking appropriately.
2003-04-17 21:58:45 +00:00
John Baldwin
4bedc36141 Fix multiple printf warnings on Alpha:
- Prefer long long to quad_t to match printf args.
- Use uintmax_t and %j to print segsz_t and vm_size_t values.
- Fix others in Alpha-specific code.
2003-04-16 19:46:26 +00:00
John Baldwin
b62f75cf44 - Change the linux_[gs]et_os{name, release, s_version}() functions to
take a thread instead of a proc for their first argument.
- Add a mutex to protect the system-wide Linux osname, osrelease, and
  oss_version variables.
- Change linux_get_prison() to take a thread instead of a proc for its
  first argument and to use td_ucred rather than p_ucred.  This is ok
  because a thread's prison does not change even though it's ucred might.
- Also, change linux_get_prison() to return a struct prison * instead of
  a struct linux_prison * since it returns with the struct prison locked
  and this makes it easier to safely unlock the prison when we are done
  messing with it.
2003-03-13 22:45:43 +00:00
Poul-Henning Kamp
f341ca9891 Remove #include <sys/dkstat.h> 2003-02-16 14:13:23 +00:00
Jeffrey Hsu
b30a244c34 SMP locking for ifnet list. 2002-12-22 05:35:03 +00:00
Julian Elischer
1dab89f156 Remove the process state PRS_WAIT.
It is never used. I left it there from pre-KSE days as I didn't know
if I'd need it or not but now I know I don't.. It's functionality
is in TDI_IWAIT in the thread.
2002-10-21 22:27:36 +00:00
Juli Mallett
1d9c56964d Back our kernel support for reliable signal queues.
Requested by:	rwatson, phk, and many others
2002-10-01 17:15:53 +00:00
Juli Mallett
1226f694e6 First half of implementation of ksiginfo, signal queues, and such. This
gets signals operating based on a TailQ, and is good enough to run X11,
GNOME, and do job control.  There are some intricate parts which could be
more refined to match the sigset_t versions, but those require further
evaluation of directions in which our signal system can expand and contract
to fit our needs.

After this has been in the tree for a while, I will make in kernel API
changes, most notably to trapsignal(9) and sendsig(9), to use ksiginfo
more robustly, such that we can actually pass information with our
(queued) signals to the userland.  That will also result in using a
struct ksiginfo pointer, rather than a signal number, in a lot of
kern_sig.c, to refer to an individual pending signal queue member, but
right now there is no defined behaviour for such.

CODAFS is unfinished in this regard because the logic is unclear in
some places.

Sponsored by:	New Gold Technology
Reviewed by:	bde, tjr, jake [an older version, logic similar]
2002-09-30 20:20:22 +00:00
Jake Burkholder
05ba50f522 Use the fields in the sysentvec and in the vm map header in place of the
constants VM_MIN_ADDRESS, VM_MAXUSER_ADDRESS, USRSTACK and PS_STRINGS.
This is mainly so that they can be variable even for the native abi, based
on different machine types.  Get stack protections from the sysentvec too.
This makes it trivial to map the stack non-executable for certain abis, on
machines that support it.
2002-09-21 22:07:17 +00:00
Julian Elischer
71fad9fdee Completely redo thread states.
Reviewed by:	davidxu@freebsd.org
2002-09-11 08:13:56 +00:00
Julian Elischer
e602ba25fd Part 1 of KSE-III
The ability to schedule multiple threads per process
(one one cpu) by making ALL system calls optionally asynchronous.
to come: ia64 and power-pc patches, patches for gdb, test program (in tools)

Reviewed by:	Almost everyone who counts
	(at various times, peter, jhb, matt, alfred, mini, bernd,
	and a cast of thousands)

	NOTE: this is still Beta code, and contains lots of debugging stuff.
	expect slight instability in signals..
2002-06-29 17:26:22 +00:00
John Baldwin
f44d9e24fb Change p_can{debug,see,sched,signal}()'s first argument to be a thread
pointer instead of a proc pointer and require the process pointed to
by the second argument to be locked.  We now use the thread ucred reference
for the credential checks in p_can*() as a result.  p_canfoo() should now
no longer need Giant.
2002-05-19 00:14:50 +00:00
John Baldwin
590ae816c2 - p_cansee() needs the target process locked.
- We need the proc lock held for more of procfs_doprocstatus().
2002-04-13 23:09:41 +00:00
John Baldwin
65c9b4303b - Change fill_kinfo_proc() to require that the process is locked when it
is called.
- Change sysctl_out_proc() to require that the process is locked when it
  is called and to drop the lock before it returns.  If this proves too
  complex we can change sysctl_out_proc() to simply acquire the lock at
  the very end and have the calling code drop the lock right after it
  returns.
- Lock the process we are going to export before the p_cansee() in the
  loop in sysctl_kern_proc() and hold the lock until we call
  sysctl_out_proc().
- Don't call p_cansee() on the process about to be exported twice in
  the aforementioned loop.
2002-04-09 20:10:46 +00:00
Alfred Perlstein
e9b192b758 Protect proc struct (p_args and p_comm) when doing procfs IO that pulls
data from it.

Submitted by: Jonathan Mini <mini@haikugeek.com>
2002-03-29 19:12:40 +00:00