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48 Commits

Author SHA1 Message Date
ad 25153c3ec9 PR kern/37706 (forced unmount of file systems is unsafe): 
- Do reference counting for 'struct mount'. Each vnode associated with a
  mount takes a reference, and in turn the mount takes a reference to the
  vfsops.
- Now that mounts are reference counted, replace the overcomplicated mount
  locking inherited from 4.4BSD with a recursable rwlock.
 2008-01-30 11:46:59 +00:00
yamt 2294b0bcb6 procfs_douptime: simply use microuptime() instead of a mysterious calculation. 2007-12-22 01:06:54 +00:00
yamt 0d13423925 procfs_docpustat: g/c a write-only variable. 2007-12-22 01:04:55 +00:00
ad ad89ae5a21 Revision 1.42 was lost. Pointed out by Nicolas Joly: 
This was using mutex_exit where mutex_enter was required.
 2007-11-12 14:11:47 +00:00
christos dfdca25ef7 report the proper stack size on 32 bit emulations. 2007-11-11 18:29:03 +00:00
ad d18c6ca4de Merge from vmlocking: 
- pool_cache changes.
- Debugger/procfs locking fixes.
- Other minor changes.
 2007-11-07 00:23:13 +00:00
ad 6b7322f1ed This was using mutex_exit where mutex_enter was required. 2007-10-11 18:46:19 +00:00
ad 7dad9f7391 Merge from vmlocking: 
- Split vnode::v_flag into three fields, depending on field locking.
- simple_lock -> kmutex in a few places.
- Fix some simple locking problems.
 2007-10-10 20:42:20 +00:00
ad 36a1712707 Merge run time accounting changes from the vmlocking branch. These make 
the LWP "start time" per-thread instead of per-CPU.
 2007-10-08 20:06:17 +00:00
agc f1a5908695 In /proc/<pid>/statm, avoid leaking buffer space if the attempt to get 
vmspace information fails.

Return the nice value properly to userland via the /proc/<pid>/stat entry.

Use vm sizes from vmspace, rather than rusage structs, for the same
reasons as mentioned previously - see the comment in
kvm_proc.c::kvm_getproc2() about rusage values and zombie processes.
 2007-05-26 16:21:04 +00:00
agc 12003e8756 Use a bit more common code for the MULTIPROCESSOR and !MULTIPROCESSOR 
cases.

Use the lwp's priority when returning the priority value, rather than
returning the nice value.
 2007-05-25 22:26:14 +00:00
agc 15a3a67ede Various changes for better Linux emulation: 
+ in /proc/<pid>/statm emulation, use the memory values from vmspace,
rather than struct rusage, since the rusage values appear to be 0 for
all processes except zombies.  cf dsl's comment in
kvm_proc.c::kvm_getproc2()

+ in /proc/<pid>/stat, instead of returning the tv_sec value, return the
number of ticks we've had (roughly equivalent to the Linux jiffies).
Calculate these values from the tv_usec values.

Also:

+ enclose CPU_INFO_ITERATOR and CPU_INFO_FOREACH usage in #ifdef
MULTIPROCESSOR, at the request of Nick Hudson

Together, these changes allow htop to work on NetBSD.
 2007-05-25 19:20:06 +00:00
dogcow 905b715a4b use PRIu64, not llu, to unbork on 64-bit platforms. 2007-05-24 05:33:08 +00:00
agc 4dbe5ed7e7 Extend the Linux emulation of /proc to include 
/proc/stat
	/proc/loadavg and
	/proc/<pid>/statm.

These are only present when -o linux is specified as a mount option
to procfs.

Factor out some common code so that it can be used by a number of
functions.

XXX The values returned in the statm emulation need to be verified.
 2007-05-24 00:37:40 +00:00
christos 6a4825167b return a page less than the actual top of stack so that linux-java works. 2007-04-01 03:16:44 +00:00
ad c147748d84 - Make the proclist_lock a mutex. The write:read ratio is unfavourable, 
and mutexes are cheaper use than RW locks.
- LOCK_ASSERT -> KASSERT in some places.
- Hold proclist_lock/kernel_lock longer in a couple of places.
 2007-03-09 14:11:22 +00:00
ad b07ec3fc38 Merge newlock2 to head. 2007-02-09 21:55:00 +00:00
elad a687717695 Add two comments. No functional change. 2006-12-24 16:45:23 +00:00
christos 168cd830d2 __unused removal on arguments; approved by core. 2006-11-16 01:32:37 +00:00
christos 26bb1685bd don't allocate large buffers on the stack. 2006-10-27 16:49:01 +00:00
elad af94ee3081 PR/34888: Nicolas Joly: kernel panic while trying to access 
/emul/linux/proc/0/stat

Patch applied, thanks for the report!
 2006-10-23 18:19:14 +00:00
christos 4d595fd7b1 - sprinkle __unused on function decls. 
- fix a couple of unused bugs
- no more -Wno-unused for i386
 2006-10-12 01:30:41 +00:00
manu a540ef296e Emulate Linux's /proc/devices 2006-09-20 08:09:05 +00:00
christos f36aa0cd37 PR/33815: Nicolas Joly: /emul/linux/proc/#/stat always report current 
process status
 2006-06-24 16:34:02 +00:00
christos 95e1ffb156 merge ktrace-lwp. 2005-12-11 12:16:03 +00:00
christos c107ef9edc - sprinkle const 
- avoid shadowed variables.
 2005-05-29 21:55:33 +00:00
christos bb48399e9b Remove bogus len setting noted by J. Chapman Flack. 2005-03-01 04:39:59 +00:00
christos 1a63592a9b Give more space for cpu info and allocate it dynamically. 2005-02-27 22:29:50 +00:00
perry 477853c351 nuke trailing whitespace 2005-02-26 22:58:54 +00:00
jdolecek 845beacce3 add 'mounts' file for -o linux, which lists all currently mounted 
filesystems; Linux glibc statvfs() uses this to get some of mount flags,
and this file is also useful as /emul/linux/etc/mtab (via symlink)
 2004-09-20 17:53:08 +00:00
skrll 685703c354 Do previous slightly differently - just pass a struct lwp * and derive the 
struct proc *.

OK'd by Jaromir.
 2004-08-27 07:02:45 +00:00
jdolecek b1126ead62 fix process used for /proc/<pid>/stat contents - it should be process 
<pid>, not the current process looking at the information
 2004-08-21 15:59:32 +00:00
itojun 8bcb745d7c sprintf -> snprintf 2004-04-22 00:31:00 +00:00
christos 4c1141b840 t_pgrp can be null. 2003-10-30 14:51:01 +00:00
he 25d9b10ee9 Add casts of LINUX_USRSTACK and USRSTACK to handle the cases 
where these are not constants.
 2003-08-21 23:00:07 +00:00
christos c626c860b1 LINUX_USRSTACK is only defined on i386. Thanks Izumi! 2003-08-09 16:28:49 +00:00
christos a24080409e Only choose the linux usrstack if the netbsd usrstack was higher. 2003-08-09 14:17:28 +00:00
christos 9897a5425c Change the way we compute the top of the stack. This makes java-1.4.2 work. 2003-08-09 13:44:39 +00:00
fvdl d5aece61d6 Back out the lwp/ktrace changes. They contained a lot of colateral damage, 
and need to be examined and discussed more.
 2003-06-29 22:28:00 +00:00
darrenr 960df3c8d1 Pass lwp pointers throughtout the kernel, as required, so that the lwpid can 
be inserted into ktrace records.  The general change has been to replace
"struct proc *" with "struct lwp *" in various function prototypes, pass
the lwp through and use l_proc to get the process pointer when needed.

Bump the kernel rev up to 1.6V
 2003-06-28 14:20:43 +00:00
hannken 5c19a0665c Change "%qu" to "PRIu64" to make it compile on sparc64. 2003-05-29 08:13:41 +00:00
christos 210944c7de Add /proc/<pid>/stat for linux compat. j2sdk1.4.2 depends on it. 2003-05-28 18:03:15 +00:00
hannken 11d5f11e82 Change "%llu" to "PRIu64" to make it compile on sparc64. 2003-02-27 12:20:28 +00:00
jrf a2d850baf8 This addresses PR kerm/19989. Thanks to hamajima@nagoya.ydc.co.jp for submitting this patch which enables /proc/uptime for linux emul. Patch reviewed by atatat@netbsd.org and tron@netbsd.org, approved by tron@netbsd.org. 2003-02-25 21:00:31 +00:00
chs 8e9cdbbd63 replace "vnode" and "vtext" with "file" and "exec" in uvmexp field names. 2001-12-09 03:07:43 +00:00
lukem e4b00f433c add RCSIDs 2001-11-10 13:33:40 +00:00
tv 231789093f No-op revision to force update of this file to a non-"-kk" version. 2001-01-18 16:39:43 +00:00
fvdl 4e000b75b2 Add a few linux-style files, only enabled when -o linux is specified 
for the mount. Currently these are /proc/cpuinfo and /proc/meminfo.
The former only does something on i386 right now.
 2001-01-17 00:09:07 +00:00