26 Jul, 2008
40 commits
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All the bsdacct-related info will be stored in the area, pointer by this
one.It will be NULL automatically for all new namespaces.
Signed-off-by: Pavel Emelyanov
Cc: Balbir Singh
Cc: "Eric W. Biederman"
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
It makes many fields initialization implicit helping in auto-setting
#ifdef-ed fields (bsd-acct related pointer will be such).Signed-off-by: Pavel Emelyanov
Cc: Balbir Singh
Cc: "Eric W. Biederman"
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
After I fixed access to task->tgid in kernel/acct.c, Oleg pointed out some
bad side effects with this accounting vs pid namespaces interaction. I.e.
when some task in pid namespace sets this accounting up, this blocks all
the others from doing the same. Restricting this to init namespace only
could help, but didn't look a graceful solution.So here is the approach to make this accounting work with pid namespaces
properly.The idea is simple - when a task dies it accounts itself in each namespace
it is visible from and which set the accounting up.For example here are the commands run and the output of lastcomm from init
and sub namespaces:init_ns# accton pacct
sub_ns# accton pacct (this is a different file - sub ns is run in
a chroot-ed environment)
init_ns# cat /dev/null
sub_ns# ls /dev/null
init_ns# accton
sub_ns# acctonsub_ns# lastcomm -f pacct
ls 0 [136,0] 0.00 secs Thu May 15 10:30
accton 0 [136,0] 0.00 secs Thu May 15 10:30init_ns# lastcomm -f pacct
accton root pts/0 0.00 secs Thu May 15 14:30 << got from sub
cat root pts/1 0.00 secs Thu May 15 14:30
ls root pts/0 0.00 secs Thu May 15 14:30 << got from sub
accton root pts/1 0.00 secs Thu May 15 14:30That was the summary, the details are in patches.
This patch:
It will be visible in pid_namespace.h file, so fix its name to look better
outside the acct.c file.Signed-off-by: Pavel Emelyanov
Cc: Balbir Singh
Cc: "Eric W. Biederman"
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Adapt acct_update_integrals() to include user time when calculating the time
difference. The units of acct_rss_mem1 and acct_vm_mem1 are also changed from
pages-jiffies to pages-usecs to avoid calling jiffies_to_usecs() in
xacct_add_tsk() which might overflow.Signed-off-by: Jonathan Lim
Cc: Ingo Molnar
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
With the removal of the Solaris binary emulation the export of
uts_sem became unused.Signed-off-by: Adrian Bunk
Acked-by: David S. Miller
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
kernel/trace/trace_sysprof.c:164:20: warning: Using plain integer as NULL pointer
Signed-off-by: Harvey Harrison
Cc: Mathieu Desnoyers
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
rcu_barrier_sched() and call_rcu_sched() were introduced in 2.6.26 for the
Markers. Change the marker code to use them.It can be seen as a fix since the marker code was using an ugly,
temporary, #ifdef hack to work around CONFIG_PREEMPT_RCU.Signed-off-by: Mathieu Desnoyers
Acked-by: Paul McKenney
Cc: Ingo Molnar
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
ATA over Ethernet: The semaphore emsgs_sema is used for signalling an
event, convert it in a completion.Signed-off-by: Matthias Kaehlcke
Cc: "Ed L. Cashin"
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
It seems to me that it was a mistake marking this function as deprecated
and scheduling it for removal, rather than resolutely removing it after
the last caller's death.Anyway - better late, then never.
Signed-off-by: Pavel Emelyanov
Cc: Oleg Nesterov
Cc: "Eric W. Biederman"
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This one had the only users so far - the kill_proc, which is removed, so
drop this (invalid in namespaced world) call too.And of course - erase all references on it from comments.
Signed-off-by: Pavel Emelyanov
Cc: Oleg Nesterov
Cc: "Eric W. Biederman"
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This function operated on a pid_t to kill a task, which is no longer valid
in a containerized system.It has finally lost all its users and we can safely remove it from the
tree.Signed-off-by: Pavel Emelyanov
Cc: Oleg Nesterov
Cc: "Eric W. Biederman"
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
When struct pid is built on a 64 bit platform gcc has to insert padding to
maintain the correct alignment, by simply reordering its members the
memory usage shrinks from 88 bytes to 80.I've successfully run with this patch on my desktop AMD64 machine.
There are no significant kernel size changes to a default config.X86_64
on the latest git v2.6.26-rc1text data bss dec hex filename
5404828 976760 734280 7115868 6c945c vmlinux
5404811 976760 734280 7115851 6c944b vmlinux.pid-patchAcked-by: "Eric W. Biederman"
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This patch adds proper prototypes for pid{hash,map}_init() in
include/linux/pid_namespace.hSigned-off-by: Adrian Bunk
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Extend the permission check for networking sysctl's to allow modification
when current process has CAP_NET_ADMIN capability and is not root. This
version uses the until now unused permissions hook to override the mode
value for /proc/sys/net if accessed by a user with capabilities.Found while working with Quagga. It is impossible to turn forwarding
on/off through the command interface because Quagga uses secure coding
practice of dropping privledges during initialization and only raising via
capabilities when necessary. Since the dameon has reset real/effective
uid after initialization, all attempts to access /proc/sys/net variables
will fail.Signed-off-by: Stephen Hemminger
Acked-by: "Eric W. Biederman"
Cc: Chris Wright
Cc: Alexey Dobriyan
Cc: Andrew Morgan
Cc: Pavel Emelyanov
Cc: "David S. Miller"
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Catch, e. g., 644/0644 typo.
Signed-off-by: Alexey Dobriyan
Acked-by: "Eric W. Biederman"
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Move EXPORT_SYMBOL right after the func
Signed-off-by: David Sterba
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Signed-off-by: Alexey Dobriyan
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
MS_RMT_MASK will unmask changes in do_remount_sb() anyway.
Signed-off-by: Alexey Dobriyan
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Current two-stage scheme of removing PDE emphasizes one bug in proc:
open
rmmod
remove_proc_entry
close->release won't be called because ->proc_fops were cleared. In simple
cases it's small memory leak.For every ->open, ->release has to be done. List of openers is introduced
which is traversed at remove_proc_entry() if neeeded.Discussions with Al long ago (sigh).
Signed-off-by: Alexey Dobriyan
Cc: Al Viro
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This patch moves the extern of struct proc_kmsg_operations to
fs/proc/internal.h and adds an #include "internal.h" to fs/proc/kmsg.c
so that the latter sees the former.Signed-off-by: Adrian Bunk
Cc: Alexey Dobriyan
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
With the removal of the Solaris binary emulation the export of
proc_clear_tty became unused.Signed-off-by: Adrian Bunk
Acked-by: David S. Miller
Acked-by: Alan Cox
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Signed-off-by: Akinobu Mita
Cc: Abhay Salunke
Cc: Zhang Rui
Cc: Matt Domsch
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
convert the local Dprintk() compile time debug printk wrappers to the
generic pr_debug() wrapper.Signed-off-by: Thomas Gleixner
Cc: Matt Domsch
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Now that add_partition() has been aught to propagate errors, let's check them.
[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Abdel Benamrouche
Cc: Jens Axboe
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
fs/partitions/check.c:381: warning: ignoring return value of ___device_add___,
declared with attribute warn_unused_result[akpm@linux-foundation.org: multiple-return-statements-per-function are evil]
Signed-off-by: Abdel Benamrouche
Cc: Jens Axboe
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Signed-off-by: Akinobu Mita
Cc: Doug Warzecha
Cc: Zhang Rui
Cc: Matt Domsch
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Signed-off-by: Akinobu Mita
Cc: Greg Kroah-Hartman
Cc: Markus Rechberger
Cc: Kay Sievers
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Tell users that the driver is only for PCI devices to stop asking for
support of firewire and parallel devices.Signed-off-by: Jiri Slaby
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
- remove unused macro
- some whitespace cleanup
- useless debug prints removalSigned-off-by: Jiri Slaby
Acked-by: Alan Cox
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Remove a support of ISA addresses predefined at compile time. It is
unused (filled by zeroes) and prolongs the code. Don't initialize global
array and add `ioaddr' module param description.Signed-off-by: Jiri Slaby
Acked-by: Alan Cox
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
- use dev_* for printing in pci probe function
- move ISA p[rints directly into isa find function, do not postpone it.
Remove macros bound to it then.
- prepend some prints by "mxser: " to know what it belongs toSigned-off-by: Jiri Slaby
Acked-by: Alan Cox
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Update Documentation/moxa-smartio to the later document from the mxser
package.Signed-off-by: Jiri Slaby
Acked-by: Alan Cox
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
- remove unused mxvar_diagflag
- move mxser_msr into the only user/function
- GMStatus, hmm, fix race-prone access to it. We need only one instance for
real, not MXSER_PORTS. Move it to MOXA_GETMSTATUS ioctl.
- mxser_mon_ext, almost the same, but alloc it on heap, since it has more than
2 kilos.
- fix indexing, `i' is not the index value, `i * MXSER_PORTS_PER_BOARD + j' isSigned-off-by: Jiri Slaby
Acked-by: Alan Cox
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
- remove break ctl from ioctl handler, it's never reached, since
tty_ops->break_ctl is defined (mxser break handling is done in software)
- mark MOXA_GET_MAJOR as deprecated
- fix TIOCGICOUNT (some retval non-checks of put_user). Use copy_to_user
to whole structure instead.Signed-off-by: Jiri Slaby
Acked-by: Alan Cox
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Signed-off-by: Akinobu Mita
Cc: Russell King
Cc: Tim Schmielau
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Push the BKL down into the driver ioctl methods
Signed-off-by: Alan Cox
Cc: Jiri Slaby
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Signed-off-by: Alan Cox
Cc: Jiri Kosina
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Signed-off-by: Alan Cox
Cc: Jiri Slaby
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Signed-off-by: Alan Cox
Cc: Nishanth Aravamudan
Cc: Domen Puncer
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Also fix the capability checking for firmware load.
Signed-off-by: Alan Cox
Cc: Jiri Slaby
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
