linux-toradex.git/fs/proc/Makefile, branch v3.10.5

mm, vmalloc: move get_vmalloc_info() to vmalloc.c

2013-04-29T22:54:33+00:00

Now get_vmalloc_info() is in fs/proc/mmu.c.  There is no reason that this
code must be here and it's implementation needs vmlist_lock and it iterate
a vmlist which may be internal data structure for vmalloc.

It is preferable that vmlist_lock and vmlist is only used in vmalloc.c
for maintainability. So move the code to vmalloc.c

Signed-off-by: Joonsoo Kim 
Signed-off-by: Joonsoo Kim 
Cc: Thomas Gleixner 
Cc: "H. Peter Anvin" 
Cc: Atsushi Kumagai 
Cc: Chris Metcalf 
Cc: Dave Anderson 
Cc: Eric Biederman 
Cc: Guan Xuetao 
Cc: Ingo Molnar 
Cc: Vivek Goyal 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

tty: Added a CONFIG_TTY option to allow removal of TTY

2013-01-19T00:15:27+00:00

The option allows you to remove TTY and compile without errors. This
saves space on systems that won't support TTY interfaces anyway.
bloat-o-meter output is below.

The bulk of this patch consists of Kconfig changes adding "depends on
TTY" to various serial devices and similar drivers that require the TTY
layer.  Ideally, these dependencies would occur on a common intermediate
symbol such as SERIO, but most drivers "select SERIO" rather than
"depends on SERIO", and "select" does not respect dependencies.

bloat-o-meter output comparing our previous minimal to new minimal by
removing TTY.  The list is filtered to not show removed entries with awk
'$3 != "-"' as the list was very long.

add/remove: 0/226 grow/shrink: 2/14 up/down: 6/-35356 (-35350)
function                                     old     new   delta
chr_dev_init                                 166     170      +4
allow_signal                                  80      82      +2
static.__warned                              143     142      -1
disallow_signal                               63      62      -1
__set_special_pids                            95      94      -1
unregister_console                           126     121      -5
start_kernel                                 546     541      -5
register_console                             593     588      -5
copy_from_user                                45      40      -5
sys_setsid                                   128     120      -8
sys_vhangup                                   32      19     -13
do_exit                                     1543    1526     -17
bitmap_zero                                   60      40     -20
arch_local_irq_save                          137     117     -20
release_task                                 674     652     -22
static.spin_unlock_irqrestore                308     260     -48

Signed-off-by: Joe Millenbach 
Reviewed-by: Jamey Sharp 
Reviewed-by: Josh Triplett 
Signed-off-by: Greg Kroah-Hartman

procfs: Use the proc generic infrastructure for proc/self.

2012-11-19T11:09:34+00:00

I had visions at one point of splitting proc into two filesystems.  If
that had happened proc/self being the the part of proc that actually deals
with pids would have been a nice cleanup.  As it is proc/self requires
a lot of unnecessary infrastructure for a single file.

The only user visible change is that a mounted /proc for a pid namespace
that is dead now shows a broken proc symlink, instead of being completely
invisible.  I don't think anyone will notice or care.

Signed-off-by: Eric W. Biederman

procfs: Move /proc/pid/fd[info] handling code to fd.[ch]

2012-09-27T01:10:01+00:00

This patch prepares the ground for further extension of
/proc/pid/fd[info] handling code by moving fdinfo handling
code into fs/proc/fd.c.

I think such move makes both fs/proc/base.c and fs/proc/fd.c
easier to read.

Signed-off-by: Cyrill Gorcunov 
Acked-by: Pavel Emelyanov 
CC: Al Viro 
CC: Alexey Dobriyan 
CC: Andrew Morton 
CC: James Bottomley 
CC: "Aneesh Kumar K.V" 
CC: Alexey Dobriyan 
CC: Matthew Helsley 
CC: "J. Bruce Fields" 
CC: "Aneesh Kumar K.V" 
Signed-off-by: Al Viro

ns: proc files for namespace naming policy.

2011-05-10T21:31:44+00:00

Create files under /proc//ns/ to allow controlling the
namespaces of a process.

This addresses three specific problems that can make namespaces hard to
work with.
- Namespaces require a dedicated process to pin them in memory.
- It is not possible to use a namespace unless you are the child
  of the original creator.
- Namespaces don't have names that userspace can use to talk about
  them.

The namespace files under /proc//ns/ can be opened and the
file descriptor can be used to talk about a specific namespace, and
to keep the specified namespace alive.

A namespace can be kept alive by either holding the file descriptor
open or bind mounting the file someplace else.  aka:
mount --bind /proc/self/ns/net /some/filesystem/path
mount --bind /proc/self/fd/ /some/filesystem/path

This allows namespaces to be named with userspace policy.

It requires additional support to make use of these filedescriptors
and that will be comming in the following patches.

Acked-by: Daniel Lezcano 
Signed-off-by: Eric W. Biederman

proc: move proc_console.c to fs/proc/consoles.c

2011-01-13T16:03:17+00:00

Filename is supposed to match procfile name for random junk.

Add __init while I'm at it.

Signed-off-by: Alexey Dobriyan 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

console: add /proc/consoles

2010-11-16T20:50:17+00:00

It allows users to see what consoles are currently known to the system
and with what flags.

It is based on Werner's patch, the part about traversing fds was
removed, the code was moved to kernel/printk.c, where consoles are
handled and it makes more sense to me.

Signed-off-by: Jiri Slaby  [cleanups]
Signed-off-by: "Dr. Werner Fink" 
Cc: Al Viro 
Cc: Greg Kroah-Hartman 
Signed-off-by: Greg Kroah-Hartman

procfs: simplify conditional processing of fs/proc.o.

2010-08-11T15:59:20+00:00

Since the entire fs/proc directory is conditionally included based on
CONFIG_PROC_FS, it's redundant to check that same variable within that
directory.

Signed-off-by: Robert P. J. Day 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

proc: export statistics for softirq to /proc

2009-06-18T20:03:41+00:00

Export statistics for softirq in /proc/softirqs and /proc/stat.

1. /proc/softirqs
Implement /proc/softirqs which shows the number of softirq
for each CPU like /proc/interrupts.

2. /proc/stat
Add the "softirq" line to /proc/stat.
This line shows the number of softirq for all cpu.
The first column is the total of all softirqs and
each subsequent column is the total for particular softirq.

[kosaki.motohiro@jp.fujitsu.com: remove redundant for_each_possible_cpu() loop]
Signed-off-by: Keika Kobayashi 
Reviewed-by: Hiroshi Shimamoto 
Cc: KOSAKI Motohiro 
Cc: Ingo Molnar 
Cc: Eric Dumazet 
Cc: Alexey Dobriyan 
Signed-off-by: KOSAKI Motohiro 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

proc: remove fs/proc/proc_misc.c

2008-10-23T14:54:05+00:00

Now that everything was moved to their more or less expected places,
apply rm(1).

Signed-off-by: Alexey Dobriyan