31 Oct, 2011
2 commits
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With the module.h usage cleanup, we'll get this:
kernel/ksysfs.c:161: error: ‘S_IRUGO’ undeclared here (not in a function)
make[2]: *** [kernel/ksysfs.o] Error 1Signed-off-by: Paul Gortmaker
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The changed files were only including linux/module.h for the
EXPORT_SYMBOL infrastructure, and nothing else. Revector them
onto the isolated export header for faster compile times.Nothing to see here but a whole lot of instances of:
-#include
+#includeThis commit is only changing the kernel dir; next targets
will probably be mm, fs, the arch dirs, etc.Signed-off-by: Paul Gortmaker
20 Apr, 2011
1 commit
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A kernel booted with no_file_caps allows to install fscaps on a binary
but doesn't actually honor the fscaps when running the binary. Userspace
currently has no sane way to determine whether installing fscaps
actually has any effect. Since parsing /proc/cmdline is fragile this
patch exposes the current setting (1 or 0) via /sys/kernel/fscapsSigned-off-by: Ludwig Nussel
Signed-off-by: Greg Kroah-Hartman
22 May, 2010
1 commit
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This allows bin_attr->read,write,mmap callbacks to check file specific data
(such as inode owner) as part of any privilege validation.Signed-off-by: Chris Wright
Signed-off-by: Greg Kroah-Hartman
08 Mar, 2010
1 commit
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Conflicts:
Documentation/filesystems/proc.txt
arch/arm/mach-u300/include/mach/debug-macro.S
drivers/net/qlge/qlge_ethtool.c
drivers/net/qlge/qlge_main.c
drivers/net/typhoon.c
05 Feb, 2010
1 commit
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Signed-off-by: Thadeu Lima de Souza Cascardo
Signed-off-by: Jiri Kosina
21 Jan, 2010
1 commit
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Remove the USER_SCHED feature. It has been scheduled to be removed in
2.6.34 as per http://marc.info/?l=linux-kernel&m=125728479022976&w=2Signed-off-by: Dhaval Giani
Signed-off-by: Peter Zijlstra
LKML-Reference:
Signed-off-by: Ingo Molnar
16 Dec, 2009
1 commit
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Implement shrinking the reserved memory for crash kernel, if it is more
than enough.For example, if you have already reserved 128M, now you just want 100M,
you can do:# echo $((100*1024*1024)) > /sys/kernel/kexec_crash_size
Note, you can only do this before loading the crash kernel.
Signed-off-by: WANG Cong
Cc: Neil Horman
Acked-by: Eric W. Biederman
Cc: Andi Kleen
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
07 Jan, 2009
1 commit
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Access to uevent_seqnum and uevent_helper does not need to
depend on CONFIG_NET, so remove it.Signed-off-by: Ming Lei
Cc: Kay Sievers
Signed-off-by: Greg Kroah-Hartman
17 Oct, 2008
1 commit
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Way too often, I have a machine that exhibits some kind of crappy
behavior. The CPU looks wedged in the kernel or it is spending way too
much system time and I wonder what is responsible.I try to run readprofile. But, of course, Ubuntu doesn't enable it by
default. Dang!The reason we boot-time enable it is that it takes a big bufffer that we
generally can only bootmem alloc. But, does it hurt to at least try and
runtime-alloc it?To use:
echo 2 > /sys/kernel/profileThen run readprofile like normal.
This should fix the compile issue with allmodconfig. I've compile-tested
on a bunch more configs now including a few more architectures.Signed-off-by: Dave Hansen
Acked-by: Ingo Molnar
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
25 Jan, 2008
6 commits
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There is no need for kobject_unregister() anymore, thanks to Kay's
kobject cleanup changes, so replace all instances of it with
kobject_put().Cc: Kay Sievers
Signed-off-by: Greg Kroah-Hartman -
kernel_kset does not need to be a kset, but a much simpler kobject now
that we have kobj_attributes.We also rename kernel_kset to kernel_kobj to catch all users of this
symbol with a build error instead of an easy-to-ignore build warning.Cc: Kay Sievers
Signed-off-by: Greg Kroah-Hartman -
Clean up the use of ksets and kobjects. Kobjects are instances of
objects (like struct user_info), ksets are collections of objects of a
similar type (like the uids directory containing the user_info directories).
So, use kobjects for the user_info directories, and a kset for the "uids"
directory.On object cleanup, the final kobject_put() was missing.
Cc: Dhaval Giani
Cc: Srivatsa Vaddagiri
Signed-off-by: Kay Sievers
Signed-off-by: Greg Kroah-Hartman -
Switch all dynamically created ksets, that export simple attributes,
to kobj_attribute from subsys_attribute. Struct subsys_attribute will
be removed.Signed-off-by: Kay Sievers
Cc: Mike Halcrow
Cc: Phillip Hellewell
Signed-off-by: Greg Kroah-Hartman -
Dynamically create the kset instead of declaring it statically. We also
rename kernel_subsys to kernel_kset to catch all users of this symbol
with a build error instead of an easy-to-ignore build warning.Cc: Kay Sievers
Signed-off-by: Greg Kroah-Hartman -
We don't need a "default" ktype for a kset. We should set this
explicitly every time for each kset. This change is needed so that we
can make ksets dynamic, and cleans up one of the odd, undocumented
assumption that the kset/kobject/ktype model has.This patch is based on a lot of help from Kay Sievers.
Nasty bug in the block code was found by Dave Young
Cc: Kay Sievers
Cc: Dave Young
Signed-off-by: Greg Kroah-Hartman
17 Oct, 2007
2 commits
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[1/3] Cleanup the coding style according to Andrew's comments:
http://lists.infradead.org/pipermail/kexec/2007-August/000522.html
- vmcoreinfo_append_str() should have suitable __attribute__s so that
the compiler can check its use.
- vmcoreinfo_max_size should have size_t.
- Use get_seconds() instead of xtime.tv_sec.
- Use init_uts_ns.name.release instead of UTS_RELEASE.Signed-off-by: Ken'ichi Ohmichi
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This patch set frees the restriction that makedumpfile users should install a
vmlinux file (including the debugging information) into each system.makedumpfile command is the dump filtering feature for kdump. It creates a
small dumpfile by filtering unnecessary pages for the analysis. To
distinguish unnecessary pages, it needs a vmlinux file including the debugging
information. These days, the debugging package becomes a huge file, and it is
hard to install it into each system.To solve the problem, kdump developers discussed it at lkml and kexec-ml. As
the result, we reached the conclusion that necessary information for dump
filtering (called "vmcoreinfo") should be embedded into the first kernel file
and it should be accessed through /proc/vmcore during the second kernel.
(http://www.uwsg.iu.edu/hypermail/linux/kernel/0707.0/1806.html)Dan Aloni created the patch set for the above implementation.
(http://www.uwsg.iu.edu/hypermail/linux/kernel/0707.1/1053.html)And I updated it for multi architectures and memory models.
(http://lists.infradead.org/pipermail/kexec/2007-August/000479.html)Signed-off-by: Dan Aloni
Signed-off-by: Ken'ichi Ohmichi
Signed-off-by: Bernhard Walle
Signed-off-by: Daisuke Nishimura
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
15 Oct, 2007
1 commit
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Add tunables in sysfs to modify a user's cpu share.
A directory is created in sysfs for each new user in the system.
/sys/kernel/uids//cpu_share
Reading this file returns the cpu shares granted for the user.
Writing into this file modifies the cpu share for the user. Only an
administrator is allowed to modify a user's cpu share.Ex:
# cd /sys/kernel/uids/
# cat 512/cpu_share
1024
# echo 2048 > 512/cpu_share
# cat 512/cpu_share
2048
#Signed-off-by: Srivatsa Vaddagiri
Signed-off-by: Dhaval Giani
Signed-off-by: Ingo Molnar
21 Jul, 2007
1 commit
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Make it possible to use __start_notes and __stop_notes without getting a GPREL
overflow error from the FRV linker.Small variables that would otherwise be in .data or .bss may, depending on the
arch, be placed in special sections (.sdata or .sbss) that permit single
instruction references on fixed instruction width machines.__start_notes and __stop_notes aren't really char variables, and certainly
don't refer to data in .data or .bss. Making them type "void" fools the
compiler into not assuming anything about them.Signed-off-by: David Howells
Signed-off-by: Linus Torvalds
20 Jul, 2007
1 commit
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This patch adds the /sys/kernel/notes magic file. Reading this delivers the
contents of the kernel's .notes section. This lets userland easily glean any
detailed information about the running kernel's build that was stored there at
compile time.Signed-off-by: Roland McGrath
Cc: Andi Kleen
Cc: Paul Mackerras
Cc: Benjamin Herrenschmidt
Cc: Richard Henderson
Cc: Ivan Kokshaysky
Cc: Martin Schwidefsky
Cc: Heiko Carstens
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
03 May, 2007
1 commit
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We need to work on cleaning up the relationship between kobjects, ksets and
ktypes. The removal of 'struct subsystem' is the first step of this,
especially as it is not really needed at all.Thanks to Kay for fixing the bugs in this patch.
Signed-off-by: Greg Kroah-Hartman
01 Jul, 2006
1 commit
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Signed-off-by: Jörn Engel
Signed-off-by: Adrian Bunk
23 Jun, 2006
1 commit
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Create two files in /sys/kernel, kexec_loaded and kexec_crash_loaded. Each
file contains a simple boolean value indicating whether the relevant kernel
has been loaded into memory. The motivation for this is geared around
support.Signed-off-by: Jeff Moyer
Cc: "Eric W. Biederman"
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
24 Mar, 2006
1 commit
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uevent_seqnum and uevent_helper are only defined if CONFIG_HOTPLUG=y,
CONFIG_NET=n.(I stole this back from Greg's tree - it makes allnoconfig work).
Cc: Greg KH
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
21 Mar, 2006
1 commit
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Moving uevent_seqnum and uevent_helper to kobject_uevent.c
because they are used even if CONFIG_SYSFS=n
while kernel/ksysfs.c is built only if CONFIG_SYSFS=y,Signed-off-by: Jun'ichi Nomura
Signed-off-by: Greg Kroah-Hartman
11 Jan, 2006
1 commit
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- Kexec on panic functionality allocates memory for saving cpu registers in
case of system crash event. Address of this allocated memory needs to be
exported to user space, which is used by kexec-tools.- Previously, a single /sys/kernel/crash_notes entry was being exported as
memory allocated was a single continuous array. Now memory allocation being
dyanmic and per cpu based, address of per cpu buffer is exported through
"/sys/devices/system/cpu/cpuX/crash_notes"Signed-off-by: Vivek Goyal
Cc: Greg KH
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
05 Jan, 2006
3 commits
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lib/lib.a(kobject_uevent.o)(.text+0x25f): In function `kobject_uevent':
: undefined reference to `__alloc_skb'
lib/lib.a(kobject_uevent.o)(.text+0x2a1): In function `kobject_uevent':
: undefined reference to `skb_over_panic'
lib/lib.a(kobject_uevent.o)(.text+0x31d): In function `kobject_uevent':
: undefined reference to `skb_over_panic'
lib/lib.a(kobject_uevent.o)(.text+0x356): In function `kobject_uevent':
: undefined reference to `netlink_broadcast'
lib/lib.a(kobject_uevent.o)(.init.text+0x9): In function `kobject_uevent_init':
: undefined reference to `netlink_kernel_create'
make: *** [.tmp_vmlinux1] Error 1Netlink is unconditionally enabled if CONFIG_NET, so that's OK.
kobject_uevent.o is compiled even if !CONFIG_HOTPLUG, which is lazy.
Let's compound the sin.
Signed-off-by: Andrew Morton
Signed-off-by: Greg Kroah-Hartman -
Leave the overloaded "hotplug" word to susbsystems which are handling
real devices. The driver core does not "plug" anything, it just exports
the state to userspace and generates events.Signed-off-by: Kay Sievers
Signed-off-by: Greg Kroah-Hartman -
This deprecates the /proc/sys/kernel/hotplug file, as all
this stuff should be in /sys some day, right? :)
In /sys/kernel/ we have now uevent_seqnum and uevent_helper.
The seqnum is no longer used by udev, as the version for this
kernel depends on netlink which events will never get
out-of-order.Recent udev versions disable the /sbin/hotplug helper with
an init script, cause it leads to OOM on big boxes by running
hundreds of shells in parallel. It should be done now by:
echo "" > /sys/kernel/uevent_helper(Note that "-n" does not work, cause neighter proc nor sysfs
support truncate().)Signed-off-by: Kay Sievers
Signed-off-by: Greg Kroah-Hartman
26 Jun, 2005
1 commit
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o Following patch exports kexec global variable "crash_notes" to user space
through sysfs as kernel attribute in /sys/kernel.Signed-off-by: Maneesh Soni
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
17 Apr, 2005
1 commit
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Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.Let it rip!
