15 Jun, 2016
1 commit
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Nothing is using its return value so change it to return void.
No functionality change.
Signed-off-by: Borislav Petkov
Signed-off-by: Rafael J. Wysocki
04 Feb, 2014
1 commit
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arch/arm/mach-tegra/pm.c, kernel/power/console.c and mm/vmpressure.c
were somehow getting slab.h indirectly through cgroup.h which in turn
was getting it indirectly through xattr.h. A scheduled cgroup change
drops xattr.h inclusion from cgroup.h and breaks compilation of these
three files. Add explicit slab.h includes to the three files.A pending cgroup patch depends on this change and it'd be great if
this can be routed through cgroup/for-3.14-fixes branch.Signed-off-by: Tejun Heo
Acked-by: Stephen Warren
Cc: Thierry Reding
Cc: linux-tegra@vger.kernel.org
Cc: "Rafael J. Wysocki"
Cc: linux-pm@vger.kernel.org
Cc: Johannes Weiner
Cc: Michal Hocko
Cc: Balbir Singh
Cc: KAMEZAWA Hiroyuki
Cc: cgroups@vger.kernel.org
22 Dec, 2013
1 commit
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kmemleak reported a memory leak as below.
unreferenced object 0xffff880118f14700 (size 32):
comm "swapper/0", pid 1, jiffies 4294877401 (age 123.283s)
hex dump (first 32 bytes):
00 01 10 00 00 00 ad de 00 02 20 00 00 00 ad de .......... .....
00 d4 d2 18 01 88 ff ff 01 00 00 00 00 04 00 00 ................
backtrace:
[] kmemleak_alloc+0x4e/0xb0
[] kmem_cache_alloc_trace+0x1ec/0x260
[] pm_vt_switch_required+0x76/0xb0
[] register_framebuffer+0x195/0x320
[] efifb_probe+0x718/0x780
[] platform_drv_probe+0x45/0xb0
[] driver_probe_device+0x87/0x3a0
[] __driver_attach+0x93/0xa0
[] bus_for_each_dev+0x63/0xa0
[] driver_attach+0x1e/0x20
[] bus_add_driver+0x180/0x250
[] driver_register+0x64/0xf0
[] __platform_driver_register+0x4a/0x50
[] efifb_driver_init+0x12/0x14
[] do_one_initcall+0xfa/0x1b0
[] kernel_init_freeable+0x17b/0x201In pm_vt_switch_required(), "entry" variable is allocated via kmalloc().
So, in pm_vt_switch_unregister(), it needs to call kfree() when object
is deleted from list.Signed-off-by: Masami Ichikawa
Reviewed-by: Pavel Machek
Signed-off-by: Rafael J. Wysocki
20 Feb, 2013
1 commit
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KMS drivers can potentially restore the display configuration without
userspace help. Such drivers can can call a new funciton,
pm_vt_switch_required(false) if they support this feature. In that
case, the PM layer won't VT switch to the suspend console at suspend
time and then back to the original VT on resume, but rather leave things
alone for a nicer looking suspend and resume sequence.v2: make a function so we can handle multiple drivers (Alan)
v3: use a list to track device requests (Rafael)
v4: Squash in build fix from Jesse for CONFIG_VT_CONSOLE_SLEEP=n
v5: Squash in patch from Wu Fengguang to add a few missing static
qualifiers.
v6: Add missing EXPORT_SYMBOL.Signed-off-by: Jesse Barnes
Reviewed-by: Rafael J. Wysocki (v3)
Signed-off-by: Daniel Vetter
17 Oct, 2011
1 commit
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Introduce the config option CONFIG_VT_CONSOLE_SLEEP in order to cleanup
the #if defined ugliness for the vt suspend support functions. Note that
CONFIG_VT_CONSOLE is already dependant on CONFIG_VT.The function pm_set_vt_switch is actually dependant on CONFIG_VT and not
CONFIG_PM_SLEEP. This fixes a compile error when CONFIG_PM_SLEEP is
not set:drivers/tty/vt/vt_ioctl.c:1794: error: redefinition of 'pm_set_vt_switch'
include/linux/suspend.h:17: error: previous definition of 'pm_set_vt_switch' was hereAlso, remove the incorrect path from the comment in console.c.
[rjw: Replaced #if defined() with #ifdef in suspend.h.]
Signed-off-by: H Hartley Sweeten
Acked-by: Arnd Bergmann
Signed-off-by: Rafael J. Wysocki
16 Dec, 2009
1 commit
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The kernel offers with TIOCL_GETKMSGREDIRECT ioctl() the possibility to
redirect the kernel messages to a specific console.However, since it's not possible to switch to the kernel message console
after a panic(), it would be nice if the kernel would print the panic
message on the current console.This patch series adds a new interface to access the global kmsg_redirect
variable by a function to be able to use it in code where
CONFIG_VT_CONSOLE is not set (kernel/panic.c).This patch:
Instead of using and exporting a global value kmsg_redirect, introduce a
function vt_kmsg_redirect() that both can set and return the console where
messages are printed.Change all users of kmsg_redirect (the VT code itself and kernel/power.c)
to the new interface.The main advantage is that vt_kmsg_redirect() can also be used when
CONFIG_VT_CONSOLE is not set.Signed-off-by: Bernhard Walle
Cc: Alan Cox
Cc: Ingo Molnar
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
20 Sep, 2009
1 commit
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In the past someone gratuitiously borrowed chunks of kernel internal vt
code and dumped them in kernel/power. They have all sorts of deep relations
with the vt code so put them in the vt tree insteadSigned-off-by: Alan Cox
Signed-off-by: Greg Kroah-Hartman
22 Feb, 2009
1 commit
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Avoids later waking up to a blinking cursor if the device woke up and
returned to sleep before the console switch happened.Signed-off-by: Brian Swetland
Signed-off-by: Arve Hjønnevåg
Signed-off-by: Rafael J. Wysocki
Cc: Len Brown
Cc: Greg KH
Signed-off-by: Linus Torvalds
28 Apr, 2008
1 commit
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Prior to suspend, we allocate and switch to a new VT; after suspend, we switch
back to the original VT. This can be slow, and is completely unnecessary if
the framebuffer we're using can restore video properly.This adds a hook that allows drivers to select whether or not to do this vt
switch, and changes the gxfb driver to call this hook. It also adds a module
param to gxfb to allow controlling of the vt switch (defaulting to no switch).(Note: I'm not convinced that console_sem is the best way to protect this, but
we should probably have some form of locking..)[akpm@linux-foundation.org: build fix]
Signed-off-by: Andres Salomon
Cc: Jordan Crouse
Cc: "Antonino A. Daplas"
Cc: Pavel Machek
Cc: "Rafael J. Wysocki"
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
17 Mar, 2007
1 commit
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When the console is in VT_AUTO+KD_GRAPHICS mode, switching to the
SUSPEND_CONSOLE fails, resulting in vt_waitactive() waiting indefinitely or
until the task is interrupted. This patch tests if a console switch can
occur in set_console() and returns early if a console switch is not
possible.[akpm@linux-foundation.org: cleanup]
Signed-off-by: Andrew Johnson
Acked-by: Pavel Machek
Cc: "Antonino A. Daplas"
Cc: "Rafael J. Wysocki"
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
08 Feb, 2006
1 commit
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Fix compilation problem in PM headers.
Signed-off-by: Rafael J. Wysocki
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
02 Feb, 2006
1 commit
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Prevent the kernel from setting the log level to 10 unconditionally during
suspend/resume which was needed in the past for debugging, but generally is
undesirable.Signed-off-by: Rafael J. Wysocki
Acked-by: Pavel Machek
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!
