mm/slab: rename CONFIG_SLAB to CONFIG_SLAB_DEPRECATED

As discussed at LSF/MM [1] [2] and with no objections raised there,
deprecate the SLAB allocator. Rename the user-visible option so that
users w

mm/slab: rename CONFIG_SLAB to CONFIG_SLAB_DEPRECATED

As discussed at LSF/MM [1] [2] and with no objections raised there,
deprecate the SLAB allocator. Rename the user-visible option so that
users with CONFIG_SLAB=y get a new prompt with explanation during make
oldconfig, while make olddefconfig will just switch to SLUB.

In all defconfigs with CONFIG_SLAB=y remove the line so those also
switch to SLUB. Regressions due to the switch should be reported to
linux-mm and slab maintainers.

[1] https://lore.kernel.org/all/4b9fc9c6-b48c-198f-5f80-811a44737e5f@suse.cz/
[2] https://lwn.net/Articles/932201/

Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
Acked-by: Hyeonggon Yoo <42.hyeyoo@gmail.com>
Acked-by: David Rientjes <rientjes@google.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> # m68k
Acked-by: Helge Deller <deller@gmx.de> # parisc

show more ...

treewide: defconfig: address renamed CONFIG_DEBUG_INFO=y

CONFIG_DEBUG_INFO is now implicitly selected if one picks one of the
explicit options that could be DEBUG_INFO_DWARF_TOOLCHAIN_DEFAULT,
DEBUG

treewide: defconfig: address renamed CONFIG_DEBUG_INFO=y

CONFIG_DEBUG_INFO is now implicitly selected if one picks one of the
explicit options that could be DEBUG_INFO_DWARF_TOOLCHAIN_DEFAULT,
DEBUG_INFO_DWARF4, DEBUG_INFO_DWARF5.

This was actually not what I had in mind when I suggested making it a
'choice' statement, but it's too late to change again now, and the Kconfig
logic is more sensible in the new form.

Change any defconfig file that had CONFIG_DEBUG_INFO enabled but did not
pick DWARF4 or DWARF5 explicitly to now pick the toolchain default.

Link: https://lkml.kernel.org/r/20220811114609.2097335-1-arnd@kernel.org
Fixes: f9b3cd245784 ("Kconfig.debug: make DEBUG_INFO selectable from a choice")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Kees Cook <keescook@chromium.org>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Vineet Gupta <vgupta@kernel.org>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Dinh Nguyen <dinguyen@kernel.org>
Cc: Yoshinori Sato <ysato@users.osdn.me>
Cc: Rich Felker <dalias@libc.org>
Cc: Richard Weinberger <richard@nod.at>
Cc: Anton Ivanov <anton.ivanov@cambridgegreys.com>
Cc: Johannes Berg <johannes@sipsolutions.net>
Cc: Chris Zankel <chris@zankel.net>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

show more ...

sh: configs: Cleanup old Kconfig IO scheduler options

CONFIG_IOSCHED_DEADLINE and CONFIG_IOSCHED_CFQ are gone since
commit f382fb0bcef4 ("block: remove legacy IO schedulers").

The IOSCHED_DEADLINE

sh: configs: Cleanup old Kconfig IO scheduler options

CONFIG_IOSCHED_DEADLINE and CONFIG_IOSCHED_CFQ are gone since
commit f382fb0bcef4 ("block: remove legacy IO schedulers").

The IOSCHED_DEADLINE was replaced by MQ_IOSCHED_DEADLINE and it will be
now enabled by default (along with MQ_IOSCHED_KYBER).

The BFQ_GROUP_IOSCHED is the only multiqueue scheduler which comes with
group scheduling so select it in configs previously choosing
CFQ_GROUP_IOSCHED.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Rich Felker <dalias@libc.org>

show more ...

sh: configs: Remove useless UEVENT_HELPER_PATH

Remove the CONFIG_UEVENT_HELPER_PATH because:
1. It is disabled since commit 1be01d4a5714 ("driver: base: Disable
CONFIG_UEVENT_HELPER by default")

sh: configs: Remove useless UEVENT_HELPER_PATH

Remove the CONFIG_UEVENT_HELPER_PATH because:
1. It is disabled since commit 1be01d4a5714 ("driver: base: Disable
CONFIG_UEVENT_HELPER by default") as its dependency (UEVENT_HELPER) was
made default to 'n',
2. It is not recommended (help message: "This should not be used today
[...] creates a high system load") and was kept only for ancient
userland,
3. Certain userland specifically requests it to be disabled (systemd
README: "Legacy hotplug slows down the system and confuses udev").

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>

show more ...

block: remove CONFIG_LBDAF

Currently support for 64-bit sector_t and blkcnt_t is optional on 32-bit
architectures. These types are required to support block device and/or
file sizes larger than 2 T

block: remove CONFIG_LBDAF

Currently support for 64-bit sector_t and blkcnt_t is optional on 32-bit
architectures. These types are required to support block device and/or
file sizes larger than 2 TiB, and have generally defaulted to on for
a long time. Enabling the option only increases the i386 tinyconfig
size by 145 bytes, and many data structures already always use
64-bit values for their in-core and on-disk data structures anyway,
so there should not be a large change in dynamic memory usage either.

Dropping this option removes a somewhat weird non-default config that
has cause various bugs or compiler warnings when actually used.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

show more ...

sh: defconfig: cleanup from old Kconfig options

Remove old, dead Kconfig options (in order appearing in this commit):
- EXPERIMENTAL is gone since v3.9;
- INET_LRO: commit 7bbf3cae65b6 ("ipv4: Rem

sh: defconfig: cleanup from old Kconfig options

Remove old, dead Kconfig options (in order appearing in this commit):
- EXPERIMENTAL is gone since v3.9;
- INET_LRO: commit 7bbf3cae65b6 ("ipv4: Remove inet_lro library");
- MTD_CONCAT: commit f53fdebcc3e1 ("mtd: drop MTD_CONCAT from Kconfig
entirely");
- MTD_PARTITIONS: commit 6a8a98b22b10 ("mtd: kill
CONFIG_MTD_PARTITIONS");
- MTD_CHAR: commit 660685d9d1b4 ("mtd: merge mtdchar module with
mtdcore");
- NETDEV_1000 and NETDEV_10000: commit f860b0522f65 ("drivers/net:
Kconfig and Makefile cleanup"); NET_ETHERNET should be replaced with
just ETHERNET but that is separate change;
- HID_SUPPORT: commit 1f41a6a99476 ("HID: Fix the generic Kconfig
options");
- RCU_CPU_STALL_DETECTOR: commit a00e0d714fbd ("rcu: Remove conditional
compilation for RCU CPU stall warnings");
- SYSCTL_SYSCALL_CHECK: commit 7c60c48f58a7 ("sysctl: Improve the
sysctl sanity checks");
- VIDEO_OUTPUT_CONTROL: commit f167a64e9d67 ("video / output: Drop
display output class support");
- MISC_DEVICES: commit 7c5763b8453a ("drivers: misc: Remove
MISC_DEVICES config option");
- AUTOFS_FS: commit 561c5cf9236a ("staging: Remove autofs3");
- IP_NF_QUEUE: commit 3dd6664fac7e ("netfilter: remove unused "config
IP_NF_QUEUE"");
- USB_DEVICE_CLASS: commit 007bab91324e ("USB: remove
CONFIG_USB_DEVICE_CLASS");
- USB_LIBUSUAL: commit f61870ee6f8c ("usb: remove libusual");
- DISPLAY_SUPPORT: commit 5a6b5e02d673 ("fbdev: remove display
subsystem");
- IP_NF_TARGET_ULOG: commit d4da843e6fad ("netfilter: kill remnants of
ulog targets");
- IP6_NF_QUEUE: commit d16cf20e2f2f ("netfilter: remove ip_queue
support");
- IP6_NF_TARGET_LOG: commit 6939c33a757b ("netfilter: merge ipt_LOG and
ip6_LOG into xt_LOG");

Link: http://lkml.kernel.org/r/1500526846-4072-1-git-send-email-krzk@kernel.org
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

show more ...

arch/defconfig: remove CONFIG_RESOURCE_COUNTERS

This option was replaced by PAGE_COUNTER which is selected by MEMCG.

Signed-off-by: Konstantin Khlebnikov <koct9i@gmail.com>
Acked-by: Arnd Bergmann

arch/defconfig: remove CONFIG_RESOURCE_COUNTERS

This option was replaced by PAGE_COUNTER which is selected by MEMCG.

Signed-off-by: Konstantin Khlebnikov <koct9i@gmail.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Balbir Singh <bsingharora@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

show more ...

PM: Eliminate CONFIG_PM_RUNTIME

Having switched over all of the users of CONFIG_PM_RUNTIME to use
CONFIG_PM directly, turn the latter into a user-selectable option
and drop the former entirely from

PM: Eliminate CONFIG_PM_RUNTIME

Having switched over all of the users of CONFIG_PM_RUNTIME to use
CONFIG_PM directly, turn the latter into a user-selectable option
and drop the former entirely from the tree.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Kevin Hilman <khilman@linaro.org>

show more ...

USB: remove CONFIG_USB_DEBUG from defconfig files

Now that CONFIG_USB_DEBUG is gone, remove it from a number of defconfig
files that were enabling it.

Signed-off-by: Greg Kroah-Hartman <gregkh@linu

USB: remove CONFIG_USB_DEBUG from defconfig files

Now that CONFIG_USB_DEBUG is gone, remove it from a number of defconfig
files that were enabling it.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

show more ...

memcg: rename config variables

Sanity:

CONFIG_CGROUP_MEM_RES_CTLR -> CONFIG_MEMCG
CONFIG_CGROUP_MEM_RES_CTLR_SWAP -> CONFIG_MEMCG_SWAP
CONFIG_CGROUP_MEM_RES_CTLR_SWAP_ENABLED -> CONFIG_MEMCG_SWAP_E

memcg: rename config variables

Sanity:

CONFIG_CGROUP_MEM_RES_CTLR -> CONFIG_MEMCG
CONFIG_CGROUP_MEM_RES_CTLR_SWAP -> CONFIG_MEMCG_SWAP
CONFIG_CGROUP_MEM_RES_CTLR_SWAP_ENABLED -> CONFIG_MEMCG_SWAP_ENABLED
CONFIG_CGROUP_MEM_RES_CTLR_KMEM -> CONFIG_MEMCG_KMEM

[mhocko@suse.cz: fix missed bits]
Cc: Glauber Costa <glommer@parallels.com>
Acked-by: Michal Hocko <mhocko@suse.cz>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Cc: David Rientjes <rientjes@google.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

show more ...

cgroup: remove the ns_cgroup

The ns_cgroup is an annoying cgroup at the namespace / cgroup frontier and
leads to some problems:

* cgroup creation is out-of-control
* cgroup name can conflict wh

cgroup: remove the ns_cgroup

The ns_cgroup is an annoying cgroup at the namespace / cgroup frontier and
leads to some problems:

* cgroup creation is out-of-control
* cgroup name can conflict when pids are looping
* it is not possible to have a single process handling a lot of
namespaces without falling in a exponential creation time
* we may want to create a namespace without creating a cgroup

The ns_cgroup was replaced by a compatibility flag 'clone_children',
where a newly created cgroup will copy the parent cgroup values.
The userspace has to manually create a cgroup and add a task to
the 'tasks' file.

This patch removes the ns_cgroup as suggested in the following thread:

https://lists.linux-foundation.org/pipermail/containers/2009-June/018616.html

The 'cgroup_clone' function is removed because it is no longer used.

This is a userspace-visible change. Commit 45531757b45c ("cgroup: notify
ns_cgroup deprecated") (merged into 2.6.27) caused the kernel to emit a
printk warning users that the feature is planned for removal. Since that
time we have heard from XXX users who were affected by this.

Signed-off-by: Daniel Lezcano <daniel.lezcano@free.fr>
Signed-off-by: Serge E. Hallyn <serge.hallyn@canonical.com>
Cc: Eric W. Biederman <ebiederm@xmission.com>
Cc: Jamal Hadi Salim <hadi@cyberus.ca>
Reviewed-by: Li Zefan <lizf@cn.fujitsu.com>
Acked-by: Paul Menage <menage@google.com>
Acked-by: Matt Helsley <matthltc@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

show more ...

PM: Remove CONFIG_PM_VERBOSE

Now that we have CONFIG_DYNAMIC_DEBUG there is no need for yet
another flag causing dev_dbg() and pr_debug() statements in the
core PM code to produce output. Moreover,

PM: Remove CONFIG_PM_VERBOSE

Now that we have CONFIG_DYNAMIC_DEBUG there is no need for yet
another flag causing dev_dbg() and pr_debug() statements in the
core PM code to produce output. Moreover, CONFIG_PM_VERBOSE
causes so much output to be generated that it's not really useful
and almost no one sets it.

References: https://bugzilla.kernel.org/show_bug.cgi?id=23182
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>

show more ...

sh: Add support for AP-SH4AD-0A board.

This adds preliminary support for the alpha project AP-SH4AD-0A reference
platform (SH7786 based).

Additional platform information available at:

http://www.

sh: Add support for AP-SH4AD-0A board.

This adds preliminary support for the alpha project AP-SH4AD-0A reference
platform (SH7786 based).

Additional platform information available at:

http://www.apnet.co.jp/product/superh/ap-sh4ad-0a.html

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

show more ...

sh: configs: Cleanup old Kconfig IO scheduler options

CONFIG_IOSCHED_DEADLINE and CONFIG_IOSCHED_CFQ are gone since
commit f382fb0bcef4 ("block: remove legacy IO schedulers").

T

sh: configs: Cleanup old Kconfig IO scheduler options

CONFIG_IOSCHED_DEADLINE and CONFIG_IOSCHED_CFQ are gone since
commit f382fb0bcef4 ("block: remove legacy IO schedulers").

The IOSCHED_DEADLINE was replaced by MQ_IOSCHED_DEADLINE and it will be
now enabled by default (along with MQ_IOSCHED_KYBER).

The BFQ_GROUP_IOSCHED is the only multiqueue scheduler which comes with
group scheduling so select it in configs previously choosing
CFQ_GROUP_IOSCHED.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Rich Felker <dalias@libc.org>

show more ...

sh: configs: Remove useless UEVENT_HELPER_PATH

Remove the CONFIG_UEVENT_HELPER_PATH because:
1. It is disabled since commit 1be01d4a5714 ("driver: base: Disable
CONFIG_UEVENT_HELP

sh: configs: Remove useless UEVENT_HELPER_PATH

Remove the CONFIG_UEVENT_HELPER_PATH because:
1. It is disabled since commit 1be01d4a5714 ("driver: base: Disable
CONFIG_UEVENT_HELPER by default") as its dependency (UEVENT_HELPER) was
made default to 'n',
2. It is not recommended (help message: "This should not be used today
[...] creates a high system load") and was kept only for ancient
userland,
3. Certain userland specifically requests it to be disabled (systemd
README: "Legacy hotplug slows down the system and confuses udev").

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>

show more ...

block: remove CONFIG_LBDAF

Currently support for 64-bit sector_t and blkcnt_t is optional on 32-bit
architectures. These types are required to support block device and/or
file sizes

block: remove CONFIG_LBDAF

Currently support for 64-bit sector_t and blkcnt_t is optional on 32-bit
architectures. These types are required to support block device and/or
file sizes larger than 2 TiB, and have generally defaulted to on for
a long time. Enabling the option only increases the i386 tinyconfig
size by 145 bytes, and many data structures already always use
64-bit values for their in-core and on-disk data structures anyway,
so there should not be a large change in dynamic memory usage either.

Dropping this option removes a somewhat weird non-default config that
has cause various bugs or compiler warnings when actually used.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

show more ...

sh: defconfig: cleanup from old Kconfig options

Remove old, dead Kconfig options (in order appearing in this commit):
- EXPERIMENTAL is gone since v3.9;
- INET_LRO: commit 7bbf3cae

sh: defconfig: cleanup from old Kconfig options

Remove old, dead Kconfig options (in order appearing in this commit):
- EXPERIMENTAL is gone since v3.9;
- INET_LRO: commit 7bbf3cae65b6 ("ipv4: Remove inet_lro library");
- MTD_CONCAT: commit f53fdebcc3e1 ("mtd: drop MTD_CONCAT from Kconfig
entirely");
- MTD_PARTITIONS: commit 6a8a98b22b10 ("mtd: kill
CONFIG_MTD_PARTITIONS");
- MTD_CHAR: commit 660685d9d1b4 ("mtd: merge mtdchar module with
mtdcore");
- NETDEV_1000 and NETDEV_10000: commit f860b0522f65 ("drivers/net:
Kconfig and Makefile cleanup"); NET_ETHERNET should be replaced with
just ETHERNET but that is separate change;
- HID_SUPPORT: commit 1f41a6a99476 ("HID: Fix the generic Kconfig
options");
- RCU_CPU_STALL_DETECTOR: commit a00e0d714fbd ("rcu: Remove conditional
compilation for RCU CPU stall warnings");
- SYSCTL_SYSCALL_CHECK: commit 7c60c48f58a7 ("sysctl: Improve the
sysctl sanity checks");
- VIDEO_OUTPUT_CONTROL: commit f167a64e9d67 ("video / output: Drop
display output class support");
- MISC_DEVICES: commit 7c5763b8453a ("drivers: misc: Remove
MISC_DEVICES config option");
- AUTOFS_FS: commit 561c5cf9236a ("staging: Remove autofs3");
- IP_NF_QUEUE: commit 3dd6664fac7e ("netfilter: remove unused "config
IP_NF_QUEUE"");
- USB_DEVICE_CLASS: commit 007bab91324e ("USB: remove
CONFIG_USB_DEVICE_CLASS");
- USB_LIBUSUAL: commit f61870ee6f8c ("usb: remove libusual");
- DISPLAY_SUPPORT: commit 5a6b5e02d673 ("fbdev: remove display
subsystem");
- IP_NF_TARGET_ULOG: commit d4da843e6fad ("netfilter: kill remnants of
ulog targets");
- IP6_NF_QUEUE: commit d16cf20e2f2f ("netfilter: remove ip_queue
support");
- IP6_NF_TARGET_LOG: commit 6939c33a757b ("netfilter: merge ipt_LOG and
ip6_LOG into xt_LOG");

Link: http://lkml.kernel.org/r/1500526846-4072-1-git-send-email-krzk@kernel.org
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

show more ...

arch/defconfig: remove CONFIG_RESOURCE_COUNTERS

This option was replaced by PAGE_COUNTER which is selected by MEMCG.

Signed-off-by: Konstantin Khlebnikov <koct9i@gmail.com>
Acke

arch/defconfig: remove CONFIG_RESOURCE_COUNTERS

This option was replaced by PAGE_COUNTER which is selected by MEMCG.

Signed-off-by: Konstantin Khlebnikov <koct9i@gmail.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Balbir Singh <bsingharora@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

show more ...

PM: Eliminate CONFIG_PM_RUNTIME

Having switched over all of the users of CONFIG_PM_RUNTIME to use
CONFIG_PM directly, turn the latter into a user-selectable option
and drop the forme

PM: Eliminate CONFIG_PM_RUNTIME

Having switched over all of the users of CONFIG_PM_RUNTIME to use
CONFIG_PM directly, turn the latter into a user-selectable option
and drop the former entirely from the tree.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Kevin Hilman <khilman@linaro.org>

show more ...

USB: remove CONFIG_USB_DEBUG from defconfig files

Now that CONFIG_USB_DEBUG is gone, remove it from a number of defconfig
files that were enabling it.

Signed-off-by: Greg Kroah-

USB: remove CONFIG_USB_DEBUG from defconfig files

Now that CONFIG_USB_DEBUG is gone, remove it from a number of defconfig
files that were enabling it.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

show more ...

memcg: rename config variables

Sanity:

CONFIG_CGROUP_MEM_RES_CTLR -> CONFIG_MEMCG
CONFIG_CGROUP_MEM_RES_CTLR_SWAP -> CONFIG_MEMCG_SWAP
CONFIG_CGROUP_MEM_RES_CTLR_SWAP_ENABLE

memcg: rename config variables

Sanity:

CONFIG_CGROUP_MEM_RES_CTLR -> CONFIG_MEMCG
CONFIG_CGROUP_MEM_RES_CTLR_SWAP -> CONFIG_MEMCG_SWAP
CONFIG_CGROUP_MEM_RES_CTLR_SWAP_ENABLED -> CONFIG_MEMCG_SWAP_ENABLED
CONFIG_CGROUP_MEM_RES_CTLR_KMEM -> CONFIG_MEMCG_KMEM

[mhocko@suse.cz: fix missed bits]
Cc: Glauber Costa <glommer@parallels.com>
Acked-by: Michal Hocko <mhocko@suse.cz>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Cc: David Rientjes <rientjes@google.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

show more ...

cgroup: remove the ns_cgroup

The ns_cgroup is an annoying cgroup at the namespace / cgroup frontier and
leads to some problems:

* cgroup creation is out-of-control
* cgr

cgroup: remove the ns_cgroup

The ns_cgroup is an annoying cgroup at the namespace / cgroup frontier and
leads to some problems:

* cgroup creation is out-of-control
* cgroup name can conflict when pids are looping
* it is not possible to have a single process handling a lot of
namespaces without falling in a exponential creation time
* we may want to create a namespace without creating a cgroup

The ns_cgroup was replaced by a compatibility flag 'clone_children',
where a newly created cgroup will copy the parent cgroup values.
The userspace has to manually create a cgroup and add a task to
the 'tasks' file.

This patch removes the ns_cgroup as suggested in the following thread:

https://lists.linux-foundation.org/pipermail/containers/2009-June/018616.html

The 'cgroup_clone' function is removed because it is no longer used.

This is a userspace-visible change. Commit 45531757b45c ("cgroup: notify
ns_cgroup deprecated") (merged into 2.6.27) caused the kernel to emit a
printk warning users that the feature is planned for removal. Since that
time we have heard from XXX users who were affected by this.

Signed-off-by: Daniel Lezcano <daniel.lezcano@free.fr>
Signed-off-by: Serge E. Hallyn <serge.hallyn@canonical.com>
Cc: Eric W. Biederman <ebiederm@xmission.com>
Cc: Jamal Hadi Salim <hadi@cyberus.ca>
Reviewed-by: Li Zefan <lizf@cn.fujitsu.com>
Acked-by: Paul Menage <menage@google.com>
Acked-by: Matt Helsley <matthltc@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

show more ...

PM: Remove CONFIG_PM_VERBOSE

Now that we have CONFIG_DYNAMIC_DEBUG there is no need for yet
another flag causing dev_dbg() and pr_debug() statements in the
core PM code to produce ou

PM: Remove CONFIG_PM_VERBOSE

Now that we have CONFIG_DYNAMIC_DEBUG there is no need for yet
another flag causing dev_dbg() and pr_debug() statements in the
core PM code to produce output. Moreover, CONFIG_PM_VERBOSE
causes so much output to be generated that it's not really useful
and almost no one sets it.

References: https://bugzilla.kernel.org/show_bug.cgi?id=23182
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>

show more ...

sh: Add support for AP-SH4AD-0A board.

This adds preliminary support for the alpha project AP-SH4AD-0A reference
platform (SH7786 based).

Additional platform information availab

sh: Add support for AP-SH4AD-0A board.

This adds preliminary support for the alpha project AP-SH4AD-0A reference
platform (SH7786 based).

Additional platform information available at:

http://www.apnet.co.jp/product/superh/ap-sh4ad-0a.html

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

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