Tejun Heo ed95779340 cgroup: kill cgroup_subsys->__DEPRECATED_clear_css_refs ... 2ef37d3fe4 ("memcg: Simplify mem_cgroup_force_empty_list error handling") removed the last user of __DEPRECATED_clear_css_refs. This patch removes __DEPRECATED_clear_css_refs and mechanisms to support it. * Conditionals dependent on __DEPRECATED_clear_css_refs removed. * cgroup_clear_css_refs() can no longer fail. All that needs to be done are deactivating refcnts, setting CSS_REMOVED and putting the base reference on each css. Remove cgroup_clear_css_refs() and the failure path, and open-code the loops into cgroup_rmdir(). This patch keeps the two for_each_subsys() loops separate while open coding them. They can be merged now but there are scheduled changes which need them to be separate, so keep them separate to reduce the amount of churn. local_irq_save/restore() from cgroup_clear_css_refs() are replaced with local_irq_disable/enable() for simplicity. This is safe as cgroup_rmdir() is always called with IRQ enabled. Note that this IRQ switching is necessary to ensure that css_tryget() isn't called from IRQ context on the same CPU while lower context is between CSS deactivation and setting CSS_REMOVED as css_tryget() would hang forever in such cases waiting for CSS to be re-activated or CSS_REMOVED set. This will go away soon. v2: cgroup_call_pre_destroy() removal dropped per Michal. Commit message updated to explain local_irq_disable/enable() conversion. Signed-off-by: Tejun Heo <tj@kernel.org> Reviewed-by: Michal Hocko <mhocko@suse.cz> Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Acked-by: Li Zefan <lizefan@huawei.com>		2012-11-05 09:16:58 -08:00
..
acpi	Merge branches 'delete-gts-bfs', 'misc', 'novell-bugzilla-757888-numa' and 'osc-pcie' into base	2012-08-03 00:31:23 -04:00
asm-generic	syscalls: add __NR_kcmp syscall to generic unistd.h	2012-09-26 15:26:30 -04:00
crypto
drm	drm: Drop the NV12M and YUV420M formats	2012-09-13 12:38:10 +09:00
keys
linux	cgroup: kill cgroup_subsys->__DEPRECATED_clear_css_refs	2012-11-05 09:16:58 -08:00
math-emu
media	[media] v4l2: add core support for the new VIDIOC_ENUM_FREQ_BANDS ioctl	2012-07-30 20:23:05 -03:00
memory
misc
mtd
net	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2012-09-21 14:32:55 -07:00
pcmcia
ras
rdma	Merge branches 'cma', 'cxgb4', 'misc', 'mlx4-sriov', 'mlx-cleanups', 'ocrdma' and 'qib' into for-linus	2012-07-22 23:26:17 -07:00
rxrpc
scsi	Merge branch 'master' [vanilla Linus master] into libata-dev.git/upstream	2012-07-25 15:58:48 -04:00
sound	ASoC: Additional updates for 3.6	2012-08-20 21:26:04 +02:00
target	target: support zero allocation length in REQUEST SENSE	2012-09-07 11:14:21 -07:00
trace	tracing: Don't call page_to_pfn() if page is NULL	2012-09-20 15:51:16 -04:00
video	video: da8xx-fb: configure FIFO threshold to reduce underflow errors	2012-07-29 01:11:09 +00:00
xen	xen/m2p: do not reuse kmap_op->dev_bus_addr	2012-09-12 11:21:40 -04:00
Kbuild