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mirror of https://github.com/edk2-porting/linux-next.git synced 2024-11-30 05:25:20 +08:00
linux-next/block
Tejun Heo e61734c55c cgroup: remove cgroup->name
cgroup->name handling became quite complicated over time involving
dedicated struct cgroup_name for RCU protection.  Now that cgroup is
on kernfs, we can drop all of it and simply use kernfs_name/path() and
friends.  Replace cgroup->name and all related code with kernfs
name/path constructs.

* Reimplement cgroup_name() and cgroup_path() as thin wrappers on top
  of kernfs counterparts, which involves semantic changes.
  pr_cont_cgroup_name() and pr_cont_cgroup_path() added.

* cgroup->name handling dropped from cgroup_rename().

* All users of cgroup_name/path() updated to the new semantics.  Users
  which were formatting the string just to printk them are converted
  to use pr_cont_cgroup_name/path() instead, which simplifies things
  quite a bit.  As cgroup_name() no longer requires RCU read lock
  around it, RCU lockings which were protecting only cgroup_name() are
  removed.

v2: Comment above oom_info_lock updated as suggested by Michal.

v3: dummy_top doesn't have a kn associated and
    pr_cont_cgroup_name/path() ended up calling the matching kernfs
    functions with NULL kn leading to oops.  Test for NULL kn and
    print "/" if so.  This issue was reported by Fengguang Wu.

v4: Rebased on top of 0ab02ca8f8 ("cgroup: protect modifications to
    cgroup_idr with cgroup_mutex").

Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Acked-by: Michal Hocko <mhocko@suse.cz>
Acked-by: Li Zefan <lizefan@huawei.com>
Cc: Fengguang Wu <fengguang.wu@intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Balbir Singh <bsingharora@gmail.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
2014-02-12 09:29:50 -05:00
..
partitions block/partitions/efi.c: fix bound check 2013-11-21 16:42:27 -08:00
blk-cgroup.c cgroup: clean up cgroup_subsys names and initialization 2014-02-08 10:36:58 -05:00
blk-cgroup.h cgroup: remove cgroup->name 2014-02-12 09:29:50 -05:00
blk-core.c block: blk-mq: make blk_sync_queue support mq 2013-12-31 09:53:05 -07:00
blk-exec.c block: blk-mq: support draining mq queue 2013-12-31 09:53:05 -07:00
blk-flush.c block: submit_bio_wait() conversions 2013-11-24 16:33:41 -07:00
blk-integrity.c bio-integrity: Convert to bvec_iter 2013-11-23 22:33:50 -08:00
blk-ioc.c block: cleanup removing dependency on bootmem headers 2013-11-08 19:43:48 -07:00
blk-iopoll.c block: Replace __get_cpu_var uses 2013-11-08 08:59:58 -07:00
blk-lib.c block: Abstract out bvec iterator 2013-11-23 22:33:47 -08:00
blk-map.c block: Abstract out bvec iterator 2013-11-23 22:33:47 -08:00
blk-merge.c block: Really silence spurious compiler warnings 2013-12-03 14:29:09 -07:00
blk-mq-cpu.c block/blk-mq-cpu.c: use hotcpu_notifier() 2014-01-28 09:52:01 -07:00
blk-mq-cpumap.c blk-mq: new multi-queue block IO queueing mechanism 2013-10-25 11:56:00 +01:00
blk-mq-sysfs.c block: fix memory leaks on unplugging block device 2013-12-06 09:18:02 -07:00
blk-mq-tag.c percpu_ida: Make percpu_ida_alloc + callers accept task state bitmask 2014-01-23 20:17:18 +00:00
blk-mq-tag.h blk-mq: new multi-queue block IO queueing mechanism 2013-10-25 11:56:00 +01:00
blk-mq.c blk-mq: uses page->list incorrectly 2014-01-08 20:17:46 -07:00
blk-mq.h blk-mq: use __smp_call_function_single directly 2014-01-08 14:31:27 -07:00
blk-settings.c bcache/md: Use raid stripe size 2014-01-08 13:05:09 -08:00
blk-softirq.c kernel: remove CONFIG_USE_GENERIC_SMP_HELPERS 2013-11-15 09:32:22 +09:00
blk-sysfs.c block: blk-mq: don't export blk_mq_free_queue() 2013-12-31 09:53:05 -07:00
blk-tag.c block: Reserve only one queue tag for sync IO if only 3 tags are available 2013-06-28 21:32:27 +02:00
blk-throttle.c cgroup: update the meaning of cftype->max_write_len 2014-02-11 11:52:48 -05:00
blk-timeout.c Merge branch 'blk-mq/core' into for-3.13/core 2013-11-08 09:08:12 -07:00
blk.h blk-mq: new multi-queue block IO queueing mechanism 2013-10-25 11:56:00 +01:00
bsg-lib.c bsg: Remove unused function bsg_goose_queue() 2012-12-06 14:33:02 +01:00
bsg.c hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
cfq-iosched.c cgroup: update the meaning of cftype->max_write_len 2014-02-11 11:52:48 -05:00
cmdline-parser.c block: remove unrelated header files and export symbol 2014-01-21 20:18:26 -08:00
compat_ioctl.c kernel-wide: fix missing validations on __get/__put/__copy_to/__copy_from_user() 2013-09-11 15:58:18 -07:00
deadline-iosched.c block: Convert kmalloc_node(...GFP_ZERO...) to kzalloc_node(...) 2013-09-11 13:22:03 -06:00
elevator.c block: Abstract out bvec iterator 2013-11-23 22:33:47 -08:00
genhd.c block: Convert kmalloc_node(...GFP_ZERO...) to kzalloc_node(...) 2013-09-11 13:22:03 -06:00
ioctl.c block: replace IS_ERR and PTR_ERR with PTR_ERR_OR_ZERO 2013-11-08 09:05:31 -07:00
Kconfig block: change config option name for cmdline partition parsing 2013-09-30 14:31:02 -07:00
Kconfig.iosched blkcg: make CONFIG_BLK_CGROUP bool 2012-03-06 21:27:21 +01:00
Makefile blk-mq: new multi-queue block IO queueing mechanism 2013-10-25 11:56:00 +01:00
noop-iosched.c elevator: Fix a race in elevator switching 2013-07-03 13:25:24 +02:00
partition-generic.c Revert "loop: cleanup partitions when detaching loop device" 2013-04-08 10:12:11 +02:00
scsi_ioctl.c block: Fix memory leak in rw_copy_check_uvector() handling 2014-01-21 20:36:17 -08:00