• Linus Torvalds's avatar
    Merge branch 'for-5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup · 1b96a41b
    Linus Torvalds authored
    Pull cgroup updates from Tejun Heo:
     "There are several notable changes here:
    
       - Single thread migrating itself has been optimized so that it
         doesn't need threadgroup rwsem anymore.
    
       - Freezer optimization to avoid unnecessary frozen state changes.
    
       - cgroup ID unification so that cgroup fs ino is the only unique ID
         used for the cgroup and can be used to directly look up live
         cgroups through filehandle interface on 64bit ino archs. On 32bit
         archs, cgroup fs ino is still the only ID in use but it is only
         unique when combined with gen.
    
       - selftest and other changes"
    
    * 'for-5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup: (24 commits)
      writeback: fix -Wformat compilation warnings
      docs: cgroup: mm: Fix spelling of "list"
      cgroup: fix incorrect WARN_ON_ONCE() in cgroup_setup_root()
      cgroup: use cgrp->kn->id as the cgroup ID
      kernfs: use 64bit inos if ino_t is 64bit
      kernfs: implement custom exportfs ops and fid type
      kernfs: combine ino/id lookup functions into kernfs_find_and_get_node_by_id()
      kernfs: convert kernfs_node->id from union kernfs_node_id to u64
      kernfs: kernfs_find_and_get_node_by_ino() should only look up activated nodes
      kernfs: use dumber locking for kernfs_find_and_get_node_by_ino()
      netprio: use css ID instead of cgroup ID
      writeback: use ino_t for inodes in tracepoints
      kernfs: fix ino wrap-around detection
      kselftests: cgroup: Avoid the reuse of fd after it is deallocated
      cgroup: freezer: don't change task and cgroups status unnecessarily
      cgroup: use cgroup->last_bstat instead of cgroup->bstat_pending for consistency
      cgroup: remove cgroup_enable_task_cg_lists() optimization
      cgroup: pids: use atomic64_t for pids->limit
      selftests: cgroup: Run test_core under interfering stress
      selftests: cgroup: Add task migration tests
      ...
    1b96a41b
cgroup.c 167 KB