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authorLinus Torvalds <torvalds@linux-foundation.org>2011-10-26 18:17:32 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2011-10-26 18:17:32 +0400
commit3cfef9524677a4ecb392d6fbffe6ebce6302f1d4 (patch)
tree88647d9dc50d634dee9cfeb7f354d620977a2f33 /kernel/cgroup.c
parent982653009b883ef1529089e3e6f1ae2fee41cbe2 (diff)
parent68cc3990a545dc0da221b4844dd8b9c06623a6c5 (diff)
downloadlinux-3cfef9524677a4ecb392d6fbffe6ebce6302f1d4.tar.xz
Merge branch 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
* 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (27 commits) rtmutex: Add missing rcu_read_unlock() in debug_rt_mutex_print_deadlock() lockdep: Comment all warnings lib: atomic64: Change the type of local lock to raw_spinlock_t locking, lib/atomic64: Annotate atomic64_lock::lock as raw locking, x86, iommu: Annotate qi->q_lock as raw locking, x86, iommu: Annotate irq_2_ir_lock as raw locking, x86, iommu: Annotate iommu->register_lock as raw locking, dma, ipu: Annotate bank_lock as raw locking, ARM: Annotate low level hw locks as raw locking, drivers/dca: Annotate dca_lock as raw locking, powerpc: Annotate uic->lock as raw locking, x86: mce: Annotate cmci_discover_lock as raw locking, ACPI: Annotate c3_lock as raw locking, oprofile: Annotate oprofilefs lock as raw locking, video: Annotate vga console lock as raw locking, latencytop: Annotate latency_lock as raw locking, timer_stats: Annotate table_lock as raw locking, rwsem: Annotate inner lock as raw locking, semaphores: Annotate inner lock as raw locking, sched: Annotate thread_group_cputimer as raw ... Fix up conflicts in kernel/posix-cpu-timers.c manually: making cputimer->cputime a raw lock conflicted with the ABBA fix in commit bcd5cff7216f ("cputimer: Cure lock inversion").
Diffstat (limited to 'kernel/cgroup.c')
-rw-r--r--kernel/cgroup.c18
1 files changed, 9 insertions, 9 deletions
diff --git a/kernel/cgroup.c b/kernel/cgroup.c
index 1d2b6ceea95d..453100a4159d 100644
--- a/kernel/cgroup.c
+++ b/kernel/cgroup.c
@@ -265,7 +265,7 @@ list_for_each_entry(_root, &roots, root_list)
/* the list of cgroups eligible for automatic release. Protected by
* release_list_lock */
static LIST_HEAD(release_list);
-static DEFINE_SPINLOCK(release_list_lock);
+static DEFINE_RAW_SPINLOCK(release_list_lock);
static void cgroup_release_agent(struct work_struct *work);
static DECLARE_WORK(release_agent_work, cgroup_release_agent);
static void check_for_release(struct cgroup *cgrp);
@@ -4014,11 +4014,11 @@ again:
finish_wait(&cgroup_rmdir_waitq, &wait);
clear_bit(CGRP_WAIT_ON_RMDIR, &cgrp->flags);
- spin_lock(&release_list_lock);
+ raw_spin_lock(&release_list_lock);
set_bit(CGRP_REMOVED, &cgrp->flags);
if (!list_empty(&cgrp->release_list))
list_del_init(&cgrp->release_list);
- spin_unlock(&release_list_lock);
+ raw_spin_unlock(&release_list_lock);
cgroup_lock_hierarchy(cgrp->root);
/* delete this cgroup from parent->children */
@@ -4671,13 +4671,13 @@ static void check_for_release(struct cgroup *cgrp)
* already queued for a userspace notification, queue
* it now */
int need_schedule_work = 0;
- spin_lock(&release_list_lock);
+ raw_spin_lock(&release_list_lock);
if (!cgroup_is_removed(cgrp) &&
list_empty(&cgrp->release_list)) {
list_add(&cgrp->release_list, &release_list);
need_schedule_work = 1;
}
- spin_unlock(&release_list_lock);
+ raw_spin_unlock(&release_list_lock);
if (need_schedule_work)
schedule_work(&release_agent_work);
}
@@ -4729,7 +4729,7 @@ static void cgroup_release_agent(struct work_struct *work)
{
BUG_ON(work != &release_agent_work);
mutex_lock(&cgroup_mutex);
- spin_lock(&release_list_lock);
+ raw_spin_lock(&release_list_lock);
while (!list_empty(&release_list)) {
char *argv[3], *envp[3];
int i;
@@ -4738,7 +4738,7 @@ static void cgroup_release_agent(struct work_struct *work)
struct cgroup,
release_list);
list_del_init(&cgrp->release_list);
- spin_unlock(&release_list_lock);
+ raw_spin_unlock(&release_list_lock);
pathbuf = kmalloc(PAGE_SIZE, GFP_KERNEL);
if (!pathbuf)
goto continue_free;
@@ -4768,9 +4768,9 @@ static void cgroup_release_agent(struct work_struct *work)
continue_free:
kfree(pathbuf);
kfree(agentbuf);
- spin_lock(&release_list_lock);
+ raw_spin_lock(&release_list_lock);
}
- spin_unlock(&release_list_lock);
+ raw_spin_unlock(&release_list_lock);
mutex_unlock(&cgroup_mutex);
}