diff options
author | Tejun Heo <tj@kernel.org> | 2009-06-24 08:13:48 +0200 |
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committer | Tejun Heo <tj@kernel.org> | 2009-06-24 08:13:48 +0200 |
commit | 245b2e70eabd797932adb263a65da0bab3711753 (patch) | |
tree | 30f0b790dadd2b70bf06e534abcf66a76e97b05a /block | |
parent | percpu: use DEFINE_PER_CPU_SHARED_ALIGNED() (diff) | |
download | linux-245b2e70eabd797932adb263a65da0bab3711753.tar.xz linux-245b2e70eabd797932adb263a65da0bab3711753.zip |
percpu: clean up percpu variable definitions
Percpu variable definition is about to be updated such that all percpu
symbols including the static ones must be unique. Update percpu
variable definitions accordingly.
* as,cfq: rename ioc_count uniquely
* cpufreq: rename cpu_dbs_info uniquely
* xen: move nesting_count out of xen_evtchn_do_upcall() and rename it
* mm: move ratelimits out of balance_dirty_pages_ratelimited_nr() and
rename it
* ipv4,6: rename cookie_scratch uniquely
* x86 perf_counter: rename prev_left to pmc_prev_left, irq_entry to
pmc_irq_entry and nmi_entry to pmc_nmi_entry
* perf_counter: rename disable_count to perf_disable_count
* ftrace: rename test_event_disable to ftrace_test_event_disable
* kmemleak: rename test_pointer to kmemleak_test_pointer
* mce: rename next_interval to mce_next_interval
[ Impact: percpu usage cleanups, no duplicate static percpu var names ]
Signed-off-by: Tejun Heo <tj@kernel.org>
Reviewed-by: Christoph Lameter <cl@linux-foundation.org>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Jens Axboe <jens.axboe@oracle.com>
Cc: Dave Jones <davej@redhat.com>
Cc: Jeremy Fitzhardinge <jeremy@xensource.com>
Cc: linux-mm <linux-mm@kvack.org>
Cc: David S. Miller <davem@davemloft.net>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Steven Rostedt <srostedt@redhat.com>
Cc: Li Zefan <lizf@cn.fujitsu.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Andi Kleen <andi@firstfloor.org>
Diffstat (limited to 'block')
-rw-r--r-- | block/as-iosched.c | 10 | ||||
-rw-r--r-- | block/cfq-iosched.c | 10 |
2 files changed, 10 insertions, 10 deletions
diff --git a/block/as-iosched.c b/block/as-iosched.c index 7a12cf6ee1d3..ce8ba57c6557 100644 --- a/block/as-iosched.c +++ b/block/as-iosched.c @@ -146,7 +146,7 @@ enum arq_state { #define RQ_STATE(rq) ((enum arq_state)(rq)->elevator_private2) #define RQ_SET_STATE(rq, state) ((rq)->elevator_private2 = (void *) state) -static DEFINE_PER_CPU(unsigned long, ioc_count); +static DEFINE_PER_CPU(unsigned long, as_ioc_count); static struct completion *ioc_gone; static DEFINE_SPINLOCK(ioc_gone_lock); @@ -161,7 +161,7 @@ static void as_antic_stop(struct as_data *ad); static void free_as_io_context(struct as_io_context *aic) { kfree(aic); - elv_ioc_count_dec(ioc_count); + elv_ioc_count_dec(as_ioc_count); if (ioc_gone) { /* * AS scheduler is exiting, grab exit lock and check @@ -169,7 +169,7 @@ static void free_as_io_context(struct as_io_context *aic) * complete ioc_gone and set it back to NULL. */ spin_lock(&ioc_gone_lock); - if (ioc_gone && !elv_ioc_count_read(ioc_count)) { + if (ioc_gone && !elv_ioc_count_read(as_ioc_count)) { complete(ioc_gone); ioc_gone = NULL; } @@ -211,7 +211,7 @@ static struct as_io_context *alloc_as_io_context(void) ret->seek_total = 0; ret->seek_samples = 0; ret->seek_mean = 0; - elv_ioc_count_inc(ioc_count); + elv_ioc_count_inc(as_ioc_count); } return ret; @@ -1507,7 +1507,7 @@ static void __exit as_exit(void) ioc_gone = &all_gone; /* ioc_gone's update must be visible before reading ioc_count */ smp_wmb(); - if (elv_ioc_count_read(ioc_count)) + if (elv_ioc_count_read(as_ioc_count)) wait_for_completion(&all_gone); synchronize_rcu(); } diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c index 833ec18eaa63..0f1cc7d3855e 100644 --- a/block/cfq-iosched.c +++ b/block/cfq-iosched.c @@ -48,7 +48,7 @@ static int cfq_slice_idle = HZ / 125; static struct kmem_cache *cfq_pool; static struct kmem_cache *cfq_ioc_pool; -static DEFINE_PER_CPU(unsigned long, ioc_count); +static DEFINE_PER_CPU(unsigned long, cfq_ioc_count); static struct completion *ioc_gone; static DEFINE_SPINLOCK(ioc_gone_lock); @@ -1422,7 +1422,7 @@ static void cfq_cic_free_rcu(struct rcu_head *head) cic = container_of(head, struct cfq_io_context, rcu_head); kmem_cache_free(cfq_ioc_pool, cic); - elv_ioc_count_dec(ioc_count); + elv_ioc_count_dec(cfq_ioc_count); if (ioc_gone) { /* @@ -1431,7 +1431,7 @@ static void cfq_cic_free_rcu(struct rcu_head *head) * complete ioc_gone and set it back to NULL */ spin_lock(&ioc_gone_lock); - if (ioc_gone && !elv_ioc_count_read(ioc_count)) { + if (ioc_gone && !elv_ioc_count_read(cfq_ioc_count)) { complete(ioc_gone); ioc_gone = NULL; } @@ -1557,7 +1557,7 @@ cfq_alloc_io_context(struct cfq_data *cfqd, gfp_t gfp_mask) INIT_HLIST_NODE(&cic->cic_list); cic->dtor = cfq_free_io_context; cic->exit = cfq_exit_io_context; - elv_ioc_count_inc(ioc_count); + elv_ioc_count_inc(cfq_ioc_count); } return cic; @@ -2658,7 +2658,7 @@ static void __exit cfq_exit(void) * this also protects us from entering cfq_slab_kill() with * pending RCU callbacks */ - if (elv_ioc_count_read(ioc_count)) + if (elv_ioc_count_read(cfq_ioc_count)) wait_for_completion(&all_gone); cfq_slab_kill(); } |