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authorTejun Heo <tj@kernel.org>2009-08-14 01:41:02 -0400
committerTejun Heo <tj@kernel.org>2009-08-14 01:45:31 -0400
commit384be2b18a5f9475eab9ca2bdfa95cc1a04ef59c (patch)
tree04c93f391a1b65c8bf8d7ba8643c07d26c26590a /mm/backing-dev.c
parenta76761b621bcd8336065c4fe3a74f046858bc34c (diff)
parent142d44b0dd6741a64a7bdbe029110e7c1dcf1d23 (diff)
Merge branch 'percpu-for-linus' into percpu-for-next
Conflicts: arch/sparc/kernel/smp_64.c arch/x86/kernel/cpu/perf_counter.c arch/x86/kernel/setup_percpu.c drivers/cpufreq/cpufreq_ondemand.c mm/percpu.c Conflicts in core and arch percpu codes are mostly from commit ed78e1e078dd44249f88b1dd8c76dafb39567161 which substituted many num_possible_cpus() with nr_cpu_ids. As for-next branch has moved all the first chunk allocators into mm/percpu.c, the changes are moved from arch code to mm/percpu.c. Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'mm/backing-dev.c')
-rw-r--r--mm/backing-dev.c7
1 files changed, 3 insertions, 4 deletions
diff --git a/mm/backing-dev.c b/mm/backing-dev.c
index 493b468a5035..c86edd244294 100644
--- a/mm/backing-dev.c
+++ b/mm/backing-dev.c
@@ -283,7 +283,6 @@ static wait_queue_head_t congestion_wqh[2] = {
283 __WAIT_QUEUE_HEAD_INITIALIZER(congestion_wqh[1]) 283 __WAIT_QUEUE_HEAD_INITIALIZER(congestion_wqh[1])
284 }; 284 };
285 285
286
287void clear_bdi_congested(struct backing_dev_info *bdi, int sync) 286void clear_bdi_congested(struct backing_dev_info *bdi, int sync)
288{ 287{
289 enum bdi_state bit; 288 enum bdi_state bit;
@@ -308,18 +307,18 @@ EXPORT_SYMBOL(set_bdi_congested);
308 307
309/** 308/**
310 * congestion_wait - wait for a backing_dev to become uncongested 309 * congestion_wait - wait for a backing_dev to become uncongested
311 * @rw: READ or WRITE 310 * @sync: SYNC or ASYNC IO
312 * @timeout: timeout in jiffies 311 * @timeout: timeout in jiffies
313 * 312 *
314 * Waits for up to @timeout jiffies for a backing_dev (any backing_dev) to exit 313 * Waits for up to @timeout jiffies for a backing_dev (any backing_dev) to exit
315 * write congestion. If no backing_devs are congested then just wait for the 314 * write congestion. If no backing_devs are congested then just wait for the
316 * next write to be completed. 315 * next write to be completed.
317 */ 316 */
318long congestion_wait(int rw, long timeout) 317long congestion_wait(int sync, long timeout)
319{ 318{
320 long ret; 319 long ret;
321 DEFINE_WAIT(wait); 320 DEFINE_WAIT(wait);
322 wait_queue_head_t *wqh = &congestion_wqh[rw]; 321 wait_queue_head_t *wqh = &congestion_wqh[sync];
323 322
324 prepare_to_wait(wqh, &wait, TASK_UNINTERRUPTIBLE); 323 prepare_to_wait(wqh, &wait, TASK_UNINTERRUPTIBLE);
325 ret = io_schedule_timeout(timeout); 324 ret = io_schedule_timeout(timeout);