The patch titled
mm: expose BDI statistics in sysfs.
has been removed from the -mm tree. Its filename was
mm-expose-bdi-statistics-in-sysfs.patch
This patch was dropped because an updated version will be merged
------------------------------------------------------
Subject: mm: expose BDI statistics in sysfs.
From: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
Expose the per BDI stats in /sys/block/<dev>/queue/*
Signed-off-by: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
block/ll_rw_blk.c | 29 +++++++++++++++++++++++++++++
1 file changed, 29 insertions(+)
diff -puN block/ll_rw_blk.c~mm-expose-bdi-statistics-in-sysfs block/ll_rw_blk.c
--- a/block/ll_rw_blk.c~mm-expose-bdi-statistics-in-sysfs
+++ a/block/ll_rw_blk.c
@@ -3982,6 +3982,23 @@ static ssize_t queue_max_hw_sectors_show
return queue_var_show(max_hw_sectors_kb, (page));
}
+static ssize_t queue_nr_reclaimable_show(struct request_queue *q, char *page)
+{
+ unsigned long long nr_reclaimable =
+ bdi_stat(&q->backing_dev_info, BDI_RECLAIMABLE);
+
+ return sprintf(page, "%llu\n",
+ nr_reclaimable >> (PAGE_CACHE_SHIFT - 10));
+}
+
+static ssize_t queue_nr_writeback_show(struct request_queue *q, char *page)
+{
+ unsigned long long nr_writeback =
+ bdi_stat(&q->backing_dev_info, BDI_WRITEBACK);
+
+ return sprintf(page, "%llu\n",
+ nr_writeback >> (PAGE_CACHE_SHIFT - 10));
+}
static struct queue_sysfs_entry queue_requests_entry = {
.attr = {.name = "nr_requests", .mode = S_IRUGO | S_IWUSR },
@@ -4006,6 +4023,16 @@ static struct queue_sysfs_entry queue_ma
.show = queue_max_hw_sectors_show,
};
+static struct queue_sysfs_entry queue_reclaimable_entry = {
+ .attr = {.name = "reclaimable_kb", .mode = S_IRUGO },
+ .show = queue_nr_reclaimable_show,
+};
+
+static struct queue_sysfs_entry queue_writeback_entry = {
+ .attr = {.name = "writeback_kb", .mode = S_IRUGO },
+ .show = queue_nr_writeback_show,
+};
+
static struct queue_sysfs_entry queue_iosched_entry = {
.attr = {.name = "scheduler", .mode = S_IRUGO | S_IWUSR },
.show = elv_iosched_show,
@@ -4017,6 +4044,8 @@ static struct attribute *default_attrs[]
&queue_ra_entry.attr,
&queue_max_hw_sectors_entry.attr,
&queue_max_sectors_entry.attr,
+ &queue_reclaimable_entry.attr,
+ &queue_writeback_entry.attr,
&queue_iosched_entry.attr,
NULL,
};
_
Patches currently in -mm which might be from a.p.zijlstra@xxxxxxxxx are
radix-tree-use-indirect-bit.patch
mm-expose-bdi-statistics-in-sysfs.patch
lib-floating-proportions.patch
lib-floating-proportions-_single.patch
lib-floating-proportions-_single-tidy.patch
mm-per-device-dirty-threshold.patch
mm-dirty-balancing-for-tasks.patch
debug-sysfs-files-for-the-current-ratio-size-total.patch
intel-iommu-dmar-detection-and-parsing-logic.patch
intel-iommu-pci-generic-helper-function.patch
intel-iommu-clflush_cache_range-now-takes-size-param.patch
intel-iommu-iova-allocation-and-management-routines.patch
intel-iommu-intel-iommu-driver.patch
intel-iommu-avoid-memory-allocation-failures-in-dma-map-api-calls.patch
intel-iommu-intel-iommu-cmdline-option-forcedac.patch
intel-iommu-dmar-fault-handling-support.patch
intel-iommu-iommu-gfx-workaround.patch
intel-iommu-iommu-floppy-workaround.patch
task-containersv11-add-procfs-interface-containers-bdi-init-hooks.patch
workqueue-debug-flushing-deadlocks-with-lockdep.patch
workqueue-debug-work-related-deadlocks-with-lockdep.patch
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