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Subject[RFC PATCH 5/5] mm, proc: add NR_RECLAIMABLE to /proc/meminfo
Date
The vmstat NR_RECLAIMABLE counter is a superset of NR_SLAB_RECLAIMABLE and
other non-slab allocations that can be reclaimed via shrinker. Make it visible
also in /proc/meminfo and /sys/...node info.

Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
---
drivers/base/node.c | 2 ++
fs/proc/meminfo.c | 3 ++-
2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/base/node.c b/drivers/base/node.c
index a5e821d09656..b35e3627eab7 100644
--- a/drivers/base/node.c
+++ b/drivers/base/node.c
@@ -118,6 +118,7 @@ static ssize_t node_read_meminfo(struct device *dev,
"Node %d NFS_Unstable: %8lu kB\n"
"Node %d Bounce: %8lu kB\n"
"Node %d WritebackTmp: %8lu kB\n"
+ "Node %d Reclaimable: %8lu kB\n"
"Node %d Slab: %8lu kB\n"
"Node %d SReclaimable: %8lu kB\n"
"Node %d SUnreclaim: %8lu kB\n"
@@ -138,6 +139,7 @@ static ssize_t node_read_meminfo(struct device *dev,
nid, K(node_page_state(pgdat, NR_UNSTABLE_NFS)),
nid, K(sum_zone_node_page_state(nid, NR_BOUNCE)),
nid, K(node_page_state(pgdat, NR_WRITEBACK_TEMP)),
+ nid, K(node_page_state(pgdat, NR_RECLAIMABLE)),
nid, K(node_page_state(pgdat, NR_SLAB_RECLAIMABLE) +
node_page_state(pgdat, NR_SLAB_UNRECLAIMABLE)),
nid, K(node_page_state(pgdat, NR_SLAB_RECLAIMABLE)),
diff --git a/fs/proc/meminfo.c b/fs/proc/meminfo.c
index 2fb04846ed11..6ca0158a9ebd 100644
--- a/fs/proc/meminfo.c
+++ b/fs/proc/meminfo.c
@@ -93,10 +93,11 @@ static int meminfo_proc_show(struct seq_file *m, void *v)
show_val_kb(m, "Mapped: ",
global_node_page_state(NR_FILE_MAPPED));
show_val_kb(m, "Shmem: ", i.sharedram);
+ show_val_kb(m, "Reclaimable: ",
+ global_node_page_state(NR_RECLAIMABLE));
show_val_kb(m, "Slab: ",
global_node_page_state(NR_SLAB_RECLAIMABLE) +
global_node_page_state(NR_SLAB_UNRECLAIMABLE));
-
show_val_kb(m, "SReclaimable: ",
global_node_page_state(NR_SLAB_RECLAIMABLE));
show_val_kb(m, "SUnreclaim: ",
--
2.17.0
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