Now, Quicklist can spent several GB memory.
So, if end user can't hou much spent memory, he misunderstand to memory leak happend.
after this patch applied, /proc/meminfo output following.
% cat /proc/meminfo
MemTotal: 7701504 kB
MemFree: 5159040 kB
Buffers: 112960 kB
Cached: 337536 kB
SwapCached: 0 kB
Active: 218944 kB
Inactive: 350848 kB
Active(anon): 120832 kB
Inactive(anon): 0 kB
Active(file): 98112 kB
Inactive(file): 350848 kB
Unevictable: 0 kB
Mlocked: 0 kB
SwapTotal: 2031488 kB
SwapFree: 2031488 kB
Dirty: 320 kB
Writeback: 0 kB
AnonPages: 119488 kB
Mapped: 38528 kB
Slab: 1595712 kB
SReclaimable: 23744 kB
SUnreclaim: 1571968 kB
PageTables: 14336 kB
NFS_Unstable: 0 kB
Bounce: 0 kB
WritebackTmp: 0 kB
CommitLimit: 5882240 kB
Committed_AS: 356672 kB
VmallocTotal: 17592177655808 kB
VmallocUsed: 29056 kB
VmallocChunk: 17592177626304 kB
Quicklists: 283776 kB
HugePages_Total: 0
HugePages_Free: 0
HugePages_Rsvd: 0
HugePages_Surp: 0
Hugepagesize: 262144 kB
Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
---
fs/proc/proc_misc.c | 6 ++++--
include/linux/quicklist.h | 7 +++++++
2 files changed, 11 insertions(+), 2 deletions(-)
Index: b/fs/proc/proc_misc.c
===================================================================
--- a/fs/proc/proc_misc.c
+++ b/fs/proc/proc_misc.c
@@ -202,7 +202,8 @@ static int meminfo_read_proc(char *page,
"Committed_AS: %8lu kB\n"
"VmallocTotal: %8lu kB\n"
"VmallocUsed: %8lu kB\n"
- "VmallocChunk: %8lu kB\n",
+ "VmallocChunk: %8lu kB\n"
+ "Quicklists: %8lu kB\n",
K(i.totalram),
K(i.freeram),
K(i.bufferram),
@@ -242,7 +243,8 @@ static int meminfo_read_proc(char *page,
K(committed),
(unsigned long)VMALLOC_TOTAL >> 10,
vmi.used >> 10,
- vmi.largest_chunk >> 10
+ vmi.largest_chunk >> 10,
+ K(quicklist_total_size())
);
len += hugetlb_report_meminfo(page + len);
Index: b/include/linux/quicklist.h
===================================================================
--- a/include/linux/quicklist.h
+++ b/include/linux/quicklist.h
@@ -80,6 +80,13 @@ void quicklist_trim(int nr, void (*dtor)
unsigned long quicklist_total_size(void);
+#else
+
+static inline unsigned long quicklist_total_size(void)
+{
+ return 0;
+}
+
#endif
#endif /* LINUX_QUICKLIST_H */
--
