linux/Documentation/filesystems
Vlastimil Babka 61f94e18de mm, proc: add KReclaimable to /proc/meminfo
The vmstat NR_KERNEL_MISC_RECLAIMABLE counter is for kernel non-slab
allocations that can be reclaimed via shrinker.  In /proc/meminfo, we can
show the sum of all reclaimable kernel allocations (including slab) as
"KReclaimable".  Add the same counter also to per-node meminfo under /sys

With this counter, users will have more complete information about kernel
memory usage.  Non-slab reclaimable pages (currently just the ION
allocator) will not be missing from /proc/meminfo, making users wonder
where part of their memory went.  More precisely, they already appear in
MemAvailable, but without the new counter, it's not obvious why the value
in MemAvailable doesn't fully correspond with the sum of other counters
participating in it.

Link: http://lkml.kernel.org/r/20180731090649.16028-6-vbabka@suse.cz
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
Acked-by: Roman Gushchin <guro@fb.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Laura Abbott <labbott@redhat.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Sumit Semwal <sumit.semwal@linaro.org>
Cc: Vijayanand Jitta <vjitta@codeaurora.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-10-26 16:26:32 -07:00
..
caching fscache: Pass object size in rather than calling back for it 2018-04-06 14:05:14 +01:00
cifs smb3: update readme to correct information about /proc/fs/cifs/Stats 2018-08-07 14:20:23 -05:00
configfs fs: configfs: don't return anything from drop_link 2016-12-01 10:50:49 +01:00
ext4 docs: promote the ext4 data structures book to top level 2018-10-05 19:20:08 -04:00
nfs Drop all 00-INDEX files from Documentation/ 2018-09-09 15:08:58 -06:00
pohmelfs Documentation: fix common spelling mistakes 2016-04-28 07:51:59 -06:00
9p.txt
adfs.txt
affs.txt
afs.txt afs: Implement @sys substitution handling 2018-04-09 21:12:31 +01:00
autofs-mount-control.txt autofs: use autofs instead of autofs4 in documentation 2018-06-07 17:34:39 -07:00
autofs.txt autofs: use autofs instead of autofs4 in documentation 2018-06-07 17:34:39 -07:00
automount-support.txt autofs: use autofs instead of autofs4 in documentation 2018-06-07 17:34:39 -07:00
befs.txt
bfs.txt Tigran has moved 2017-05-12 15:57:15 -07:00
btrfs.txt
ceph.txt ceph: update description of some mount options 2018-06-04 20:46:02 +02:00
coda.txt
conf.py docs-rst: convert filesystems book to ReST 2017-05-16 08:44:08 -03:00
cramfs.txt cramfs: rehabilitate it 2017-10-15 00:47:23 -04:00
dax.txt docs: fix some broken documentation references 2018-09-20 11:09:53 -06:00
debugfs.txt
devpts.txt devpts: Make each mount of devpts an independent filesystem. 2016-06-05 10:36:01 -07:00
directory-locking vfs: remove unused i_op->rename 2016-09-27 11:03:58 +02:00
dlmfs.txt
dnotify.txt Documentation: fix selftests related file refs 2017-10-19 12:58:21 -06:00
ecryptfs.txt
efivarfs.txt
exofs.txt
ext2.txt docs: fix some broken documentation references 2018-09-20 11:09:53 -06:00
ext3.txt
f2fs.txt f2fs: checkpoint disabling 2018-10-16 09:36:39 -07:00
fiemap.txt
files.txt
fscrypt.rst crypto: speck - remove Speck 2018-09-04 11:35:03 +08:00
fuse-io.txt fuse: add writeback documentation 2018-03-20 17:11:45 +01:00
fuse.txt
gfs2-glocks.txt GFS2: Minor improvements to comments and documentation 2018-04-12 10:07:51 -07:00
gfs2-uevents.txt
gfs2.txt
hfs.txt
hfsplus.txt
hpfs.txt
index.rst docs: create filesystem internal section 2018-07-29 16:14:02 -04:00
inotify.txt
isofs.txt
jfs.txt
Locking overlayfs update for 4.19 2018-08-21 18:19:09 -07:00
locks.txt docs: fix locations of several documents that got moved 2016-10-24 08:12:35 -02:00
mandatory-locking.txt
nilfs2.txt MAINTAINERS, nilfs2: change project home URLs 2018-01-13 10:42:48 -08:00
ntfs.txt
ocfs2-online-filecheck.txt Doc: ocfs: Fix typo in filesystems/ocfs2-online-filecheck.txt 2016-07-01 16:17:15 -06:00
ocfs2.txt
omfs.txt
orangefs.txt Orangefs: documentation updates 2018-04-04 14:05:48 -04:00
overlayfs.txt ovl: Provide a mount option metacopy=on/off for metadata copyup 2018-07-20 09:56:06 +02:00
path-lookup.md autofs: use autofs instead of autofs4 in documentation 2018-06-07 17:34:39 -07:00
path-lookup.txt
porting Document d_splice_alias() calling conventions for ->lookup() users. 2018-10-10 16:52:37 -04:00
proc.txt mm, proc: add KReclaimable to /proc/meminfo 2018-10-26 16:26:32 -07:00
qnx6.txt Documentation: fix common spelling mistakes 2016-04-28 07:51:59 -06:00
quota.txt scripts/spelling.txt: add "an user" pattern and fix typo instances 2017-02-27 18:43:46 -08:00
ramfs-rootfs-initramfs.txt initramfs: move gen_initramfs_list.sh from scripts/ to usr/ 2018-08-22 23:21:44 +09:00
relay.txt Documentation : Update relay function types 2018-07-10 15:11:00 -06:00
romfs.txt
seq_file.txt fs/seq_file.c: simplify seq_file iteration code and interface 2018-08-17 16:20:28 -07:00
sharedsubtree.txt
spufs.txt
squashfs.txt
sysfs-pci.txt PCI: Add pci_mmap_resource_range() and use it for ARM64 2017-04-20 08:47:47 -05:00
sysfs-tagging.txt
sysfs.txt kallsyms: remove print_symbol() function 2018-01-16 16:59:55 +01:00
sysv-fs.txt
tmpfs.txt docs/vm: move numa_memory_policy.rst to Documentation/admin-guide/mm 2018-05-08 09:31:31 -06:00
ubifs.txt
udf.txt udf: Remove never implemented mount options 2018-02-27 10:25:33 +01:00
ufs.txt
vfat.txt Documentation/filesystems/vfat.txt: fix a remark that implies UCS2 2017-12-21 13:39:28 -07:00
vfs.txt vfs: add the fadvise() file operation 2018-08-30 17:08:35 +02:00
xfs-delayed-logging-design.txt
xfs-self-describing-metadata.txt
xfs.txt xfs: remove deprecated barrier/nobarrier mount 2018-07-26 10:15:17 -07:00