The patch titled
Subject: Documentation/filesystems/proc.txt: a little tidying
has been added to the -mm tree. Its filename is
mm-documentation-a-little-tidying-in-proctxt.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-documentation-a-little-tidying-in-proctxt.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-documentation-a-little-tidying-in-proctxt.patch
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From: Hugh Dickins <hughd@xxxxxxxxxx>
Subject: Documentation/filesystems/proc.txt: a little tidying
There's an odd line about "Locked" at the head of the description of
/proc/meminfo: it seems to have strayed from /proc/PID/smaps, so lead it
back there. Move "Swap" and "SwapPss" descriptions down above it, to
match the order in the file (though "PageSize"s still undescribed).
The example of "Locked: 374 kB" (the same as Pss, neither Rss nor Size) is
so unlikely as to be misleading: just make it 0, this is /bin/bash text;
which would be "dw" (disabled write) not "de" (do not expand).
Signed-off-by: Hugh Dickins <hughd@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
Documentation/filesystems/proc.txt | 13 +++++--------
1 file changed, 5 insertions(+), 8 deletions(-)
diff -puN Documentation/filesystems/proc.txt~mm-documentation-a-little-tidying-in-proctxt Documentation/filesystems/proc.txt
--- a/Documentation/filesystems/proc.txt~mm-documentation-a-little-tidying-in-proctxt
+++ a/Documentation/filesystems/proc.txt
@@ -433,8 +433,8 @@ Swap: 0 kB
SwapPss: 0 kB
KernelPageSize: 4 kB
MMUPageSize: 4 kB
-Locked: 374 kB
-VmFlags: rd ex mr mw me de
+Locked: 0 kB
+VmFlags: rd ex mr mw me dw
the first of these lines shows the same information as is displayed for the
mapping in /proc/PID/maps. The remaining lines show the size of the mapping
@@ -454,13 +454,13 @@ accessed.
"Anonymous" shows the amount of memory that does not belong to any file. Even
a mapping associated with a file may contain anonymous pages: when MAP_PRIVATE
and a page is modified, the file page is replaced by a private anonymous copy.
-"Swap" shows how much would-be-anonymous memory is also used, but out on
-swap.
-"SwapPss" shows proportional swap share of this mapping.
"AnonHugePages" shows the ammount of memory backed by transparent hugepage.
"Shared_Hugetlb" and "Private_Hugetlb" show the ammounts of memory backed by
hugetlbfs page which is *not* counted in "RSS" or "PSS" field for historical
reasons. And these are not included in {Shared,Private}_{Clean,Dirty} field.
+"Swap" shows how much would-be-anonymous memory is also used, but out on swap.
+"SwapPss" shows proportional swap share of this mapping.
+"Locked" indicates whether the mapping is locked in memory or not.
"VmFlags" field deserves a separate description. This member represents the kernel
flags associated with the particular virtual memory area in two letter encoded
@@ -824,9 +824,6 @@ varies by architecture and compile optio
> cat /proc/meminfo
-The "Locked" indicates whether the mapping is locked in memory or not.
-
-
MemTotal: 16344972 kB
MemFree: 13634064 kB
MemAvailable: 14836172 kB
_
Patches currently in -mm which might be from hughd@xxxxxxxxxx are
memcg-simplify-and-inline-__mem_cgroup_from_kmem-fix-2.patch
mm-documentation-undoc-non-linear-vmas.patch
mm-rmap-use-pte-lock-not-mmap_sem-to-set-pagemlocked.patch
mm-page-migration-fix-pagemlocked-on-migrated-pages.patch
mm-rename-mem_cgroup_migrate-to-mem_cgroup_replace_page.patch
mm-correct-a-couple-of-page-migration-comments.patch
mm-page-migration-use-the-put_new_page-whenever-necessary.patch
mm-page-migration-trylock-newpage-at-same-level-as-oldpage.patch
mm-page-migration-remove_migration_ptes-at-lockunlock-level.patch
mm-simplify-page-migrations-anon_vma-comment-and-flow.patch
mm-page-migration-use-migration-entry-for-swapcache-too.patch
mm-page-migration-avoid-touching-newpage-until-no-going-back.patch
mm-migrate-dirty-page-without-clear_page_dirty_for_io-etc.patch
tmpfs-avoid-a-little-creat-and-stat-slowdown.patch
mm-documentation-a-little-tidying-in-proctxt.patch
mm-use-unsigned-int-for-page-order-fix-2.patch
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