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authorHugh Dickins <hughd@google.com>2015-11-05 18:50:37 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2015-11-05 19:34:48 -0800
commita5be35632cf3048d3922e2e2fb05a4c6f0889ff0 (patch)
tree89b7974c9cce0cb8ecae47441c7be534e5b3ab53
parenttmpfs: avoid a little creat and stat slowdown (diff)
downloadlinux-dev-a5be35632cf3048d3922e2e2fb05a4c6f0889ff0.tar.xz
linux-dev-a5be35632cf3048d3922e2e2fb05a4c6f0889ff0.zip
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@google.com> Acked-by: Vlastimil Babka <vbabka@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--Documentation/filesystems/proc.txt13
1 files changed, 5 insertions, 8 deletions
diff --git a/Documentation/filesystems/proc.txt b/Documentation/filesystems/proc.txt
index 9781b977edcb..1e4a6cc1b6ea 100644
--- a/Documentation/filesystems/proc.txt
+++ b/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 options. The following is from a
> cat /proc/meminfo
-The "Locked" indicates whether the mapping is locked in memory or not.
-
-
MemTotal: 16344972 kB
MemFree: 13634064 kB
MemAvailable: 14836172 kB