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authorHugh Dickins <hughd@google.com>2015-11-05 21:50:37 -0500
committerLinus Torvalds <torvalds@linux-foundation.org>2015-11-05 22:34:48 -0500
commita5be35632cf3048d3922e2e2fb05a4c6f0889ff0 (patch)
tree89b7974c9cce0cb8ecae47441c7be534e5b3ab53 /Documentation/filesystems
parentd0424c429f8e0555a337d71e0a13f2289c636ec9 (diff)
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>
Diffstat (limited to 'Documentation/filesystems')
-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
433SwapPss: 0 kB 433SwapPss: 0 kB
434KernelPageSize: 4 kB 434KernelPageSize: 4 kB
435MMUPageSize: 4 kB 435MMUPageSize: 4 kB
436Locked: 374 kB 436Locked: 0 kB
437VmFlags: rd ex mr mw me de 437VmFlags: rd ex mr mw me dw
438 438
439the first of these lines shows the same information as is displayed for the 439the first of these lines shows the same information as is displayed for the
440mapping in /proc/PID/maps. The remaining lines show the size of the mapping 440mapping in /proc/PID/maps. The remaining lines show the size of the mapping
@@ -454,13 +454,13 @@ accessed.
454"Anonymous" shows the amount of memory that does not belong to any file. Even 454"Anonymous" shows the amount of memory that does not belong to any file. Even
455a mapping associated with a file may contain anonymous pages: when MAP_PRIVATE 455a mapping associated with a file may contain anonymous pages: when MAP_PRIVATE
456and a page is modified, the file page is replaced by a private anonymous copy. 456and a page is modified, the file page is replaced by a private anonymous copy.
457"Swap" shows how much would-be-anonymous memory is also used, but out on
458swap.
459"SwapPss" shows proportional swap share of this mapping.
460"AnonHugePages" shows the ammount of memory backed by transparent hugepage. 457"AnonHugePages" shows the ammount of memory backed by transparent hugepage.
461"Shared_Hugetlb" and "Private_Hugetlb" show the ammounts of memory backed by 458"Shared_Hugetlb" and "Private_Hugetlb" show the ammounts of memory backed by
462hugetlbfs page which is *not* counted in "RSS" or "PSS" field for historical 459hugetlbfs page which is *not* counted in "RSS" or "PSS" field for historical
463reasons. And these are not included in {Shared,Private}_{Clean,Dirty} field. 460reasons. And these are not included in {Shared,Private}_{Clean,Dirty} field.
461"Swap" shows how much would-be-anonymous memory is also used, but out on swap.
462"SwapPss" shows proportional swap share of this mapping.
463"Locked" indicates whether the mapping is locked in memory or not.
464 464
465"VmFlags" field deserves a separate description. This member represents the kernel 465"VmFlags" field deserves a separate description. This member represents the kernel
466flags associated with the particular virtual memory area in two letter encoded 466flags 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
824 824
825> cat /proc/meminfo 825> cat /proc/meminfo
826 826
827The "Locked" indicates whether the mapping is locked in memory or not.
828
829
830MemTotal: 16344972 kB 827MemTotal: 16344972 kB
831MemFree: 13634064 kB 828MemFree: 13634064 kB
832MemAvailable: 14836172 kB 829MemAvailable: 14836172 kB