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mm: polish virtual memory accounting

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* add VM_STACK as alias for VM_GROWSUP/DOWN depending on architecture
* always account VMAs with flag VM_STACK as stack (as it was before)
* cleanup classifying helpers
* update comments and documentation

Signed-off-by: Konstantin Khlebnikov <koct9i@gmail.com>
Tested-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Cc: Cyrill Gorcunov <gorcunov@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Konstantin Khlebnikov
2016-02-02 16:57:46 -08:00
committed by Linus Torvalds
parent d977d56ce5
commit 30bdbb7800
4 changed files with 28 additions and 11 deletions
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Documentation/filesystems/proc.txt
+2 -2
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@@ -240,8 +240,8 @@ Table 1-2: Contents of the status files (as of 4.1)
RssFile size of resident file mappings
RssShmem size of resident shmem memory (includes SysV shm,
mapping of tmpfs and shared anonymous mappings)
VmData size of data, stack, and text segments
VmStk size of data, stack, and text segments
VmData size of private data segments
VmStk size of stack segments
VmExe size of text segment
VmLib size of shared library code
VmPTE size of page table entries