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coredump_filter: add description of bit 4

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There is no description of bit 4 of coredump_filter in the
documentation.  This patch adds it.

Signed-off-by: Hidehiro Kawai <hidehiro.kawai.ez@hitachi.com>
Cc: Roland McGrath <roland@redhat.com>
Cc: Mel Gorman <mel@csn.ul.ie>
Acked-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Hidehiro Kawai 2008-09-13 02:33:10 -07:00 committed by Linus Torvalds
parent 024994310e
commit b261dfea48
1 changed files with 2 additions and 0 deletions
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Documentation/filesystems/proc.txt
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@ -2413,6 +2413,8 @@ The following 4 memory types are supported:
- (bit 1) anonymous shared memory - (bit 1) anonymous shared memory
- (bit 2) file-backed private memory - (bit 2) file-backed private memory
- (bit 3) file-backed shared memory - (bit 3) file-backed shared memory
- (bit 4) ELF header pages in file-backed private memory areas (it is
effective only if the bit 2 is cleared)
Note that MMIO pages such as frame buffer are never dumped and vDSO pages Note that MMIO pages such as frame buffer are never dumped and vDSO pages
are always dumped regardless of the bitmask status. are always dumped regardless of the bitmask status.