| commit | 8cc3b39221b0ecbd83a338948a8396df097fc656 | |
| author | Hugh Dickins <hugh@veritas.com> | |
| Tue, 6 Jan 2009 22:40:06 +0000 (6 14:40 -0800) | ||
| committer | Linus Torvalds <torvalds@linux-foundation.org> | |
| Tue, 6 Jan 2009 23:59:07 +0000 (6 15:59 -0800) | ||
| tree | 8a8617590f6bc9842c28a0fc4e5e5fbc93e95780 | treesnapshot (tar.gz zip) |
| parent | 79f4b7bf393e67bbffec807cc68caaefc72b82ee | commitdiff |
badpage: keep any bad page out of circulation
Until now the bad_page() checkers have special-cased PageReserved, keeping
those pages out of circulation thereafter. Now extend the special case to
all: we want to keep ANY page with bad state out of circulation - the
"free" page may well be in use by something.
Leave the bad state of those pages untouched, for examination by
debuggers; except for PageBuddy - leaving that set would risk bringing the
page back.
Signed-off-by: Hugh Dickins <hugh@veritas.com>
Cc: Nick Piggin <nickpiggin@yahoo.com.au>
Cc: Christoph Lameter <cl@linux-foundation.org>
Cc: Mel Gorman <mel@csn.ul.ie>
Cc: Rik van Riel <riel@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Until now the bad_page() checkers have special-cased PageReserved, keeping
those pages out of circulation thereafter. Now extend the special case to
all: we want to keep ANY page with bad state out of circulation - the
"free" page may well be in use by something.
Leave the bad state of those pages untouched, for examination by
debuggers; except for PageBuddy - leaving that set would risk bringing the
page back.
Signed-off-by: Hugh Dickins <hugh@veritas.com>
Cc: Nick Piggin <nickpiggin@yahoo.com.au>
Cc: Christoph Lameter <cl@linux-foundation.org>
Cc: Mel Gorman <mel@csn.ul.ie>
Cc: Rik van Riel <riel@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| mm/page_alloc.c | diffblobblamehistory |