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f92310c187
In the current code, the value of fallback_migratetype that is printed using the mm_page_alloc_extfrag tracepoint, is the value of the migratetype *after* it has been set to the preferred migratetype (if the ownership was changed). Obviously that wouldn't have been the original intent. (We already have a separate 'change_ownership' field to tell whether the ownership of the pageblock was changed from the fallback_migratetype to the preferred type.) The intent of the fallback_migratetype field is to show the migratetype from which we borrowed pages in order to satisfy the allocation request. So fix the code to print that value correctly. Signed-off-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com> Cc: Mel Gorman <mel@csn.ul.ie> Cc: Minchan Kim <minchan@kernel.org> Cc: Cody P Schafer <cody@linux.vnet.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>