The patch titled Subject: vmscan: fix increasing nr_isolated incurred by putback unevictable pages has been removed from the -mm tree. Its filename was vmscan-fix-increasing-nr_isolated-incurred-by-putback-unevictable-pages.patch
This patch was dropped because it was merged into mainline or a subsystem tree ------------------------------------------------------ From: Jaewon Kim <jaewon31....@samsung.com> Subject: vmscan: fix increasing nr_isolated incurred by putback unevictable pages reclaim_clean_pages_from_list() assumes that shrink_page_list() returns number of pages removed from the candidate list. But shrink_page_list() puts back mlocked pages without passing it to caller and without counting as nr_reclaimed. This increases nr_isolated. To fix this, this patch changes shrink_page_list() to pass unevictable pages back to caller. Caller will take care those pages. Minchan said: It fixes two issues. 1. With unevictable page, cma_alloc will be successful. Exactly speaking, cma_alloc of current kernel will fail due to unevictable pages. 2. fix leaking of NR_ISOLATED counter of vmstat With it, too_many_isolated works. Otherwise, it could make hang until the process get SIGKILL. Signed-off-by: Jaewon Kim <jaewon31....@samsung.com> Acked-by: Minchan Kim <minc...@kernel.org> Cc: Mel Gorman <mgor...@techsingularity.net> Acked-by: Vlastimil Babka <vba...@suse.cz> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <a...@linux-foundation.org> --- mm/vmscan.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff -puN mm/vmscan.c~vmscan-fix-increasing-nr_isolated-incurred-by-putback-unevictable-pages mm/vmscan.c --- a/mm/vmscan.c~vmscan-fix-increasing-nr_isolated-incurred-by-putback-unevictable-pages +++ a/mm/vmscan.c @@ -1196,7 +1196,7 @@ cull_mlocked: if (PageSwapCache(page)) try_to_free_swap(page); unlock_page(page); - putback_lru_page(page); + list_add(&page->lru, &ret_pages); continue; activate_locked: _ Patches currently in -mm which might be from jaewon31....@samsung.com are -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html