+ mm-vmalloc-repair-warn_allocs-in-__vmalloc_area_node.patch added to -mm tree

+ mm-vmalloc-repair-warn_allocs-in-__vmalloc_area_node.patch added to -mm tree

[akpm]

The patch titled
     Subject: mm/vmalloc: repair warn_alloc()s in __vmalloc_area_node()
has been added to the -mm tree.  Its filename is
     mm-vmalloc-repair-warn_allocs-in-__vmalloc_area_node.patch

This patch should soon appear at
    https://ozlabs.org/~akpm/mmots/broken-out/mm-vmalloc-repair-warn_allocs-in-__vmalloc_area_node.patch
and later at
    https://ozlabs.org/~akpm/mmotm/broken-out/mm-vmalloc-repair-warn_allocs-in-__vmalloc_area_node.patch

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------------------------------------------------------
From: Vasily Averin <vvs@virtuozzo.com>
Subject: mm/vmalloc: repair warn_alloc()s in __vmalloc_area_node()

Commit f255935b9767 ("mm: cleanup the gfp_mask handling in
__vmalloc_area_node") added __GFP_NOWARN to gfp_mask unconditionally
however it disabled all output inside warn_alloc() call.  This patch saves
original gfp_mask and provides it to all warn_alloc() calls.

Link: https://lkml.kernel.org/r/f4f3187b-9684-e426-565d-827c2a9bbb0e@virtuozzo.com
Fixes: f255935b9767 ("mm: cleanup the gfp_mask handling in __vmalloc_area_node")
Signed-off-by: Vasily Averin <vvs@virtuozzo.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Cc: Uladzislau Rezki (Sony) <urezki@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 mm/vmalloc.c |    7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

--- a/mm/vmalloc.c~mm-vmalloc-repair-warn_allocs-in-__vmalloc_area_node
+++ a/mm/vmalloc.c
@@ -2884,6 +2884,7 @@ static void *__vmalloc_area_node(struct
 				 int node)
 {
 	const gfp_t nested_gfp = (gfp_mask & GFP_RECLAIM_MASK) | __GFP_ZERO;
+	const gfp_t orig_gfp_mask = gfp_mask;
 	unsigned long addr = (unsigned long)area->addr;
 	unsigned long size = get_vm_area_size(area);
 	unsigned long array_size;
@@ -2904,7 +2905,7 @@ static void *__vmalloc_area_node(struct
 	}
 
 	if (!area->pages) {
-		warn_alloc(gfp_mask, NULL,
+		warn_alloc(orig_gfp_mask, NULL,
 			"vmalloc error: size %lu, failed to allocated page array size %lu",
 			nr_small_pages * PAGE_SIZE, array_size);
 		free_vm_area(area);
@@ -2924,7 +2925,7 @@ static void *__vmalloc_area_node(struct
 	 * allocation request, free them via __vfree() if any.
 	 */
 	if (area->nr_pages != nr_small_pages) {
-		warn_alloc(gfp_mask, NULL,
+		warn_alloc(orig_gfp_mask, NULL,
 			"vmalloc error: size %lu, page order %u, failed to allocate pages",
 			area->nr_pages * PAGE_SIZE, page_order);
 		goto fail;
@@ -2932,7 +2933,7 @@ static void *__vmalloc_area_node(struct
 
 	if (vmap_pages_range(addr, addr + size, prot, area->pages,
 			page_shift) < 0) {
-		warn_alloc(gfp_mask, NULL,
+		warn_alloc(orig_gfp_mask, NULL,
 			"vmalloc error: size %lu, failed to map pages",
 			area->nr_pages * PAGE_SIZE);
 		goto fail;
_

Patches currently in -mm which might be from vvs@virtuozzo.com are

memcg-prohibit-unconditional-exceeding-the-limit-of-dying-tasks.patch
mm-vmalloc-repair-warn_allocs-in-__vmalloc_area_node.patch