Commit cd61413b authored by Uladzislau Rezki (Sony)'s avatar Uladzislau Rezki (Sony) Committed by Linus Torvalds

mm/vmalloc: print a warning message first on failure

When a memory allocation for array of pages are not succeed emit a warning
message as a first step and then perform the further cleanup.

The reason it should be done in a right order is the clean up function
which is free_vm_area() can potentially also follow its error paths what
can lead to confusion what was broken first.

Link: https://lkml.kernel.org/r/20210516202056.2120-4-urezki@gmail.comSigned-off-by: default avatarUladzislau Rezki (Sony) <urezki@gmail.com>
Cc: Hillf Danton <hdanton@sina.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Nicholas Piggin <npiggin@gmail.com>
Cc: Oleksiy Avramchenko <oleksiy.avramchenko@sonymobile.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 5c1f4e69
......@@ -2783,11 +2783,11 @@ static void *__vmalloc_area_node(struct vm_struct *area, gfp_t gfp_mask,
}
if (!area->pages) {
free_vm_area(area);
warn_alloc(gfp_mask, NULL,
"vmalloc size %lu allocation failure: "
"page array size %lu allocation failed",
nr_small_pages * PAGE_SIZE, array_size);
free_vm_area(area);
return NULL;
}
......
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