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authorVlastimil Babka <vbabka@suse.cz>2016-03-15 14:56:02 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2016-03-15 16:55:16 -0700
commitc5c990e8a1fe313a5ab13f069f1410acf932927b (patch)
treeca30a81c69179e0112c440847e53682f13aa80aa /mm
parentb8eceeb99014cf5ae90d7f2c606d36074baa73ae (diff)
downloadop-kernel-dev-c5c990e8a1fe313a5ab13f069f1410acf932927b.zip
op-kernel-dev-c5c990e8a1fe313a5ab13f069f1410acf932927b.tar.gz
mm, page_alloc: print symbolic gfp_flags on allocation failure
It would be useful to translate gfp_flags into string representation when printing in case of an allocation failure, especially as the flags have been undergoing some changes recently and the script ./scripts/gfp-translate needs a matching source version to be accurate. Example output: stapio: page allocation failure: order:9, mode:0x2080020(GFP_ATOMIC) Signed-off-by: Vlastimil Babka <vbabka@suse.cz> Acked-by: Michal Hocko <mhocko@suse.com> Acked-by: David Rientjes <rientjes@google.com> Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com> Cc: Minchan Kim <minchan@kernel.org> Cc: Sasha Levin <sasha.levin@oracle.com> Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> Cc: Mel Gorman <mgorman@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm')
-rw-r--r--mm/page_alloc.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 36a0a79..4e8029a 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -2695,9 +2695,8 @@ void warn_alloc_failed(gfp_t gfp_mask, unsigned int order, const char *fmt, ...)
va_end(args);
}
- pr_warn("%s: page allocation failure: order:%u, mode:0x%x\n",
- current->comm, order, gfp_mask);
-
+ pr_warn("%s: page allocation failure: order:%u, mode:%#x(%pGg)\n",
+ current->comm, order, gfp_mask, &gfp_mask);
dump_stack();
if (!should_suppress_show_mem())
show_mem(filter);
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