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| author |   Qi Zheng <zhengqi.arch@bytedance.com> | 2022-05-19 14:08:55 -0700 |
|---|---|---|
| committer |   akpm <akpm@linux-foundation.org> | 2022-05-19 14:08:55 -0700 |
| commit | 3f913fc5f9745613088d3c569778c9813ab9c129 (patch) | |
| tree | c2b292958bd1ba0306f28daf2a3640b6bd4e54b4 /include/linux/fault-inject.h | |
| parent | mm/page_alloc: fix tracepoint mm_page_alloc_zone_locked() (diff) | |
| download | wireguard-linux-3f913fc5f9745613088d3c569778c9813ab9c129.tar.xz wireguard-linux-3f913fc5f9745613088d3c569778c9813ab9c129.zip | |
mm: fix missing handler for __GFP_NOWARN
We expect no warnings to be issued when we specify __GFP_NOWARN, but
currently in paths like alloc_pages() and kmalloc(), there are still some
warnings printed, fix it.
But for some warnings that report usage problems, we don't deal with them.
If such warnings are printed, then we should fix the usage problems.
Such as the following case:
WARN_ON_ONCE((gfp_flags & __GFP_NOFAIL) && (order > 1));
[zhengqi.arch@bytedance.com: v2]
Link: https://lkml.kernel.org/r/20220511061951.1114-1-zhengqi.arch@bytedance.com
Link: https://lkml.kernel.org/r/20220510113809.80626-1-zhengqi.arch@bytedance.com
Signed-off-by: Qi Zheng <zhengqi.arch@bytedance.com>
Cc: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Jiri Slaby <jirislaby@kernel.org>
Cc: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'include/linux/fault-inject.h')
| -rw-r--r-- | include/linux/fault-inject.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/fault-inject.h b/include/linux/fault-inject.h index 2d04f6448cde..9f6e25467844 100644 --- a/include/linux/fault-inject.h +++ b/include/linux/fault-inject.h @@ -20,6 +20,7 @@ struct fault_attr { atomic_t space; unsigned long verbose; bool task_filter; + bool no_warn; unsigned long stacktrace_depth; unsigned long require_start; unsigned long require_end; @@ -39,6 +40,7 @@ struct fault_attr { .ratelimit_state = RATELIMIT_STATE_INIT_DISABLED, \ .verbose = 2, \ .dname = NULL, \ + .no_warn = false, \ } #define DECLARE_FAULT_ATTR(name) struct fault_attr name = FAULT_ATTR_INITIALIZER |