diff options
| author | Arnd Bergmann <arnd@arndb.de> | 2023-02-14 11:30:24 +0100 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2023-02-17 05:43:55 +0100 |
| commit | 44081c77e8a4aac9c5a010ed0d9ccdcf684041e1 (patch) | |
| tree | fa4428f7e515d0a11e0f6bea74b330ddec1eb8e7 /lib/linear_ranges.c | |
| parent | mm: page_alloc: call panic() when memoryless node allocation fails (diff) | |
| download | linux-44081c77e8a4aac9c5a010ed0d9ccdcf684041e1.tar.xz linux-44081c77e8a4aac9c5a010ed0d9ccdcf684041e1.zip | |
maple_tree: reduce stack usage with gcc-9 and earlier
gcc-10 changed the way inlining works to be less aggressive, but older
versions run into an oversized stack frame warning whenever
CONFIG_KASAN_STACK is enabled, as that forces variables from inlined
callees to be non-overlapping:
lib/maple_tree.c: In function 'mas_wr_bnode':
lib/maple_tree.c:4320:1: error: the frame size of 1424 bytes is larger than 1024 bytes [-Werror=frame-larger-than=]
Change the annotations on mas_store_b_node() and mas_commit_b_node()
to explicitly forbid inlining in this configuration, which is
the same behavior that newer versions already have.
Link: https://lkml.kernel.org/r/20230214103030.1051950-1-arnd@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Liam R. Howlett <Liam.Howlett@oracle.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Konovalov <andreyknvl@gmail.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Vernon Yang <vernon2gm@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'lib/linear_ranges.c')
0 files changed, 0 insertions, 0 deletions