diff options
| author | Geert Uytterhoeven <geert+renesas@glider.be> | 2015-04-14 15:44:22 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-04-14 16:48:59 -0700 |
| commit | ef2a5153b4d2c48c05b9280491cb5592a46df385 (patch) | |
| tree | 94f830b753fad9fde7746114a0bf737da3c43209 | |
| parent | 692297d8f96887f836d9049a653ed05a71cf48fb (diff) | |
mm/migrate: mark unmap_and_move() "noinline" to avoid ICE in gcc 4.7.3
With gcc version 4.7.3 (Ubuntu/Linaro 4.7.3-12ubuntu1) :
mm/migrate.c: In function `migrate_pages':
mm/migrate.c:1148:1: internal compiler error: in push_minipool_fix, at config/arm/arm.c:13500
Please submit a full bug report,
with preprocessed source if appropriate.
See <file:///usr/share/doc/gcc-4.7/README.Bugs> for instructions.
Preprocessed source stored into /tmp/ccPoM1tr.out file, please attach this to your bugreport.
make[1]: *** [mm/migrate.o] Error 1
make: *** [mm/migrate.o] Error 2
Mark unmap_and_move() (which is used in a single place only) "noinline"
to work around this compiler bug.
[akpm@linux-foundation.org: make it conditional on gcc-4.7.3 and arm]
[khilman@kernel.org: fine-tune compiler versions]
[akpm@linux-foundation.org: fix comment]
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reported-by: Kevin Hilman <khilman@kernel.org>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Tested-by: Kevin Hilman <khilman@linaro.org>
Tested-by: Lina Iyer <lina.iyer@linaro.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | mm/migrate.c | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/mm/migrate.c b/mm/migrate.c index 85e042686031..ec1802d85f05 100644 --- a/mm/migrate.c +++ b/mm/migrate.c @@ -901,12 +901,23 @@ out: } /* + * gcc 4.7 and 4.8 on arm get an ICEs when inlining unmap_and_move(). Work + * around it. + */ +#if (GCC_VERSION >= 40700 && GCC_VERSION < 40900) && defined(CONFIG_ARM) +#define ICE_noinline noinline +#else +#define ICE_noinline +#endif + +/* * Obtain the lock on page, remove all ptes and migrate the page * to the newly allocated page in newpage. */ -static int unmap_and_move(new_page_t get_new_page, free_page_t put_new_page, - unsigned long private, struct page *page, int force, - enum migrate_mode mode) +static ICE_noinline int unmap_and_move(new_page_t get_new_page, + free_page_t put_new_page, + unsigned long private, struct page *page, + int force, enum migrate_mode mode) { int rc = 0; int *result = NULL; |