[PATCH v3 2/3] ARM: Silence first allocation with CONFIG_ARM_MODULE_PLTS=y
From: f.fainelli@gmail.com (Florian Fainelli)
Date: 2017-04-27 18:19:38
Also in:
linux-mm, lkml
Subsystem:
arm port, the rest · Maintainers:
Russell King, Linus Torvalds
When CONFIG_ARM_MODULE_PLTS is enabled, the first allocation using the module space fails, because the module is too big, and then the module allocation is attempted from vmalloc space. Silence the first allocation failure in that case by setting __GFP_NOWARN. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> --- arch/arm/kernel/module.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-)
diff --git a/arch/arm/kernel/module.c b/arch/arm/kernel/module.c
index 80254b47dc34..3ff571c2c71c 100644
--- a/arch/arm/kernel/module.c
+++ b/arch/arm/kernel/module.c@@ -40,8 +40,15 @@ #ifdef CONFIG_MMU void *module_alloc(unsigned long size) { - void *p = __vmalloc_node_range(size, 1, MODULES_VADDR, MODULES_END, - GFP_KERNEL, PAGE_KERNEL_EXEC, 0, NUMA_NO_NODE, + gfp_t gfp_mask = GFP_KERNEL; + void *p; + + /* Silence the initial allocation */ + if (IS_ENABLED(CONFIG_ARM_MODULE_PLTS)) + gfp_mask |= __GFP_NOWARN; + + p = __vmalloc_node_range(size, 1, MODULES_VADDR, MODULES_END, + gfp_mask, PAGE_KERNEL_EXEC, 0, NUMA_NO_NODE, __builtin_return_address(0)); if (!IS_ENABLED(CONFIG_ARM_MODULE_PLTS) || p) return p;
--
2.9.3