Messages in this thread Patch in this message |  | | From | Baoquan He <> | Subject | [PATCH v1 7/7] sh: mm: set VM_IOREMAP flag to the vmalloc area | Date | Sun, 4 Dec 2022 09:30:46 +0800 |
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Currently, for vmalloc areas with flag VM_IOREMAP set, except of the specific alignment clamping in __get_vm_area_node(), they will be 1) Shown as ioremap in /proc/vmallocinfo; 2) Ignored by /proc/kcore reading via vread()
So for the ioremap in __sq_remap() of sh, we should set VM_IOREMAP in flag to make it handled correctly as above.
Signed-off-by: Baoquan He <bhe@redhat.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: Rich Felker <dalias@libc.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: linux-sh@vger.kernel.org (open list:SUPERH) --- arch/sh/kernel/cpu/sh4/sq.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/sh/kernel/cpu/sh4/sq.c b/arch/sh/kernel/cpu/sh4/sq.c index a76b94e41e91..27f2e3da5aa2 100644 --- a/arch/sh/kernel/cpu/sh4/sq.c +++ b/arch/sh/kernel/cpu/sh4/sq.c @@ -103,7 +103,7 @@ static int __sq_remap(struct sq_mapping *map, pgprot_t prot) #if defined(CONFIG_MMU) struct vm_struct *vma; - vma = __get_vm_area_caller(map->size, VM_ALLOC, map->sq_addr, + vma = __get_vm_area_caller(map->size, VM_IOREMAP, map->sq_addr, SQ_ADDRMAX, __builtin_return_address(0)); if (!vma) return -ENOMEM; -- 2.34.1
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