diff options
| author |   Russell King <rmk+kernel@arm.linux.org.uk> | 2016-08-02 14:06:00 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2016-08-02 19:35:27 -0400 |
| commit | dae28018f56645b61f5beb84d5831346d3c5e457 (patch) | |
| tree | 3d472ba7f21e4d0c6d6283605052b716af1794a2 /include/linux/kexec.h | |
| parent | kexec: ensure user memory sizes do not wrap (diff) | |
| download | linux-dev-dae28018f56645b61f5beb84d5831346d3c5e457.tar.xz linux-dev-dae28018f56645b61f5beb84d5831346d3c5e457.zip | |
kdump: arrange for paddr_vmcoreinfo_note() to return phys_addr_t
On PAE systems (eg, ARM LPAE) the vmcore note may be located above 4GB
physical on 32-bit architectures, so we need a wider type than "unsigned
long" here. Arrange for paddr_vmcoreinfo_note() to return a
phys_addr_t, thereby allowing it to be located above 4GB.
This makes no difference for kexec-tools, as they already assume a
64-bit type when reading from this file.
Link: http://lkml.kernel.org/r/E1b8koK-0004HS-K9@rmk-PC.armlinux.org.uk
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Reviewed-by: Pratyush Anand <panand@redhat.com>
Acked-by: Baoquan He <bhe@redhat.com>
Cc: Keerthy <j-keerthy@ti.com>
Cc: Vitaly Andrianov <vitalya@ti.com>
Cc: Eric Biederman <ebiederm@xmission.com>
Cc: Dave Young <dyoung@redhat.com>
Cc: Vivek Goyal <vgoyal@redhat.com>
Cc: Simon Horman <horms@verge.net.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/kexec.h')
| -rw-r--r-- | include/linux/kexec.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/kexec.h b/include/linux/kexec.h index ce2fe197f583..555227f0029f 100644 --- a/include/linux/kexec.h +++ b/include/linux/kexec.h @@ -233,7 +233,7 @@ void crash_save_vmcoreinfo(void); void arch_crash_save_vmcoreinfo(void); __printf(1, 2) void vmcoreinfo_append_str(const char *fmt, ...); -unsigned long paddr_vmcoreinfo_note(void); +phys_addr_t paddr_vmcoreinfo_note(void); #define VMCOREINFO_OSRELEASE(value) \ vmcoreinfo_append_str("OSRELEASE=%s\n", value) |